OPINIONS OF THE LORDS OF APPEAL FOR JUDGMENT

First part

 

Second part

LORD HUTTON

LORD SAVILLE OF NEWDIGATE

LORD MILLETT

LORD PHILLIPS OF WORTH MATRAVERS

State Immunity
The nature of the claim to immunity
The sources of immunity
Custom
Judicial decisions
Writings of authors
Immunity from civil suit of the State itself
The vital issue
The development of international criminal law
The State Immunity Act 1978

 

 

LORD HUTTON

My Lords,

The rehearing of this appeal has raised a number of separate issues which have been fully considered in the speech of my noble and learned friend Lord Browne-Wilkinson which I have had the benefit of reading in draft. I am in agreement with his reasoning and conclusion that the definition of an "extradition crime" in the Extradition Act 1989 requires the conduct to be criminal under United Kingdom law at the date of commission. I am also in agreement with the analysis and conclusions of my noble and learned friend Lord Hope of Craighead as to the alleged crimes in respect of which Senator Pinochet could be extradited apart from any issue of immunity. I further agree with the view of Lord Browne-Wilkinson that Senator Pinochet is entitled to immunity in respect of charges of murder and conspiracy to murder, but I wish to make some observations on the issue of immunity claimed by Senator Pinochet in respect of charges of torture and conspiracy to torture.

Senator Pinochet ceased to be head of state of Chile on 11 March 1990, and he claims immunity as a former head of state. The distinction between the immunity of a serving head of state and the immunity of a former head of state is discussed by Sir Arthur Watts K.C.M.G., Q.C. in his monograph, "The Legal Position in International Law of Heads of States, Heads of Governments and Foreign Ministers". He states at pp. 53, 88 and 89:

 "It is well established that, put broadly, a head of state enjoys a wide immunity from the criminal, civil and administrative jurisdiction of other states. This immunity—to the extent that it exists—becomes effective upon his assumption of office, even in respect of events occurring earlier. . .

 "A head of state’s immunity is enjoyed in recognition of his very special status as a holder of his state’s highest office . . .

 "A former head of state is entitled under international law to none of the facilities, immunities and privileges which international law accords to heads of states in office. . .

 "After his loss of office he may be sued in relation to his private activities, both those taking place while he was still head of state, as well as those occurring before becoming head of state or since ceasing to be head of state. . .

 "A head of state’s official acts, performed in his public capacity as head of state, are however subject to different considerations. Such acts are acts of the state rather than the head of state’s personal acts, and he cannot be sued for them even after he has ceased to be head of state. The position is similar to that of acts performed by an ambassador in the exercise of his functions for which immunity continues to subsist even after the ambassador’s appointment has come to an end." Section 20 in Part III of the State Immunity Act 1978 provides that, subject to any necessary modifications, the Diplomatic Privileges Act 1964 shall apply to a sovereign or other head of state, and section 2 of the Act of 1964 provides that the Articles of the Vienna Convention on Diplomatic Relations set out in Schedule 1 to the Act shall have the force of law in the United Kingdom. The Articles set out in Schedule 1 include Articles 29, 31 and 39. Article 29 provides:

 "The person of a diplomatic agent shall be inviolable. He shall not be liable to any form of arrest or detention."

Article 31 provides:

 "1. A diplomatic agent shall enjoy immunity from the criminal jurisdiction of the receiving state."

Article 39 provides:

 "1. Every person entitled to privileges and immunities shall enjoy them from the moment he enters the territory of the receiving state on proceedings to take up his post or, if already in its territory, from the moment when his appointment is notified to the Ministry for Foreign Affairs or such other ministry as may be agreed.

 "2. When the functions of a person enjoying privileges and immunities have come to an end, such privileges and immunities shall normally cease at the moment when he leaves the country, or on expiry of a reasonable period in which to do so, but shall subsist until that time, even in case of armed conflict. However, with respect to acts performed by such a person in the exercise of his functions as a member of the mission, immunity shall continue to subsist."

One of the issues raised before your Lordships is whether section 20 of the State Immunity Act relates only to the functions carried out by a foreign head of state when he is present within the United Kingdom, or whether it also applies to his actions in his own state or in another country. Section 20 is a difficult section to construe, but I am of opinion that, with the necessary modifications, the section applies the provisions of the Diplomatic Privileges Act, and therefore the Articles of the Vienna Convention, to the actions of a head of state in his own country or elsewhere, so that, adopting the formulation of Lord Nicholls of Birkenhead in the earlier hearing [1998] 3 W.L.R. 1456, 1499E, with the addition of seven words, the effect of section 20 of the Act of 1978, section 2 of the Diplomatic Privileges Act and of the Articles of the Vienna Convention is that:

 "a former head of state shall continue to enjoy immunity from the criminal jurisdiction of the United Kingdom with respect to acts performed by him, whether in his own country or elsewhere, in the exercise of his functions as a head of state."

I consider, however, that section 20 did not change the law in relation to the immunity from criminal jurisdiction to which a former head of state was entitled in the United Kingdom but gave statutory form to the relevant principle of international law which was part of the common law. Therefore the crucial question for decision is whether, if committed, the acts of torture (in which term I include acts of torture and conspiracy to commit torture) alleged against Senator Pinochet were carried out by him in the performance of his functions as head of state. I say "if committed" because it is not the function of your Lordships in this appeal to decide whether there is evidence to substantiate the allegations and Senator Pinochet denies them. Your Lordships had the advantage of very learned and detailed submissions from counsel for the parties and the interveners and from the amicus curiae (to which submissions I would wish to pay tribute) and numerous authorities from many jurisdictions were cited. It is clear that the acts of torture which Senator Pinochet is alleged to have committed were not acts carried out in his private capacity for his personal gratification. If that had been the case they would have been private acts and it is not disputed that Senator Pinochet, once he had ceased to be head of state, would not be entitled to claim immunity in respect of them. It was submitted on his behalf that the acts of torture were carried out for the purposes of protecting the state and advancing its interests, as Senator Pinochet saw them, and were therefore governmental functions and were accordingly performed as functions of the head of state. It was further submitted that the immunity which Senator Pinochet claimed was the immunity of the state of Chile itself. In the present proceedings Chile intervened on behalf of Senator Pinochet and in paragraph 10 of its written case Chile submitted:

 " . . . the immunity of a head of state (or former head of state) is an aspect of state immunity . . . Immunity of a head of state in his public capacity is equated with state immunity in international law . . . Actions against representatives of a foreign government in respect of their governmental or official acts are in substance proceedings against the state which they represent, and the immunity is for the benefit of the state." Moreover, it was submitted that a number of authorities established that the immunity which a state is entitled to claim in respect of the acts of its former head of state or other public officials applies to acts which are unlawful and criminal.

My Lords, in considering the authorities it is necessary to have regard to a number of matters. First, it is a principle of international law that a state may not be sued in the courts of another state without its consent (although this principle is now subject to exceptions—the exceptions in the law of the United Kingdom being set out in the State Immunity Act 1978). Halsbury’s Laws of England 4th ed. published in 1977 vol. 18 para 1548 stated:

 "An independent sovereign state may not be sued in the English courts against its will and without its consent. This immunity from the jurisdiction is derived from the rules of international law, which in this respect have become part of the law of England. It is accorded upon the grounds that the exercise of jurisdiction would be incompatible with the dignity and independence of any superior authority enjoyed by every sovereign state. The principle involved is not founded upon any technical rules of law, but upon broad considerations of public policy, international law and comity."

Secondly, many of the authorities cited by counsel were cases where an action in tort for damages was brought against a state. Thirdly, a state is responsible for the actions of its officials carried out in the ostensible performance of their official functions notwithstanding that the acts are performed in excess of their proper functions. Oppenheim’s International Law, 9th ed., states at page 545:

 "In addition to the international responsibility which a state clearly bears for the official and authorised acts of its administrative officials and members of its armed forces, a state also bears responsibility for internationally injurious acts committed by such persons in the ostensible exercise of their official functions but without that state’s command or authorisation, or in excess of their competence according to the internal law of the state, or in mistaken, ill-judged or reckless execution of their official duties. A state’s administrative officials and members of its armed forces are under its disciplinary control, and all acts of such persons in the apparent exercise of their official functions or invoking powers appropriate to their official character are prima facie attributable to the state. It is not always easy in practice to draw a clear distinction between unauthorised acts of officials and acts committed by them in their private capacity and for which the state is not directly responsible. With regard to members of armed forces the state will usually be held responsible for their acts if they have been committed in the line of duty, or in the presence of and under the orders of an official superior."

Fourthly, in respect of the jurisdiction of the courts of the United Kingdom, foreign states are now expressly given immunity in civil proceedings (subject to certain express exceptions) by statute. Part I of the State Immunity Act 1978 relating to civil proceedings provides in section 1(1):

 "A state is immune from the jurisdiction of the courts of the United Kingdom except as provided in the following provisions of this part of this Act."

But Part I of the Act has no application to criminal jurisdiction and section 16(4) in Part I provides:

 "This Part of this Act does not apply to criminal proceedings." In the United States of America section 1604 of the Foreign Sovereign Immunities Act 1976 provides:

 "Subject to existing international agreements to which the United States is a party at the time of enactment of this Act a foreign state shall be immune from the jurisdiction of the courts of the United States and of the states except as provided in sections 1605 to 1607 of this chapter." Counsel for Senator Pinochet and for Chile relied on the decision of the Court of Appeal in Al-Adsani v. Government of Kuwait (1996) 107 I.L.R. 536 where the plaintiff brought an action for damages in tort against the government of Kuwait claiming that he had been tortured in Kuwait by officials of that government. The Court of Appeal upheld a claim by the government of Kuwait that it was entitled to immunity. Counsel for the plaintiff submitted that the rule of international law prohibiting torture is so fundamental that it is jus cogens which overrides all other principles of international law, including the principle of sovereign immunity. This submission was rejected by the Court of Appeal on the ground that immunity was given by section 1 of the State Immunity Act 1978 and that the immunity was not subject to an overriding qualification in respect of torture or other acts contrary to international law which did not fall within one of the express exceptions contained in the succeeding sections of the Act. Ward L.J. stated at p. 549:

 "Unfortunately, the Act is as plain as plain can be. A foreign state enjoys no immunity for acts causing personal injury committed in the United Kingdom and if that is expressly provided for the conclusion is impossible to escape that state immunity is afforded in respect of acts of torture committed outside this jurisdiction."

