Tracing Consensus in the 2011 and 2016-2017 Plenary Debates

The first Special Rapporteur on the topic was of the opinion that “it is difficult to talk of exceptions to immunity as having developed into a norm of customary international law, just as, however, it is impossible to assert definitively that there is a trend toward the establishment of such a norm.”Footnote ⁴ He did not find any of the principal arguments in support of an international crimes exception convincing.Footnote ⁵ Further restrictions on immunity de lege ferenda were furthermore not “desirable,” he concluded, because they could “impair … friendly international relations.”Footnote ⁶ At best, he wrote, “the Commission could consider, alongside the codification of customary international law currently in force, the question of drawing up an optional protocol or model clauses on restricting or precluding the immunity of State officials from foreign criminal jurisdiction.”Footnote ⁷

The Report triggered responses along three distinct lines. Of those Commission members who formulated a substantive response,Footnote ⁸ four broadly agreed with the approach and conclusions of the Special Rapporteur.Footnote ⁹ Of those that were critical, four, maybe five, members were of the opinion that there were strong arguments for the ILC to support the international crimes exception, not as a codification of lex lata but as a matter of progressive development,Footnote ¹⁰ and thirteen members criticized the approach of the Rapporteur to identifying the lex lata on the subject.Footnote ¹¹ While there were distinct differences of opinion within this third group, these members all seemed to argue that the ILC should adopt a different concept of international law than the “hyper-Westphalian concept”Footnote ¹² presented by the Special Rapporteur. Nine members of this third group had no doubts that the ILC could adopt the international crimes exception within the realm of existing customary international law,Footnote ¹³ while four were more tentative in their appraisal.Footnote ¹⁴ According to some members, international crimes did not belong to the functions of the state, or were not official acts.Footnote ¹⁵ Other members reasoned in terms of a clash between immunity and human rights and international criminal law, which had to be decided in favor of the latter norms in view of the hierarchically superior status of jus cogens.Footnote ¹⁶ Yet others limited their reasoning to treaty law, arguing that treaties concerning the suppression of international crimes should be interpreted as not allowing for the defense of functional immunity.Footnote ¹⁷ A couple of members in the third group did point out that an international crimes exception opened the door to abuse and politically inspired prosecutions and that any exception should go hand-in-hand with the adoption of adequate safeguards.Footnote ¹⁸

In view of the critical reception of the Second Kolodkin report, the new Special Rapporteur decided to revisit the issue of an international crimes exception.Footnote ¹⁹ She proposed to “analyse the connection between international crimes and the immunity of State officials from foreign criminal jurisdiction, from two separate perspectives: (a) the existence of an international custom marking the contours of such limitation or exception; and (b) the systematic recognition of international crimes as a limitation or exception to immunity.”Footnote ²⁰ Within the first perspective, the Rapporteur argued that an inductive analysis of state practice and opinio juris allowed the conclusion that “the commission of international crimes may indeed be considered a limitation or exception to State immunity from foreign criminal jurisdiction based on a norm of international customary law.”Footnote ²¹ Next, the Rapporteur shifted to deductive reasoning, or to “a systemic analysis of the relationship between immunity and international crimes in contemporary international law” in order to “show … that there are various arguments in favor of such a norm,”Footnote ²² “whether or not it is concluded that international custom establishes such a limitation or exception.”Footnote ²³

This Report triggered heated debates within the Plenary, spreading out over two sessions.Footnote ²⁴ Again, responses divided along three principal lines of arguments.Footnote ²⁵ Only four, maybe five, members of both the 2016 and 2017 ILCFootnote ²⁶ expressed unqualified support for the approach and the conclusions of the Special Rapporteur. Six members of the 2016 ILCFootnote ²⁷ and thirteen of the 2017 ILCFootnote ²⁸ expressed support for the inclusion of the “international crimes” exception as a matter of progressive development. In this group, there were members who explicitly rejected a lex lata analysis (three members of the 2016 ILCFootnote ²⁹ and six members of the 2017 ILCFootnote ³⁰); two members in both the 2016 and 2017 ILC who did not do so, but who did state that they regarded the exception to constitute progressive development;Footnote ³¹ four members of the 2017 ILC who were of the opinion that codification and progressive development elements in the ILC's work cannot be neatly distinguished but who acknowledged that the exception ventured into the progressive development mandate;Footnote ³² and even members who said that the Rapporteur herself had admitted that the exception was not part of existing law.Footnote ³³ The response of nine members of the 2016 ILCFootnote ³⁴ and eight of the 2017Footnote ³⁵ ILC was overall, and at times scathingly, critical. In their view, the proposed exception was not part of customary international law, there was not even a trend in that respect, and the exception was not even desirable as a matter of progressive development.Footnote ³⁶ Some of the critics of Draft Article 7 were of the opinion that it should have been discussed in tandem with the procedural provisions and safeguards to be proposed in the Sixth Report in 2018.Footnote ³⁷ While several of the members who voted in favor of the draft article equally underlined the need to put in place procedural guarantees to prevent politically motivated prosecutions,Footnote ³⁸ these members did not consider this to stand in the way of referral of Draft Article 7 to the Drafting Committee.

So, where in 2011 57 percent of the members who participated in the debate expressed support for adopting some form of “international crimes” exception de lege lata,Footnote ³⁹ in 2017 that support had dwindled to 21 percent.Footnote ⁴⁰ Almost 70 percent of those who spoke out in favor of Draft Article 7 in 2017 did so on the understanding that the Commission was engaging in progressive development of the law.Footnote ⁴¹ Add to that the members who rejected the draft article altogether, and 78 percent of the members did not accept that the exception is part of existing customary international law.

This fact is however nowhere explicitly recorded. The summary of the general debate in the report on the work of the sixty-ninth session merely indicates that “a number of members,” “several members,” or “some members” expressed a certain opinion.Footnote ⁴² As a concession to the critical members, the Commentary came to state that “Draft article 7 lists crimes under international law in respect of which immunity from foreign criminal jurisdiction ratione materiae shall not apply under the present draft articles,”Footnote ⁴³ but it takes a particularly astute reader to appreciate that as a caveat. Similarly, the acknowledgement in the Commentary that with Draft Article 7 the Committee is pursuing “its mandate of promoting the progressive development and codification of international law by applying both the deductive method and the inductive method”Footnote ⁴⁴ is hardly informative.

Making Sense of the Conservative Turn

The shifting majorities may in theory be explained by the changing composition of the ILC—the 2011 and 2017 ILC share just fourteen members. Also, the still explorative nature of the 2011 debates could help explain the shift. It is often noted that the ILC, as a subsidiary organ of the UN General Assembly, “operates in a specific context, driven mainly by orthodox attitudes toward international law,”Footnote ⁴⁵ and a common piece of advice for the ILC is not to take “great leaps forward” so as to ensure state acceptance of its work.Footnote ⁴⁶ With that in mind, perhaps it was always to be expected that the ILC would in the end proceed more cautiously than, for example, the Institut de Droit International, which explicitly adopted the “international crimes” exception de lege lata in 2009.Footnote ⁴⁷ However, if that were the case, one would expect the ILC to make clear the progressive nature of the draft article. Moreover, as Roger O'Keefe cautioned in 2015, “there is little diplomatic appetite for foreign prosecutions for alleged international crimes of state officials,”Footnote ⁴⁸ not even when presented as a proposal for reform.

At least part of the explanation may stem from the argumentation advanced in support of Draft Article 7 in the Fifth Report. The attempt to