A similar decision was given by the United States Court of Appeals, Ninth Circuit, in Siderman de Blake v. Republic of Argentina (1992) 965 F.2d 699 where an Argentine family brought an action for damages in tort against Argentina and one of its provinces for acts of torture by military officials. Argentina claimed that it was entitled to immunity under the Foreign Sovereign Immunities Act and the Court of Appeals, with reluctance, upheld this claim. The argument advanced on behalf of the plaintiffs was similar to that advanced in the Al-Adsani case, but the court ruled that it was obliged to reject it because of the express provisions of the Foreign Sovereign Immunities Act, stating at p. 718:

 "The Sidermans argue that since sovereign immunity itself is a principle of international law, it is trumped by jus cogens. In short, they argue that when a state violates jus cogens, the cloak of immunity provided by international law falls away, leaving the state amenable to suit.

 "As a matter of international law, the Sidermans’ argument carries much force.

. . .

 "Unfortunately, we do not write on a clean slate. We deal not only with customary international law, but with an affirmative Act of Congress, the FSIA. We must interpret the FSIA through the prism of Amerada Hess. Nothing in the text or legislative history of the FSIA explicitly addresses the effect violations of jus cogens might have on the FSIA’s cloak of immunity. Argentina contends that the Supreme Court’s statement in Amerada Hess that the FSIA grants immunity ‘in those cases involving alleged violations of international law that do not come within one of the FSIA’s exceptions’, 488 U.S. at 436, 109 S.Ct. at 688, precludes the Sidermans’ reliance on jus cogens in this case. Clearly, the FSIA does not specifically provide for an exception to sovereign immunity based on jus cogens. In Amerada Hess, the court had no occasion to consider acts of torture or other violations of the peremptory norms of international law, and such violations admittedly differ in kind from transgressions of jus dispositivum, the norms derived from international agreements or customary international law with which the Amerada Hess court dealt. However, the court was so emphatic in its pronouncement ‘that immunity is granted in those cases involving alleged violations of international law that do not come within one of the FSIA’s exceptions,’ Amerada Hess, 488 U.S. at 436, 109 S. Ct. at 688, and so specific in its formulation and method of approach, id. at 439, 109 S.Ct. at 690 (‘Having determined that the FSIA provides the sole basis for obtaining jurisdiction over a foreign state in federal court, we turn to whether any of the exceptions enumerated in the Act apply here’), we conclude that if violations of jus cogens committed outside the United States are to be exceptions to immunity, Congress must make them so. The fact that there has been a violation of jus cogens does not confer jurisdiction under the FSIA." It has also been decided that where an action for damages in tort is brought against officials of a foreign state for actions carried out by them in ostensible exercise of their governmental functions, they can claim state immunity, notwithstanding that their actions were illegal. The state itself, if sued directly for damages in respect of their actions would be entitled to immunity and this immunity would be impaired if damages were awarded against the officials and then the state was obliged to indemnify them. In Jaffe v. Miller [1993] I.L.R. 446, government officials were sued in tort for laying false criminal charges and for conspiracy for kidnap, and it was held that they were entitled to claim immunity. Finlayson J.A., delivering the judgment of the Ontario Court of Appeal, stated at pp. 458-459:

 "I also agree with the reasoning on this issue put forward by counsel for the respondents. Counsel submitted that to confer immunity on a government department of a foreign state but to deny immunity to the functionaries, who in the course of their duties performed the acts, would render the State Immunity Act ineffective. To avoid having its action dismissed on the ground of state immunity, a plaintiff would have only to sue the functionaries who performed the acts. In the event that the plaintiff recovered judgment, the foreign state would have to respond to it by indemnifying its functionaries, thus, through this indirect route, losing the immunity conferred on it by the Act. Counsel submitted that when functionaries are acting within the scope of their official duties, as in the present case, they come within the definition of ‘foreign state’."

In my opinion these authorities and similar authorities relating to claims for damages in tort against states and government officials do not support the claim of Senator Pinochet to immunity from criminal proceedings in the United Kingdom because the immunity given by Part I of the State Immunity Act 1978 does not apply to criminal proceedings. Counsel for Senator Pinochet and for Chile further submitted that under the rules of international law courts recognise the immunity of a former head of state in respect of criminal acts committed by him in the purported exercise of governmental authority. In Marcos and Marcos v. Federal Department of Police (1989) 102 I.L.R. 198 the United States instituted criminal proceedings against Ferdinard Marcos, the former President of the Philippines, and his wife, who had been a Minister in the Philippine Government. They were accused of having abused their positions to acquire for themselves public funds and works of art. The United States authorities sought legal assistance from the Swiss authorities to obtain banking and other documents in order to clarify the nature of certain transactions which were the subject of investigation. Mr. Marcos and his wife claimed immunity as the former leaders of a foreign state. In its judgment the Swiss federal tribunal stated at p. 203:

 "The immunity in relation to their functions which the appellants enjoyed therefore subsisted for those criminal acts which were allegedly committed while they were still exercising their powers in the Republic of the Philippines. The proceedings brought against them before the United States courts could therefore only be pursued pursuant to an express waiver by the State of the Philippines of the immunity which public international law grants them not as a personal advantage but for the benefit of the state over which they ruled."

The tribunal then held that the immunity could not be claimed by Mr. & Mrs Marcos in Switzerland because there had been an express waiver by the State of the Philippines. However I would observe that in that case Mr. and Mrs Marcos were not accused of violating a rule of international law which had achieved the status of jus cogens.

Counsel also relied on the decision of the Federal Constitutional Court of the Federal Republic of Germany In re Former Syrian Ambassador to the German Democratic Republic (unreported) 10 June 1997. In that case the former Syrian ambassador to the German Democratic Republic was alleged to have failed to prevent a terrorist group from removing a bag of explosives from the Syrian Embassy, and a few hours later the explosives were used in an attack which left one person dead and more than 20 persons seriously injured. Following German unification and the demise of the German Democratic Republic in 1990 a District Court in Berlin issued an arrest warrant against the former ambassador for complicity in murder and the causing of an explosion. The Provincial Court quashed the warrant but the Court of Appeal overruled the decision of the Provincial Court and restored the validity of the warrant, holding that "The complainant was held to have contributed to the attack by omission. He had done nothing to prevent the explosives stored at the embassy building from being removed." The former ambassador then lodged a constitutional complaint claiming that he was entitled to diplomatic immunity.

The Constitutional Court rejected the complaint and held that the obligation limited to the former German Democratic Republic to recognise the continuing immunity of the complainant, according to Article 39(2) of the Vienna Convention, was not transferred to the Federal Republic of Germany by the international law of state succession.

Counsel for Senator Pinochet and for Chile relied on the following passage in the judgment of the constitutional court:

 "For the categorization as an official act, it is irrelevant whether the conduct is legal according to the legal order of the Federal Republic of Germany (see above B.II.2.a)bb)) and whether it fulfilled diplomatic functions in the sense of Article 3 of the VCDR (see also the position taken by the [Swiss] Federal Political Department on 12 May [82] 1961, Schweizerisches Jahrbuch für internationles Recht (SJIR) 21 [1964] p. 171; however, a different position was taken by the Federal Political Department on 31 January 1979, reproduced in SJIR 36 (1980), p. 210 at 211 f.). The commission of criminal acts does not simply concern the functions of the mission. If a criminal act was never considered as official, there would be no substance to continuing immunity.

 "In addition, there is no relevant customary international law exception from diplomatic immunity here (see Preamble to the VCDR, 5th paragraph) . . .

 "Diplomatic immunity from criminal prosecution basically knows no exception for particularly serious violations of law. The diplomat can in such situations only be declared persona non grata."

However, two further parts of the judgment are to be noted. First, it appears that the explosives were left in the embassy when the ambassador was absent, and his involvement began after the explosives had been left in the embassy. The report states:

  "The investigation conducted by the Public Prosecutor’s Office concluded that the bombing attack was planned and carried out by a terrorist group. The complainant’s sending state had, in a telegram, instructed its embassy in East Berlin to provide every possible assistance to the group. In the middle of August 1983 a member of the terrorist group appeared in the embassy while the complainant was absent and requested permission from the then third secretary to deposit a bag in the embassy. In view of the telegram, which was known to him, the third secretary granted that permission.

  "Later, the member of the terrorist group returned to the embassy and asked the third secretary to transport the bag to West Berlin for him in an embassy car. At the same time, he revealed that there were explosives in the bag. The third secretary informed the complainant of the request. The complainant first ordered the third secretary to bring him the telegram, in order to read through the text carefully once again, and then decided that the third secretary could refuse to provide the transportation. After the third secretary had returned and informed the terrorist of this, the terrorist took the bag, left the embassy and conveyed the explosive in an unknown manner towards West Berlin."

It appears that these facts were taken into account by the constitutional court when it stated:

 "The complainant acted in the exercise of his official functions as a member of the mission, within the meaning of Article 39(2)(2) of the VCDR, because he is charged with an omission that lay within the sphere of his responsibility as ambassador, and which is to that extent attributable to the sending state.

 "The complainant was charged with having done nothing to prevent the return of the explosive. The Court of Appeal derived the relevant obligation of conduct out of the official responsibility of the complainant, as leader of the mission, for objects left in the embassy. After the explosive was left in the embassy and therefore in the complainant’s sphere of control and responsibility, he was obligated, within the framework of his official duties, to decide how the explosive would then be dealt with. The complainant made such a decision, apparently on the basis of the telegraphed instruction from his sending state, so that private interests are not discernible (on the classification of activities on the basis of instructions see the Bingham Case in McNair, International Law Opinions, Vol. 1, 1956, p. 196 at 197; Denza, Diplomatic Law, 1976, p. 249 f.; Salmon Manuel de Droit Diplomatique, 1994, p. 458 ff.). Instead, the complainant responded to the third secretary directly, in his position as the superior official, and, according to the view of the Court of Appeal, sought the best solution for the embassy."

In addition the constitutional court stated that the rules of diplomatic law constitute a self-contained regime and drew a distinction between the immunity of a diplomat and the immunity of a head of state or governmental official and stated:

 "Article 7 of the Charter of the International Military Tribunal of Nuremberg (UNTS. Vol. 82, p. 279) [7] and following it Article 7(2) of the Statute of the International Criminal Tribunal for Yugoslavia (ILM 32 (1993), p. 1192), as well as Article 6(2) of the Statute for the International Criminal Tribunal for Rwanda (ILM 33 (1994), p. 1602) state that the official position of an accused, whether as a leader of a state or as a responsible official in a Government department, does not serve to free him from responsibility or mitigate punishment. Exemptions from immunity for cases of war criminals, violations of international law and offences against jus cogens under international law have been discussed as developments of this rule. . . .However, as the wording of Article 7 of the Charter of the International Military Tribunal of Nuremberg makes clear, these exceptions are relevant only to the applicable law of state organs that flows directly from it, in particular for members of the Government, and not to diplomatic immunity.

 "State immunity and diplomatic immunity represent two different institutions of international law, each with their own rules, so that no inference can be drawn from any restrictions in one sphere as to possible effects in the other."

Therefore I consider that the passage in the judgment relied on by counsel does not give support to the argument that acts of torture, although criminal, can be regarded as functions of a head of state. In 1946 the General Assembly of the United Nations affirmed: "The principles of international law recognised by the Charter of the Nuremberg Tribunal and the judgment of the Tribunal" and gave the following directive to its International Law Commission:

 "This Committee on the codification of international law established by the resolution of the General Assembly of 11 December 1946, to treat as a matter of primary importance plans for the formulation, in the context of a general codification of offences against the peace and security of mankind, or of an international criminal code, of the principles recognised in the Charter of the Nuremberg Tribunal and in the judgment of the Tribunal." Pursuant to this directive the 1950 Report of the International Law Commission to the General Assembly set out the following principle followed by the commentary contained in paragraph 103:

 "The fact that a person who committed an act which constitutes a crime under international law acted as head of state or responsible Government official does not relieve him from responsibility under international law.

 "103. This principle is based on article 7 of the Charter of the Nürnberg Tribunal. According to the Charter and the judgment, the fact that an individual acted as head of state or responsible government official did not relieve him from international responsibility. ‘The principle of international law which, under certain circumstances, protects the representatives of a state’,said the Tribunal, ‘cannot be applied to acts which are condemned as criminal by international law. The authors of these acts cannot shelter themselves behind their official position in order to be freed from punishment . . . .’ The same idea was also expressed in the following passage of the findings: ‘He who violates the laws of war cannot obtain immunity while acting in pursuance of the authority of the state if the state in authorising action moves outside its competence under international law."

The 1954 International Law Commission draft code of offences against the peace and security of mankind provided in Article III:

 "The fact that a person acted as head of state or as responsible Government official does not relieve him of responsibility for committing any of the offences defined in the code."

The Statute of the International Tribunal for the former Yugoslavia established by the Security Council of the United Nations in 1993 for the prosecution of persons responsible for serious violations of international humanitarian law committed in the territory of the former Yugoslavia since 1991 provided in Article 7 paragraph 2:

 "The official position of any accused person, whether as head of state or Government or as a responsible Government official, shall not relieve such person of criminal responsibility nor mitigate punishment." The Statute of the International Tribunal for Rwanda established by the Security Council of the United Nations in 1994 for the prosecution of persons responsible for genocide and other serious violations of international humanitarian law committed in the territory of Rwanda in 1994 provided in Article 6 paragraph 2:

 "The official position of any accused person, whether as head of state or Government or as a responsible Government official shall not relieve such person of criminal responsibility nor mitigate punishment." The 1996 draft code of the International Law Commission of Crimes against the Peace and Security of Mankind provided in Article 7:

 "The official position of an individual who commits a crime against the peace and security of mankind, even if he acted as head of state of Government, does not relieve him of criminal responsibility or mitigate punishment."

In July 1998 in Rome the United Nations Diplomatic Conference of Plenipotentiaries on the Establishment of an International Criminal Court adopted the Statute of the International Criminal Court. The Preamble to the Statute states (inter alia):

 "Mindful that during this century millions of children, women and men have been victims of unimaginable atrocities that deeply shock the conscience of humanity,

 "Recognizing that such grave crimes threaten the peace, security and well-being of the world,

 "Affirming that the most serious crimes of concern to the international community as a whole must not go unpunished and that their effective prosecution must be ensured by taking measures at the national level and by enhancing international cooperation,  

"Determined to put an end to impunity for the perpetrators of these crimes and thus to contribute to the prevention of such crimes,  

"Determined to these ends and for the sake of present and future generations, to establish an independent permanent International Criminal Court in relationship with the United Nations system, with jurisdiction over the most serious crimes of concern to the international community as a whole.

 "Emphasising that the International Criminal Court established under this Statute shall be complementary to national criminal jurisdictions.

 "Resolved to guarantee lasting respect for the enforcement of international justice,

 "Have agreed as follows:"

Article 5 of the Statute provides that jurisdiction of the court shall be limited to the most serious crimes of concern to the international community as a whole which include crimes against humanity. Article 7 states that "crime against humanity" means a number of acts including murder and torture when committed as part of a widespread or systematic attack directed against any civilian population, with knowledge of the attack.

Article 27 provides:

 "1. This Statute shall apply equally to all persons without any distinction based on official capacity. In particular, official capacity as a head of state or Government, a member of a Government or parliament, an elected representative or a government official shall in no case exempt a person from criminal responsibility under this Statute, nor shall it, in and of itself, constitute a ground for reduction of sentence.

 "2. Immunities or special procedural rules which may attach to the official capacity of a person, whether under national or international law, shall not bar the court from exercising its jurisdiction over such a person." Therefore since the end of the second world war there has been a clear recognition by the international community that certain crimes are so grave and so inhuman that they constitute crimes against international law and that the international community is under a duty to bring to justice a person who commits such crimes. Torture has been recognised as such a crime. The preamble to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment 1984 ("the Torture Convention), which has been signed by the United Kingdom, Spain and Chile and by over one hundred other nations, states:

 "Considering that, in accordance with the principles proclaimed in the Charter of the United Nations, recognition of the equal and inalienable rights of all members of the human family is the foundation of freedom, justice and peace in the world,

 "Recognizing that those rights derive from the inherent dignity of the human person,

 "Considering the obligation of states under the Charter, in particular Article 55, to promote universal respect for, and observance of, human rights and fundamental freedoms,

 "Having regard to article 5 of the Universal Declaration of Human Rights and article 7 of the International Covenant on Civil and Political Rights, both of which provide that no one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment,

 "Having regard also to the Declaration on Protection of All Persons from Being Subjected to Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment adopted by the General Assembly on 9 December 1975

 "Desiring to make more effective the struggle against torture and other cruel, inhuman or degrading treatment or punishment throughout the world,

 "Have agreed as follows:"

Article 1 defines "torture" as any act by which severe pain or suffering, whether physical or mental, is intentionally inflicted on a person for purposes specified in the Article such as punishment or intimidation or obtaining information or a confession, and such pain and suffering is inflicted "by or at the instigation of or with the consent or acquiescence of a public official or other person acting in an official capacity." The Convention then contains a number of Articles designed to make the measures against public officials who commit acts of torture more effective.

In their handbook on the Convention, Burgers and Danelius stated at p. 1:

 "It is expedient to redress at the outset a widespread misunderstanding as to the objective of the Convention against Torture and other Cruel, Inhuman or Degrading Treatment or Punishment, adopted by the General Assembly of the United Nations in 1984. Many people assume that the Convention’s principal aim is to outlaw torture and other cruel, inhuman or degrading treatment or punishment. This assumption is not correct insofar as it would imply that the prohibition of these practices is established under international law by the Convention only and that this prohibition will be binding as a rule of international law only for those states which have become parties to the Convention. On the contrary, the Convention is based upon the recognition that the above-mentioned practices are already outlawed under international law. The principal aim of the Convention is to strengthen the existing prohibition of such practices by a number of supportive measures." As your Lordships hold that there is no jurisdiction to extradite Senator Pinochet for acts of torture prior to 29 September 1988, which was the date on which section 134 of the Criminal Justice Act 1988 came into operation, it is unnecessary to decide when torture became a crime against international law prior to that date, but I am of opinion that acts of torture were clearly crimes against international law and that the prohibition of torture had required the status of ius cogens by that date. The appellants accepted that in English courts a serving head of state is entitled (ratione personae) to immunity in respect of acts of torture which he has committed. Burgers and Danelius, referring to the obligation of a state party to the convention to establish its jurisdiction over offences of torture, recognise that some special immunities may exist in respect of acts of torture and state at p. 131:

 "under international or national law, there may be certain limited exceptions to this rule, e.g. in relation to foreign diplomats, foreign troops, parliament members or other categories benefiting from special immunities, and such immunities may be accepted insofar as they apply to criminal acts in general and are not unduly extensive." It is also relevant to note that article 98 of the Rome Statute establishing the International Criminal Court provides:

 "The court may not proceed with a request for surrender or assistance which would require the requested state to act inconsistently with its obligations under international law with respect to the state or diplomatic immunity of a person or property of a third state, unless the court can first obtain the cooperation of that third state for the waiver of the immunity." But the issue in the present case is whether Senator Pinochet, as a former head of state, can claim immunity (ratione materiae) on the grounds that acts of torture committed by him when he was head of state were done by him in exercise of his functions as head of state. In my opinion he is not entitled to claim such immunity. The Torture Convention makes it clear that no state is to tolerate torture by its public officials or by persons acting in an official capacity and Article 2 requires that:

 "1. Each state party shall take effective legislative, administrative, judicial or other measures to prevent acts of torture in any territory under its jurisdiction."

Article 2 further provides that:

 "2. No exceptional circumstances whatsoever, whether a state of war or a threat of war, internal political instability or any other public emergency, may be invoked as a justification of torture."

Article 4 provides:

 "1. Each state party shall ensure that all acts of torture are offences under its criminal law. The same shall apply to an attempt to commit torture and to an act by any person which constitutes complicity or participation in torture."

 "2. Each state party shall make these offences punishable by appropriate penalties which take into account their grave nature."

Article 7 provides:

 "1. The state party in the territory under whose jurisdiction a person alleged to have committed any offence referred to in article 4 is found, shall in the cases contemplated in article 5, if it does not extradite him, submit the case to its competent authorities for the purpose of prosecution."

I do not accept the argument advanced by counsel on behalf of Senator Pinochet that the provisions of the Convention were designed to give one state jurisdiction to prosecute a public official of another state in the event of that state deciding to waive state immunity. I consider that the clear intent of the provisions is that an official of one state who has committed torture should be prosecuted if he is present in another state. Therefore having regard to the provisions of the Torture Convention, I do not consider that Senator Pinochet or Chile can claim that the commission of acts of torture after 29 September 1988 were functions of the head of state. The alleged acts of torture by Senator Pinochet were carried out under colour of his position as head of state, but they cannot be regarded as functions of a head of state under international law when international law expressly prohibits torture as a measure which a state can employ in any circumstances whatsoever and has made it an international crime. It is relevant to observe that in 1996 the military government of Chile informed a United Nations working group on human rights violations in Chile that torture was unconditionally prohibited in Chile, that the Constitutional prohibition against torture was fully enforced and that:

 "It is therefore apparent that the practice of inflicting unlawful ill-treatment has not been instituted in our country as is implied by the resolution [a UN resolution critical of Chile] and that such ill-treatment is not tolerated; on the contrary, a serious, comprehensive and coherent body of provisions exist to prevent the occurrence of such ill-treatment and to punish those responsible for any type of abuse." It is also relevant to note that in his opening oral submissions on behalf of Chile Dr. Lawrence Collins Q.C. stated:

 "the Government of Chile, several of whose present members were in prison or exile during those years, deplores the fact that the governmental authorities of the period of the dictatorship committed major violations of human rights in Chile. It reaffirms its commitment to human rights, including the prohibition of torture."

In its written submissions (which were repeated by Dr. Collins in his oral submissions) Chile stated:

 "The Republic intervenes to assert its own interest and right to have these matters dealt with in Chile. The purpose of the intervention is not to defend the actions of Senator Pinochet whilst he was head of state. Nor is the purpose to prevent him from being investigated and tried for any crime he is alleged to have committed whilst in office, provided that any investigation and trial takes place in the only appropriate courts, namely those of Chile. The democratically elected Government of the Republic of Chile upholds the commitment of the Republic under international conventions to the maintenance and promotion of human rights. The position of the Chilean Government on state immunity is not intended as a personal shield for Senator Pinochet, but is intended to defend Chilean national sovereignty, in accordance with generally accepted principles of international law. Its plea, therefore, does not absolve Senator Pinochet from responsibility in Chile if the acts alleged against him are proved." My Lords, the position taken by the democratically elected Government of Chile that it desires to defend Chilean national sovereignty and considers that any investigation and trial of Senator Pinochet should take place in Chile is understandable. But in my opinion that is not the issue which is before your Lordships; the issue is whether the commission of acts of torture taking place after 29 September 1988 was a function of the head of state of Chile under international law. For the reasons which I have given I consider that it was not.

Article 32(2) of the Vienna Convention set out in Schedule 1 to the Diplomatic Privileges Act 1964 provides that: "waiver must always be express." I consider, with respect, that the conclusion that after 29 September 1988 the commission of acts of torture was not under international law a function of the head of state of Chile does not involve the view that Chile is to be taken as having impliedly waived the immunity of a former head of state. In my opinion there has been no waiver of the immunity of a former head of state in respect of his functions as head of state. My conclusion that Senator Pinochet is not entitled to immunity is based on the view that the commission of acts of torture is not a function of a head of state, and therefore in this case the immunity to which Senator Pinochet is entitled as a former head of state does not arise in relation to, and does not attach to, acts of torture.

A number of international instruments define a crime against humanity as one which is committed on a large scale. Article 18 of the Draft Code of Crimes against the Peace and Security of Mankind 1996 provides:

 "A crime against humanity means any of the following acts, when committed in a systematic manner on a large scale or instigated or directed by a Government or any organisation or a group:

 (a) Murder;

 (b) Extermination;

 (c) Torture  . . ."

And article 7 of the 1998 Rome Statute of the International Criminal Court provides:

 "For the purposes of this Statute, ‘crime against humanity’ means any of the following acts when committed as part of a wide spread or systematic attack directed against any civilian population, with knowledge of the attack:

 (a) Murder;

 (b) Extermination;

 . . .

 (f) Torture

 . . ."

However, article 4 of the Torture Convention provides that:

 "Each state party shall ensure that all acts of torture are offences under its criminal law." (emphasis added)

Therefore I consider that a single act of torture carried out or instigated by a public official or other person acting in a official capacity constitutes a crime against international law, and that torture does not become an international crime only when it is committed or instigated on a large scale. Accordingly I am of opinion that Senator Pinochet cannot claim that a single act of torture or a small number of acts of torture carried out by him did not constitute international crimes and did not constitute acts committed outside the ambit of his functions as head of state. For the reasons given by Oppenheim at p. 545, which I have cited in an earlier part of this judgment, I consider that under international law Chile is responsible for acts of torture carried out by Senator Pinochet, but could claim state immunity if sued for damages for such acts in a court in the United Kingdom. Senator Pinochet could also claim immunity if sued in civil proceedings for damages under the principle stated in Jaffe v. Miller. But I am of opinion that there is no inconsistency between Chile and Senator Pinochet’s entitlement to claim immunity if sued in civil proceedings for damages and Senator Pinochet’s lack of entitlement to claim immunity in criminal proceedings for torture brought against him personally. This distinction between the responsibility of the state for the improper and unauthorised acts of a state official outside the scope of his functions and the individual responsibility of that official in criminal proceedings for an international crime is recognised in Article 4 and the commentary thereon in the 1996 draft Report of the International Law Commission:

 "Responsibility of States

 The fact that the present Code provides for the responsibility of individuals for crimes against the peace and security of mankind is without prejudice to any question of the responsibility of states under international law.

 "Commentary

 (1) Although, as made clear by article 2, the present Code addresses matters relating to the responsibility of individuals for the crimes set out in Part II, it is possible, indeed likely, as pointed out in the commentary to article 2, that an individual may commit a crime against the peace and security of mankind as an ‘agent of the State’, ‘on behalf of the State’, ‘in the name of the State’ or even in a de facto relationship with the state, without being vested with any legal power.

 (2) The ‘without prejudice’ clause contained in article 4 indicates that the present Code is without prejudice to any question of the responsibility of a state under international law for a crime committed by one of its agents. As the commission already emphasised in the commentary to article 19 of the draft articles on state responsibility, the punishment of individuals who are organs of the state ‘certainly does not exhaust the prosecution of the international responsibility incumbent upon the state for internationally wrongful acts which are attributed to it in such cases by reason of the conduct of its organs’. The state may thus remain responsible and be unable to exonerate itself from responsibility by invoking the prosecution or punishment of the individuals who committed the crime." Therefore for the reasons which I have given I am of opinion that Senator Pinochet is not entitled to claim immunity in the extradition proceedings in respect of conspiracy to torture and acts of torture alleged to have been committed by him after 29 September 1988 and to that extent I would allow the appeal. However I am in agreement with the view of Lord Browne-Wilkinson that the Secretary of State should reconsider his decision under section 7 of the Extradition Act 1989 in the light of the changed circumstances arising from your Lordships’ decision.

 

LORD SAVILLE OF NEWDIGATE

My Lords,

In this case the Government of Spain seeks the extradition of Senator Pinochet (the former head of state of Chile) to stand trial in Spain for a number of alleged crimes. On this appeal two questions of law arise. Senator Pinochet can only be extradited for what in the Extradition Act 1989 is called an extradition crime. Thus the first question of law is whether any of the crimes of which he stands accused in Spain is an extradition crime within the meaning of that Act.

As to this, I am in agreement with the reasoning and conclusions in the speech of my noble and learned friend Lord Browne-Wilkinson. I am also in agreement with the reasons given by my noble and learned friend Lord Hope of Craighead in his speech for concluding that only those few allegations that he identifies amount to extradition crimes.

These extradition crimes all relate to what Senator Pinochet is said to have done while he was head of state of Chile. The second question of law is whether, in respect of these extradition crimes, Senator Pinochet can resist the extradition proceedings brought against him on the grounds that he enjoys immunity from these proceedings.

In general, under customary international law serving heads of state enjoy immunity from criminal proceedings in other countries by virtue of holding that office. This form of immunity is known as immunity ratione personae. It covers all conduct of the head of state while the person concerned holds that office and thus draws no distinction between what the head of state does in his official capacity (i.e. what he does as head of state for state purposes) and what he does in his private capacity. Former heads of state do not enjoy this form of immunity. However, in general under customary international law a former head of state does enjoy immunity from criminal proceedings in other countries in respect of what he did in his official capacity as head of state. This form of immunity is known as immunity ratione materiae.

These immunities belong not to the individual but to the state in question. They exist in order to protect the sovereignty of that state from interference by other states. They can, of course, be modified or removed by agreement between states or waived by the state in question. In my judgment the effect of Section 20(1)(a) of the State Immunity Act 1978 is to give statutory force to these international law immunities. The relevant allegations against Senator Pinochet concern not his private activities but what he is said to have done in his official capacity when he was head of state of Chile. It is accepted that the extradition proceedings against him are criminal proceedings. It follows that unless there exists, by agreement or otherwise, any relevant qualification or exception to the general rule of immunity ratione materiae, Senator Pinochet is immune from this extradition process.

The only possible relevant qualification or exception in the circumstances of this case relates to torture.

I am not persuaded that before the Torture Convention there was any such qualification or exception. Although the systematic or widespread use of torture became universally condemned as an international crime, it does not follow that a former head of state, who as head of state used torture for state purposes, could under international law be prosecuted for torture in other countries where previously under that law he would have enjoyed immunity ratione materiae.

The Torture Convention set up a scheme under which each state becoming a party was in effect obliged either to extradite alleged torturers found within its jurisdiction or to refer the case to its appropriate authorities for the purpose of prosecution. Thus as between the states who are parties to the Convention, there is now an agreement that each state party will establish and have this jurisdiction over alleged torturers from other state parties.

This country has established this jurisdiction through a combination of Section 134 of the Administration of Justice Act 1988 and the Extradition Act 1989. It ratified the Torture Convention on 8 December 1988. Chile’s ratification of the Convention took effect on 30 October 1988 and that of Spain just over a year earlier.

It is important to bear in mind that the Convention applies (and only applies) to any act of torture "inflicted by or at the instigation of or with the consent or acquiescence of a public official or other person acting in an official capacity." It thus covers what can be described as official torture and must therefore include torture carried out for state purposes. The words used are wide enough to cover not only the public officials or persons acting in an official capacity who themselves inflict torture but also (where torture results) those who order others to torture or who conspire with others to torture.

To my mind it must follow in turn that a head of state, who for state purposes resorts to torture, would be a person acting in an official capacity within the meaning of this Convention. He would indeed to my mind be a prime example of an official torturer.

It does not follow from this that the immunity enjoyed by a serving head of state, which is entirely unrelated to whether or not he was acting in an official capacity, is thereby removed in cases of torture. In my view it is not, since immunity ratione personae attaches to the office and not to any particular conduct of the office holder.

On the other hand, the immunity of a former head of state does attach to his conduct whilst in office and is wholly related to what he did in his official capacity.

So far as the states that are parties to the Convention are concerned, I cannot see how, so far as torture is concerned, this immunity can exist consistently with the terms of that Convention. Each state party has agreed that the other state parties can exercise jurisdiction over alleged official torturers found within their territories, by extraditing them or referring them to their own appropriate authorities for prosecution; and thus to my mind can hardly simultaneously claim an immunity from extradition or prosecution that is necessarily based on the official nature of the alleged torture.

Since 8 December 1988 Chile, Spain and this country have all been parties to the Torture Convention. So far as these countries at least are concerned it seems to me that from that date these state parties are in agreement with each other that the immunity ratione materiae of their former heads of state cannot be claimed in cases of alleged official torture. In other words, so far as the allegations of official torture against Senator Pinochet are concerned, there is now by this agreement an exception or qualification to the general rule of immunity ratione materiae.

I do not reach this conclusion by implying terms into the Torture Convention, but simply by applying its express terms. A former head of state who it is alleged resorted to torture for state purposes falls in my view fairly and squarely within those terms and on the face of it should be dealt with in accordance with them. Indeed it seems to me that it is those who would seek to remove such alleged official torturers from the machinery of the Convention who in truth have to assert that by some process of implication or otherwise the clear words of the Convention should be treated as inapplicable to a former head of state, notwithstanding he is properly described as a person who was "acting in an official capacity". I can see no valid basis for such an assertion. It is said that if it had been intended to remove immunity for alleged official torture from former heads of state there would inevitably have been some discussion of the point in the negotiations leading to the treaty. I am not persuaded that the apparent absence of any such discussions takes the matter any further. If there were states that wished to preserve such immunity in the face of universal condemnation of official torture, it is perhaps not surprising that they kept quiet about it.

It is also said that any waiver by states of immunities must be express, or at least unequivocal. I would not dissent from this as a general proposition, but it seems to me that the express and unequivocal terms of the Torture Convention fulfil any such requirement. To my mind these terms demonstrate that the states who have become parties have clearly and unambiguously agreed that official torture should now be dealt with in a way which would otherwise amount to an interference in their sovereignty. For the same reasons it seems to me that the wider arguments based on Act of State or non-justiciability must also fail, since they are equally inconsistent with the terms of the Convention agreed by these state parties. I would accordingly allow this appeal to the extent necessary to permit the extradition proceedings to continue in respect of the crimes of torture and (where it is alleged that torture resulted) of conspiracy to torture, allegedly committed by Senator Pinochet after 8 December 1988. I would add that I agree with what my noble and learned friend Lord Hope of Craighead has said at the end of his speech with regard to the need for the Secretary of State to reconsider his decision and (if renewed authority to proceed is given) the very careful attention the magistrate must pay to the information laid before him.

LORD MILLETT

My Lords,

I have had the advantage of reading in draft the speech of my noble and learned friend, Lord Browne-Wilkinson. Save in one respect, I agree with his reasoning and conclusions. Since the one respect in which I differ is of profound importance to the outcome of this appeal, I propose to set out my own process of reasoning at rather more length than I might otherwise have done.

State immunity is not a personal right. It is an attribute of the sovereignty of the state. The immunity which is in question in the present case, therefore, belongs to the Republic of Chile, not to Senator Pinochet. It may be asserted or waived by the state, but where it is waived by treaty or convention the waiver must be express. So much is not in dispute. The doctrine of state immunity is the product of the classical theory of international law. This taught that states were the only actors on the international plane; the rights of individuals were not the subject of international law. States were sovereign and equal: it followed that one state could not be impleaded in the national courts of another; par in parem non habet imperium. States were obliged to abstain from interfering in the internal affairs of one another. International law was not concerned with the way in which a sovereign state treated its own nationals in its own territory. It is a cliche of modern international law that the classical theory no longer prevails in its unadulterated form. The idea that individuals who commit crimes recognised as such by international law may be held internationally accountable for their actions is now an accepted doctrine of international law. The adoption by most major jurisdictions of the restrictive theory of state immunity, enacted into English law by Part I of the State Immunity Act 1978, has made major inroads into the doctrine as a bar to the jurisdiction of national courts to entertain civil proceedings against foreign states. The question before your Lordships is whether a parallel, though in some respects opposite, development has taken place so as to restrict the availability of state immunity as a bar to the criminal jurisdiction of national courts.

Two overlapping immunities are recognised by international law; immunity ratione personae and immunity ratione materiae. They are quite different and have different rationales.

Immunity ratione personae is a status immunity. An individual who enjoys its protection does so because of his official status. It enures for his benefit only so long as he holds office. While he does so he enjoys absolute immunity from the civil and criminal jurisdiction of the national courts of foreign states. But it is only narrowly available. It is confined to serving heads of state and heads of diplomatic missions, their families and servants. It is not available to serving heads of government who are not also heads of state, military commanders and those in charge of the security forces, or their subordinates. It would have been available to Hitler but not to Mussolini or Tojo. It is reflected in English law by section 20(1) of the State Immunity Act 1978, enacting customary international law and the Vienna Convention on Diplomatic Relations (1961). The immunity of a serving head of state is enjoyed by reason of his special status as the holder of his state’s highest office. He is regarded as the personal embodiment of the state itself. It would be an affront to the dignity and sovereignty of the state which he personifies and a denial of the equality of sovereign states to subject him to the jurisdiction of the municipal courts of another state, whether in respect of his public acts or private affairs. His person is inviolable; he is not liable to be arrested or detained on any ground whatever. The head of a diplomatic mission represents his head of state and thus embodies the sending state in the territory of the receiving state. While he remains in office he is entitled to the same absolute immunity as his head of state in relation both to his public and private acts.

This immunity is not in issue in the present case. Senator Pinochet is not a serving head of state. If he were, he could not be extradited. It would be an intolerable affront to the Republic of Chile to arrest him or detain him. Immunity ratione materiae is very different. This is a subject-matter immunity. It operates to prevent the official and governmental acts of one state from being called into question in proceedings before the courts of another, and only incidentally confers immunity on the individual. It is therefore a narrower immunity but it is more widely available. It is available to former heads of state and heads of diplomatic missions, and any one whose conduct in the exercise of the authority of the state is afterwards called into question, whether he acted as head of government, government minister, military commander or chief of police, or subordinate public official. The immunity is the same whatever the rank of the office-holder. This too is common ground. It is an immunity from the civil and criminal jurisdiction of foreign national courts but only in respect of governmental or official acts. The exercise of authority by the military and security forces of the state is the paradigm example of such conduct. The immunity finds its rationale in the equality of sovereign states and the doctrine of non-interference in the internal affairs of other states: see Duke of Brunswick v. King of Hanover (1848) 2 H.L.Cas. 1; Hatch v. Baez (1876) 7 Hun. 596 U.S.; Underhill v. Hernandez (1897) 168 U.S. 456. These hold that the courts of one state cannot sit in judgment on the sovereign acts of another. The immunity is sometimes also justified by the need to prevent the serving head of state or diplomat from being inhibited in the performance of his official duties by fear of the consequences after he has ceased to hold office. This last basis can hardly be prayed in aid to support the availability of the immunity in respect of criminal activities prohibited by international law.

Given its scope and rationale, it is closely similar to and may be indistinguishable from aspects of the Anglo-American Act of State doctrine. As I understand the difference between them, state immunity is a creature of international law and operates as a plea in bar to the jurisdiction of the national court, whereas the Act of State doctrine is a rule of domestic law which holds the national court incompetent to adjudicate upon the lawfulness of the sovereign acts of a foreign state.

Immunity ratione materiae is given statutory form in English law by the combined effect of section 20(1) of the State Immunity Act 1978 the Diplomatic Privileges Act 1964 and Article 39.2 of the Vienna Convention. The Act of 1978 is not without its difficulties. The former head of state is given the same immunity "subject to all necessary modifications" as a former diplomat, who continues to enjoy immunity in respect of acts committed by him "in the exercise of his functions." The functions of a diplomat are limited to diplomatic activities, ie. acts performed in his representative role in the receiving state. He has no broader immunity in respect of official or governmental acts not performed in exercise of his diplomatic functions: see Dinstein on Diplomatic Immunity from Jurisdiction Ratione Materiae (1966) 15 International and Comparative Law Quarterly 76 at 82. There is therefore a powerful argument for holding that, by a parity of reasoning, the statutory immunity conferred on a former head of state by the Act of 1978 is confined to acts performed in his capacity as head of state, ie. in his representative role. If so, the statutory immunity would not protect him in respect of official or governmental acts which are not distinctive of a head of state, but which he performed in some other official capacity, whether as head of government, commander-in-chief or party leader. It is, however, not necessary to decide whether this is the case, for any narrow statutory immunity is subsumed in the wider immunity in respect of other official or governmental acts under customary international law.

The charges brought against Senator Pinochet are concerned with his public and official acts, first as Commander-in-Chief of the Chilean army and later as head of state. He is accused of having embarked on a widespread and systematic reign of terror in order to obtain power and then to maintain it. If the allegations against him are true, he deliberately employed torture as an instrument of state policy. As international law stood on the eve of the Second World War, his conduct as head of state after he seized power would probably have attracted immunity ratione materiae. If so, I am of opinion that it would have been equally true of his conduct during the period before the coup was successful. He was not then, of course, head of state. But he took advantage of his position as Commander-in-Chief of the army and made use of the existing military chain of command to deploy the armed forces of the state against its constitutional government. These were not private acts. They were official and governmental or sovereign acts by any standard. The immunity is available whether the acts in question are illegal or unconstitutional or otherwise unauthorised under the internal law of the state, since the whole purpose of state immunity is to prevent the legality of such acts from being adjudicated upon in the municipal courts of a foreign state. A sovereign state has the exclusive right to determine what is and is not illegal or unconstitutional under its own domestic law. Even before the end of the Second World War, however, it was questionable whether the doctrine of state immunity accorded protection in respect of conduct which was prohibited by international law. As early as 1841, according to Quincy Wright (see (1947) 41 A.J.I.L at p. 71), many commentators held the view that:

 "the Government’s authority could not confer immunity upon its agents for acts beyond its powers under international law."

Thus state immunity did not provide a defence to a crime against the rules of war: see Sir Hirsch Lauterpacht (1947) 63 L.Q.R. pp. 442-3. Writing in (1946) 59 Harvard Law Journal 396 before the Nuremberg Tribunal delivered its judgment and commenting on the seminal judgment of Chief Justice Marshall in Schooner Exchange v. McFaddon (1812) 11 U.S. (7 Cranch) 116, Sheldon Glueck observed at p. 426:

 "As Marshall implied, even in an age when the doctrine of sovereignty had a strong hold, the non-liability of agents of a state for ‘acts of state’ must rationally be based on the assumption that no member of the Family of Nations will order its agents to commit flagrant violations of international and criminal law."

Glueck added (at p. 427) that:

 "In modern times a state is—ex hypothesi- incapable of ordering or ratifying acts which are not only criminal according to generally accepted principles of domestic penal law but also contrary to that international law to which all states are perforce subject. Its agents, in performing such acts, are therefore acting outside their legitimate scope; and must, in consequence be held personally liable for their wrongful conduct." It seems likely that Glueck was contemplating trial before municipal courts, for more than half a century was to pass before the establishment of a truly international criminal tribunal. This would also be consistent with the tenor of his argument that the concept of sovereignty was of relatively recent origin and had been mistakenly raised to what he described as the "status of some holy fetish."

Whether conduct contrary to the peremptory norms of international law attracted state immunity from the jurisdiction of national courts, however, was largely academic in 1946, since the criminal jurisdiction of such courts was generally restricted to offences committed within the territory of the forum state or elsewhere by the nationals of that state. In this connection it is important to appreciate that the International Military Tribunal (the Nuremberg Tribunal) which was established by the four Allied Powers at the conclusion of the Second World War to try the major war criminals was not, strictly speaking, an international court or tribunal. As Sir Hersch Lauterpacht explained in Oppenheim’s International Law vol. II 7th ed. (1952) pp. 580-1, the Tribunal was:

 ". . . the joint exercise by the four states which established the Tribunal, of a right which each of them was entitled to exercise separately on its own responsibility in accordance with international law." In its judgment the Tribunal described the making of the Charter as an exercise of sovereign legislative power by the countries to which the German Reich had unconditionally surrendered, and of the undoubted right of those countries to legislate for the occupied territories which had been recognised by the whole civilised world.

Article 7 of the Charter of the Tribunal provided:

 "The official position of defendants, whether as heads of state or responsible officials in government departments, shall not be considered as freeing them from responsibility or mitigating punishment." (my emphasis)

In its judgment the Tribunal ruled that:

 ". . . the very essence of the Charter is that individuals have international duties which transcend the national obligations of obedience imposed by the individual state. He who violates the rules of war cannot obtain immunity while acting in pursuance of the authority of the state if the state in authorising action moves outside its competence under international law . . . The principle of international law, which under certain circumstances protects the representatives of a state, cannot be applied to acts which are condemned as criminal by international law" (my emphasis).

The great majority of war criminals were tried in the territories where the crimes were committed. As in the case of the major war criminals tried at Nuremberg, they were generally (though not always) tried by national courts or by courts established by the occupying powers. The jurisdiction of these courts has never been questioned and could be said to be territorial. But everywhere the plea of state immunity was rejected in respect of atrocities committed in the furtherance of state policy in the course of the Second World War; and nowhere was this justified on the narrow (though available) ground that there is no immunity in respect of crimes committed in the territory of the forum state.

The principles of the Charter of the International Military Tribunal and the Judgment of the Tribunal were unanimously affirmed by Resolution 95 of the General Assembly of the United Nations in 1946. Thereafter it was no longer possible to deny that individuals could be held criminally responsibility for war crimes and crimes against peace and were not protected by state immunity from the jurisdiction of national courts. Moreover, while it was assumed that the trial would normally take place in the territory where the crimes were committed, it was not suggested that this was the only place where the trial could take place.

The Nuremberg Tribunal ruled that crimes against humanity fell within its jurisdiction only if they were committed in the execution of or in connection with war crimes or crimes against peace. But this appears to have been a jurisdictional restriction based on the language of the Charter. There is no reason to suppose that it was considered to be a substantive requirement of international law. The need to establish such a connection was natural in the immediate aftermath of the Second World War. As memory of the war receded, it was abandoned.

In 1946 the General Assembly had entrusted the formulation of the principles of international law recognised in the Charter of the Nuremberg Tribunal and the Judgment of the Tribunal to the International Law Commission. It reported in 1954. It rejected the principle that international criminal responsibility for crimes against humanity should be limited to crimes committed in connection with war crimes or crimes against peace. It was, however, necessary to distinguish international crimes from ordinary domestic offences. For this purpose, the Commission proposed that acts would constitute international crimes only if they were committed at the instigation or the toleration of state authorities. This is the distinction which was later adopted in the Convention against Torture (1984). In my judgment it is of critical importance in relation to the concept of immunity ratione materiae. The very official or governmental character of the acts which is necessary to found a claim to immunity ratione materiae, and which still operates as a bar to the civil jurisdiction of national courts, was now to be the essential element which made the acts an international crime. It was, no doubt, for this reason that the Commission’s draft code provided that: "The fact that a person acted as head of state or as a responsible Government official does not relieve him of responsibility for committing any of the offences defined in the code."

The landmark decision of the Supreme Court of Israel in Attorney-General of Israel v. Eichmann (1962) 36 I.L.R. 5 is also of great significance. Eichmann had been a very senior official of the Third Reich. He was in charge of Department IV D-4 of the Reich Main Security Office, the Department charged with the implementation of the Final Solution, and subordinate only to Heydrich and Himmler. He was abducted from Argentina and brought to Israel, where he was tried in the District Court for Tel Aviv. His appeal against conviction was dismissed by the Supreme Court. The means by which he was brought to Israel to face trial has been criticised by academic writers, but Israel’s right to assert jurisdiction over the offences has never been questioned.

The court dealt separately with the questions of jurisdiction and Act of State. Israel was not a belligerent in the Second World War, which ended three years before the state was founded. Nor were the offences committed within its territory. The District Court found support for its jurisdiction in the historic link between the State of Israel and the Jewish people. The Supreme Court preferred to concentrate on the international and universal character of the crimes of which the accused had been convicted, not least because some of them were directed against non-Jewish groups (Poles, Slovenes, Czechs and gipsies).

As a matter of domestic Israeli law, the jurisdiction of the court was derived from an Act of 1950. Following the English doctrine of Parliamentary supremacy, the court held that it was bound to give effect to a law of the Knesset even if it conflicted with the principles of international law. But it went on to hold that the law did not conflict with any principle of international law. Following a detailed examination of the authorities, including the judgment of the Permanent Court of International Justice in the Lotus case, 7 September 1927, it concluded that there was no rule of international law which prohibited a state from trying a foreign national for an act committed outside its borders. There seems no reason to doubt this conclusion. The limiting factor that prevents the exercise of extra-territorial criminal jurisdiction from amounting to an unwarranted interference with the internal affairs of another state is that, for the trial to be fully effective, the accused must be present in the forum state. Significantly, however, the court also held that the scale and international character of the atrocities of which the accused had been convicted fully justified the application of the doctrine of universal jurisdiction. It approved the general consensus of jurists that war crimes attracted universal jurisdiction: see, for example, Greenspan’s The Modern Law of Land Warfare (1959) where he writes at p. 420 that:

 "Since each sovereign power stands in the position of a guardian of international law, and is equally interested in upholding it, any state has the legal right to try war crimes, even though the crimes have been committed against the nationals of another power and in a conflict to which that state is not a party."

This seems to have been an independent source of jurisdiction derived from customary international law, which formed part of the unwritten law of Israel, and which did not depend on the statute. The court explained that the limitation often imposed on the exercise of universal jurisdiction, that the state which apprehended the offender must first offer to extradite him to the state in which the offence was committed, was not intended to prevent the violation of the latter’s territorial sovereignty. Its basis was purely practical. The great majority of the witnesses and the greater part of the evidence would normally be concentrated in that state, and it was therefore the most convenient forum for the trial.

Having disposed of the objections to its jurisdiction, the court rejected the defence of Act of State. As formulated, this did not differ in any material respect from a plea of immunity ratione materiae. It was based on the fact that in committing the offences of which he had been convicted the accused had acted as an organ of the state, "whether as head of the state or a responsible official acting on the government’s orders." The court applied Article 7 of the Nuremberg Charter (which it will be remembered expressly referred to the head of state) and which it regarded as having become part of the law of nations.

The case is authority for three propositions:

 (1) There is no rule of international law which prohibits a state from exercising extraterritorial criminal jurisdiction in respect of crimes committed by foreign nationals abroad.

 (2) War crimes and atrocities of the scale and international character of the Holocaust are crimes of universal jurisdiction under customary international law.

 (3) The fact that the accused committed the crimes in question in the course of his official duties as a responsible officer of the state and in the exercise of his authority as an organ of the state is no bar to the exercise of the jurisdiction of a national court.

The case was followed in the United States in Demjanjuk v. Petrovsky (1985) 603 F. Supp. 1468 aff’d. 776 F. 2d. 571. In the context of an extradition request by the State of Israel the court accepted Israel’s right to try a person charged with murder in the concentration camps of Eastern Europe. It held that the crimes were crimes of universal jurisdiction, observing:

 "International law provides that certain offences may be punished by any state because the offenders are enemies of all mankind and all nations have an equal interest in their apprehension and punishment." The difficulty is to know precisely what is the ambit of the expression "certain offences".

Article 5 of the Universal Declaration of Human Rights of 1948 and Article 7 of the International Covenant on Civil and Political Rights of 1966 both provided that no one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment. A resolution of the General Assembly in 1973 proclaimed the need for international co-operation in the detection, arrest, extradition and punishment of persons guilty of war crimes and crimes against humanity. A further resolution of the General Assembly in 1975 proclaimed the desire to make the struggle against torture more effective throughout the world. The fundamental human rights of individuals, deriving from the inherent dignity of the human person, had become a commonplace of international law. Article 55 of the Charter of the United Nations was taken to impose an obligation on all states to promote universal respect for and observance of human rights and fundamental freedoms. The trend was clear. War crimes had been replaced by crimes against humanity. The way in which a state treated its own citizens within its own borders had become a matter of legitimate concern to the international community. The most serious crimes against humanity were genocide and torture. Large scale and systematic use of torture and murder by state authorities for political ends had come to be regarded as an attack upon the international order. Genocide was made an international crime by the Genocide Convention in 1948. By the time Senator Pinochet seized power, the international community had renounced the use of torture as an instrument of state policy. The Republic of Chile accepts that by 1973 the use of torture by state authorities was prohibited by international law, and that the prohibition had the character of jus cogens or obligation erga omnes. But it insists that this does not confer universal jurisdiction or affect the immunity of a former head of state ratione materiae from the jurisdiction of foreign national courts.

In my opinion, crimes prohibited by international law attract universal jurisdiction under customary international law if two criteria are satisfied. First, they must be contrary to a peremptory norm of international law so as to infringe a jus cogens. Secondly, they must be so serious and on such a scale that they can justly be regarded as an attack on the international legal order. Isolated offences, even if committed by public officials, would not satisfy these criteria. The first criterion is well attested in the authorities and text books: for a recent example, see the judgment of the international tribunal for the territory of the former Yugoslavia in Prosecutor v. Anto Furundzija (unreported) given on 10 December 1998, where the court stated:

 "At the individual level, that is, of criminal liability, it would seem that one of the consequences of the jus cogens character bestowed by the international community upon the prohibition of torture is that every state is entitled to investigate, prosecute, and punish or extradite individuals accused of torture who are present in a territory under its jurisdiction." The second requirement is implicit in the original restriction to war crimes and crimes against peace, the reasoning of the court in Eichmann, and the definitions used in the more recent Conventions establishing ad hoc international tribunals for the former Yugoslavia and Rwanda. Every state has jurisdiction under customary international law to exercise extra-territorial jurisdiction in respect of international crimes which satisfy the relevant criteria. Whether its courts have extra-territorial jurisdiction under its internal domestic law depends, of course, on its constitutional arrangements and the relationship between customary international law and the jurisdiction of its criminal courts. The jurisdiction of the English criminal courts is usually statutory, but it is supplemented by the common law. Customary international law is part of the common law, and accordingly I consider that the English courts have and always have had extra-territorial criminal jurisdiction in respect of crimes of universal jurisdiction under customary international law. In their handbook on the Convention against Torture (1984), Burgers and Danelius wrote at p. 1:

 "Many people assume that the Convention’s principal aim is to outlaw torture and other cruel, inhuman or degrading treatment or punishment. This assumption is not correct insofar as it would imply that the prohibition of these practices is established under international law by the Convention only and that the prohibition will be binding as a rule of international law only for those states which have become parties to the Convention. On the contrary, the Convention is based upon the recognition that the above-mentioned practices are already outlawed under international law. The principal aim of the Convention is to strengthen the existing prohibition of such practices by a number of supportive measures." In my opinion, the systematic use of torture on a large scale and as an instrument of state policy had joined piracy, war crimes and crimes against peace as an international crime of universal jurisdiction well before 1984. I consider that it had done so by 1973. For my own part, therefore, I would hold that the courts of this country already possessed extra-territorial jurisdiction in respect of torture and conspiracy to torture on the scale of the charges in the present case and did not require the authority of statute to exercise it. I understand, however, that your Lordships take a different view, and consider that statutory authority is require before our courts can exercise extra-territorial criminal jurisdiction even in respect of crimes of universal jurisdiction. Such authority was conferred for the first time by section 134 of the Criminal Justice Act 1988, but the section was not retrospective. I shall accordingly proceed to consider the case on the footing that Senator Pinochet cannot be extradited for any acts of torture committed prior to the coming into force of the section. The Convention against Torture (1984) did not create a new international crime. But it redefined it. Whereas the international community had condemned the widespread and systematic use of torture as an instrument of state policy, the Convention extended the offence to cover isolated and individual instances of torture provided that they were committed by a public official. I do not consider that offences of this kind were previously regarded as international crimes attracting universal jurisdiction. The charges against Senator Pinochet, however, are plainly of the requisite character. The Convention thus affirmed and extended an existing international crime and imposed obligations on the parties to the Convention to take measures to prevent it and to punish those guilty of it. As Burgers and Danielus explained, its main purpose was to introduce an institutional mechanism to enable this to be achieved. Whereas previously states were entitled to take jurisdiction in respect of the offence wherever it was committed, they were now placed under an obligation to do so. Any state party in whose territory a person alleged to have committed the offence was found was bound to offer to extradite him or to initiate proceedings to prosecute him. The obligation imposed by the Convention resulted in the passing of section 134 of the Criminal Justice Act 1988. I agree, therefore, that our courts have statutory extra-territorial jurisdiction in respect of the charges of torture and conspiracy to torture committed after the section had come into force and (for the reasons explained by my noble and learned friend, Lord Hope of Craighead) the charges of conspiracty to murder where the conspiracy took place in Spain. I turn finally to the plea of immunity ratione materiae in relation to the remaining allegations of torture, conspiracy to torture and conspiracy to murder. I can deal with the charges of conspiracy to murder quite shortly. The offences are alleged to have taken place in the requesting state. The plea of immunity ratione materiae is not available in respect of an offence committed in the forum state, whether this be England or Spain. The definition of torture, both in the Convention and section 134, is in my opinion entirely inconsistent with the existence of a plea of immunity ratione materiae. The offence can be committed only by or at the instigation of or with the consent or acquiescence of a public official or other person acting in an official capacity. The official or governmental nature of the act, which forms the basis of the immunity, is an essential ingredient of the offence. No rational system of criminal justice can allow an immunity which is co-extensive with the offence.

In my view a serving head of state or diplomat could still claim immunity ratione personae if charged with an offence under section 134. He does not have to rely on the character of the conduct of which he is accused. The nature of the charge is irrelevant; his immunity is personal and absolute. But the former head of state and the former diplomat are in no different position from anyone else claiming to have acted in the exercise of state authority. If the respondent’s arguments were accepted, section 134 would be a dead letter. Either the accused was acting in a private capacity, in which case he cannot be charged with an offence under the section; or he was acting in an official capacity, in which case he would enjoy immunity from prosecution. Perceiving this weakness in her argument, counsel for Senator Pinochet submitted that the United Kingdom took jurisdiction so that it would be available if, but only if, the offending state waived its immunity. I reject this explanation out of hand. It is not merely far-fetched; it is entirely inconsistent with the aims and object of the Convention. The evidence shows that other states were to be placed under an obligation to take action precisely because the offending state could not be relied upon to do so.

My Lords, the Republic of Chile was a party to the Torture Convention, and must be taken to have assented to the imposition of an obligation on foreign national courts to take and exercise criminal jurisdiction in respect of the official use of torture. I do not regard it as having thereby waived its immunity. In my opinion there was no immunity to be waived. The offence is one which could only be committed in circumstances which would normally give rise to the immunity. The international community had created an offence for which immunity ratione materiae could not possibly be available. International law cannot be supposed to have established a crime having the character of a jus cogens and at the same time to have provided an immunity which is co-extensive with the obligation it seeks to impose. In my opinion, acts which attract state immunity in civil proceedings because they are characterised as acts of sovereign power may, for the very same reason, attract individual criminal liability. The respondents relied on a number of cases which show that acts committed in the exercise of sovereign power do not engage the civil liability of the state even if they are contrary to international law. I do not find those decisions determinative of the present issue or even relevant. In England and the United States they depend on the terms of domestic legislation; though I do not doubt that they correctly represent the position in international law. I see nothing illogical or contrary to public policy in denying the victims of state sponsored torture the right to sue the offending state in a foreign court while at the same time permitting (and indeed requiring) other states to convict and punish the individuals responsible if the offending state declines to take action. This was the very object of the Torture Convention. It is important to emphasise that Senator Pinochet is not alleged to be criminally liable because he was head of state when other responsible officials employed torture to maintain him in power. He is not alleged to be vicariously liable for the wrongdoing of his subordinates. He is alleged to have incurred direct criminal responsibility for his own acts in ordering and directing a campaign of terror involving the use of torture. Chile insists on the exclusive right to prosecute him. The Torture Convention, however, gives it only the primary right. If it does not seek his extradition (and it does not) then the United Kingdom is obliged to extradite him to another requesting state or prosecute him itself. My Lords, we have come a long way from what I earlier described as the classical theory of international law - a long way in a relatively short time. But as the Privy Council pointed out in In re Piracy Jure Gentium [1934] A.C. 586 at p. 597, international law has not become a crystallised code at any time, but is a living and expanding branch of the law. Glueck observed (op.cit. at p. 398) that:

 "unless we are prepared to abandon every principle of growth for international law, we cannot deny that our own day has its right to institute customs."

In a footnote to this passage he added:

 "Much of the law of nations has its roots in custom. Custom must have a beginning; and customary usages of states in the matter of national and personal liability for resort to prohibited methods of warfare and to wholesale criminalism have not been petrified for all time." The law has developed still further since 1984, and continues to develop in the same direction. Further international crimes have been created. Ad hoc international criminal tribunals have been established. A permanent international criminal court is in the process of being set up. These developments could not have been foreseen by Glueck and the other jurists who proclaimed that individuals could be held individually liable for international crimes. They envisaged prosecution before national courts, and this will necessarily remain the norm even after a permanent international tribunal is established. In future those who commit atrocities against civilian populations must expect to be called to account if fundamental human rights are to be properly protected. In this context, the exalted rank of the accused can afford no defence.

For my own part, I would allow the appeal in respect of the charges relating to the offences in Spain and to torture and conspiracy to torture wherever and whenever carried out. But the majority of your Lordships think otherwise, and consider that Senator Pinochet can be extradited only in respect of a very limited number of charges. This will transform the position from that which the Secretary of State considered last December. I agree with my noble and learned friend Lord Browne-Wilkinson that it will be incumbent on the Secretary of State to reconsider the matter in the light of the very different circumstances which now prevail.

 

LORD PHILLIPS OF WORTH MATRAVERS

My Lords,

The Spanish government seeks extradition of Senator Pinochet to stand trial for crimes committed in a course of conduct spanning a lengthy period. My noble and learned friend Lord Browne-Wilkinson has described how, before your Lordships’ House, the Spanish Government contended for the first time that the relevant conduct extended back to 1 January 1972, and now covered a significant period before Senator Pinochet became head of state and thus before acts done in that capacity could result in any immunity. This change in the Spanish Government’s case rendered critical issues that have hitherto barely been touched on. What is the precise nature of the double criminality rule that governs whether conduct amounts to an extradition crime and what parts of Senator Pinochet’s alleged conduct satisfy that rule? On the first issue I agree with the conclusion reached by Lord Browne-Wilkinson and on the second I agree with the analysis of my noble and learned friend, Lord Hope of Craighead.

These conclusions greatly reduce the conduct that can properly form the subject of a request for extradition under our law. They leave untouched the question of whether the English court can assert any criminal jurisdiction over acts committed by Senator Pinochet in his capacity of head of state. It is on that issue, the issue of immunity, that I would wish to add some comments of my own.

State Immunity

There is an issue as to whether the applicable law of immunity is to be found in the State Immunity Act 1978 or in principles of public international law, which form part of our common law. If the statute governs it must be interpreted, so far as possible, in a manner which accords with public international law. Accordingly I propose to start by considering the position at public international law.

The nature of the claim to immunity

These proceedings have arisen because Senator Pinochet chose to visit the United Kingdom. By so doing he became subject to the authority that this state enjoys over all within its territory. He has been arrested and is threatened with being removed against his will to Spain to answer criminal charges which are there pending. That has occurred pursuant to our extradition procedures. Both the executive and the court has a role to play in the extradition process. It is for the court to decide whether the legal requirements which are a precondition to extradition are satisfied. If they are, it is for the Home Secretary to decide whether to exercise his power to order that Senator Pinochet be extradited to Spain. If Senator Pinochet were still the head of state of Chile, he and Chile would be in a position to complain that the entire extradition process was a violation of the duties owed under international law to a person of his status. A head of state on a visit to another country is inviolable. He cannot be arrested or detained, let alone removed against his will to another country, and he is not subject to the judicial processes, whether civil or criminal, of the courts of the state that he is visiting. But Senator Pinochet is no longer head of state of Chile. While as a matter of courtesy a state may accord a visitor of Senator Pinochet’s distinction certain privileges, it is under no legal obligation to do so. He accepts, and Chile accepts, that this country no longer owes him any duty under international law by reason of his status ratione personae. Immunity is claimed, ratione materiae, on the ground that the subject matter of the extradition process is the conduct by Senator Pinochet of his official functions when he was head of state. The claim is put thus in his written case:

 "There is no distinction to be made between a head of state, a former head of state, a state official or a former state official in respect of official acts performed under colour of their office. Immunity will attach to all official acts which are imputable or attributable to the state. It is therefore the nature of the conduct and the capacity of the Respondent at the time of the conduct alleged, not the capacity of the Respondent at  the time of any suit, that is relevant."

We are not, of course, here concerned with a civil suit but with proceedings that are criminal in nature. Principles of the law of immunity that apply in relation to civil litigation will not necessarily apply to a criminal prosecution. The nature of the process with which this appeal is concerned is not a prosecution but extradition. The critical issue that the court has to address in that process is, however, whether the conduct of Senator Pinochet which forms the subject of the extradition request constituted a crime or crimes under English law. The argument in relation to extradition has proceeded on the premise that the same principles apply that would apply if Senator Pinochet were being prosecuted in this country for the conduct in question. It seems to me that that is an appropriate premise on which to proceed.

Why is it said to be contrary to international law to prosecute someone who was once head of state, or a state official, in respect of acts committed in his official capacity? It is common ground that the basis of the immunity claimed is an obligation owed to Chile, not to Senator Pinochet. The immunity asserted is Chile’s. Were these civil proceedings in which damages were claimed in respect of acts committed by Senator Pinochet in the government of Chile, Chile could argue that it was itself indirectly impleaded. That argument does not run where the proceedings are criminal and where the issue is Senator Pinochet’s personal responsibility, not that of Chile. The following general principles are advanced in Chile’s written case as supporting the immunity claimed:

 "(a) the sovereign equality of states and the maintenance of international relations require that the courts of one state will not adjudicate on the governmental acts of another state;   

  (b) intervention in the internal affairs of other states is prohibited by international law;

 (c) conflict in international relations will be caused by such adjudication or intervention."

These principles are illustrated by the following passage from Hatch v. Baez (1876) 7 Hun. 596, 5 Am. Int. L. Cas. 434, a case in which the former President of the Dominican Republic was sued in New York for injuries allegedly sustained at his hands in San Domingo.

 "The counsel for the plaintiff relies on the general principle, that all persons, of whatever rank or condition, whether in or out of office, are liable to be sued by them in violation of law. Conceding the truth and universality of that principle, it does not establish the jurisdiction of our tribunals to take cognizance of the official acts of foreign governments. We think that, by the universal comity of nations and the established rules of international law, the courts of one country are bound to abstain from sitting in judgement on the acts of another government done within its own territory. Each state is sovereign throughout its domain. The acts of the defendant for which he is sued were done by him in the exercise of that part of the sovereignty of St. Domingo which belongs to the executive department of that government. To make him amenable to a foreign jurisdiction for such acts, would be a direct assault upon the sovereignty and independence of his country. The only remedy for such wrongs must be sought through the intervention of the government of the person injured.

 "The fact that the defendant has ceased to be president of St. Domingo does not destroy his immunity. That springs from the capacity in which the acts were done, and protects the individual who did them, because they emanated from a foreign and friendly government."

This statement was made in the context of civil proceedings. I propose to turn to the sources of international law to see whether they establish that those principles have given rise to a rule of immunity in relation to criminal proceedings.

The sources of immunity

Many rules of public international law are founded upon or reflected in Conventions. This is true of those rules of state immunity which relate to civil suit—see the European Convention on State Immunity 1972. It is not, however, true of state immunity in relation to criminal proceedings. The primary source of international law is custom, that is "a clear and continuous habit of doing certain actions which has grown up under the conviction that these actions are, according to international law, obligatory or right"—Oppenheim’s International Law, 9th ed. p. 27. Other sources of international law are judicial decisions, the writing of authors and "the general principles of law recognised by all civilised nations"—see Article 38 of the Statute of the International Court of Justice. To what extent can the immunity asserted in this appeal be traced to such sources?

Custom

In what circumstances might a head of state or other state official commit a criminal offence under the law of a foreign state in the course of the performance of his official duties?

Prior to the developments in international law which have taken place in the last fifty years, the answer is very few. Had the events with which this appeal is concerned occurred in the 19th century, there could have been no question of Senator Pinochet being subjected to criminal proceedings in this country in respect of acts, however heinous, committed in Chile. This would not have been because he would have been entitled to immunity from process, but for a more fundamental reason. He would have committed no crime under the law of England and the courts of England would not have purported to exercise a criminal jurisdiction in respect of the conduct in Chile of any national of that state. I have no doubt that the same would have been true of the courts of Spain. Under international practice criminal law was territorial. This accorded with the fundamental principle of international law that one state must not intervene in the internal affairs of another. For one state to have legislated to make criminal acts committed within the territory of another state by the nationals of the latter would have infringed this principle. So it would to have exercised jurisdiction in respect of such acts. An official of one state could only commit a crime under the law of another state by going to that state and committing a criminal act there. It is certainly possible to envisage a diplomat committing a crime within the territory to which he was accredited, and even to envisage his doing so in the performance of his official functions—though this is less easy. Well established international law makes provision for the diplomat. The Vienna Convention on Diplomatic Relations 1961 provides for immunity from civil and criminal process while the diplomat is in post and, thereafter, in respect of conduct which he committed in the performance of his official functions while in post. Customary international law provided a head of state with immunity from any form of process while visiting a foreign state. It is possible to envisage a visiting head of state committing a criminal offence in the course of performing his official functions while on a visit and when clothed with status immunity. What seems inherently unlikely is that a foreign head of state should commit a criminal offence in the performance of his official functions while on a visit and subsequently return after ceasing to be head of state. Certainly this cannot have happened with sufficient frequency for any custom to have developed in relation to it. Nor am I aware of any custom which would have protected from criminal process a visiting official of a foreign state who was not a member of a special mission had he had the temerity to commit a criminal offence in the pursuance of some official function. For these reasons I do not believe that custom can provide any foundation for a rule that a former head of state is entitled to immunity from criminal process in respect of crimes committed in the exercise of his official functions.

Judicial decisions

In the light of the considerations to which I have just referred, it is not surprising that Senator Pinochet and the Republic of Chile have been unable to point to any body of judicial precedent which supports the proposition that a former head of state or other government official can establish immunity from criminal process on the ground that the crime was committed in the course of performing official functions. The best that counsel for Chile has been able to do is to draw attention to the following obiter opinion of the Swiss Federal Tribunal in Marcos and Marcos v. Federal Department of Police (1989) 102 I.L.R. 198 at pp. 202-3.

 "The privilege of the immunity from criminal jurisdiction of heads of state . . . has not been fully codified in the Vienna Convention [on Diplomatic Relations]. . . . But it cannot be concluded that the texts of conventions drafted under the aegis of the United Nations grant a lesser protection to heads of foreign states than to the diplomatic representatives of the state which those heads of state lead or universally represent. . . . Articles 32 and 39 of the Vienna Convention must therefore apply by analogy to heads of state."

Writings of authors

We have been referred to the writings of a number of learned authors in support of the immunity asserted on behalf of Senator Pinochet. Oppenheim comments at para. 456:

 "All privileges mentioned must be granted to a head of state only so long as he holds that position. Therefore, after he has been deposed or has abdicated, he may be sued, at least in respect of obligations of a private character entered into while head of state. For his official acts as head of state he will, like any other agent of a state, enjoy continuing immunity." This comment plainly relates to civil proceedings. Satow’s Guide to Diplomatic Practice 5th Edition deals in Chapter 2 with the position of a visiting head of state. The authors deal largely with immunity from civil proceedings but state (at p. 10) that under customary international law "he is entitled to immunity—probably without exception—from criminal and civil jurisdiction". After a further passage dealing with civil proceedings, the authors state:

 "A head of state who has been deposed or replaced or has abdicated or resigned is of course no longer entitled to privileges or immunities as a head of state. He will be entitled to continuing immunity in regard to acts which he performed while head of state, provided that the acts were performed in his official capacity; in this his position is no different from that of any agent of the state."

Sir Arthur Watts in his monologue on The Legal Position in International Law of Heads of State, Heads of Government and Foreign Ministers, Recueil des cours, volume 247 (1994--III) deals with the loss of immunity of a head of state who is deposed on a foreign visit. He then adds at p. 89:

 "A head of state’s official acts, performed in his public capacity as head of state, are however subject to different considerations. Such acts are acts of the state rather than the head of state’s personal acts, and he cannot be sued for them even after he has ceased to be head of state. The position is similar to that of acts performed by an ambassador in the exercise of his functions, for which immunity continues to subsist even after the ambassador’s appointment has come to an end."

My Lords, I do not find these writings, unsupported as they are by any reference to precedent or practice, a compelling foundation for the immunity in respect of criminal proceedings that is asserted. General principles of law recognised by all civilised nations The claim for immunity raised in this case is asserted in relation to a novel type of extra-territorial criminal jurisdiction. The nature of that jurisdiction I shall consider shortly. If immunity from that jurisdiction is to be established it seems to me that this can only be on the basis of applying the established general principles of international law relied upon by Chile to which I have already referred, rather than any specific rule of law relating to immunity from criminal process.

These principles underlie some of the rules of immunity that are clearly established in relation to civil proceedings. It is time to take a closer look at these rules, and at the status immunity that is enjoyed by a head of state ratione personae.

Immunity from civil suit of the State itself.

It was originally an absolute rule that the court of one state would not entertain a civil suit brought against another state. All states are equal and this was said to explain why one state could not sit in judgment on another. This rule was not viable once states began to involve themselves in commerce on a large scale and state practice developed an alternative restrictive rule of state immunity under which immunity subsisted in respect of the public acts of the state but not for its commercial acts. A distinction was drawn between acts done jure imperii and acts done jure gestionis. This refinement of public international law was described by Lord Denning, M.R. in Trendtex Trading Corporation v. Central Bank of Nigeria [1977] 1 Q.B. 529. In that case the majority of the Court of Appeal held that the common law of England, of which international law forms part, had also changed to embrace the restrictive theory of state immunity from civil process. That change was about to be embodied in statute, the State Immunity Act 1978, which gave effect to the European Convention on State Immunity of 1972.

Part I of the Act starts by providing:

 "1. General immunity from jurisdiction

   (1) A state is immune from the jurisdiction of the courts of the United Kingdom except as provided in the following provisions of this Part of this Act."

Part I goes on to make provision for a number of exceptions from immunity, the most notable of which is, by Section 3, that in relation to a commercial transaction entered into by the state.

Part I does not apply to criminal proceedings—Section 16 (4).

The immunity of a head of state ratione personae. An acting head of state enjoyed by reason of his status absolute immunity from all legal process. This had its origin in the times when the head of state truly personified the state. It mirrored the absolute immunity from civil process in respect of civil proceedings and reflected the fact that an action against a head of state in respect of his public acts was, in effect, an action against the state itself. There were, however, other reasons for the immunity. It would have been con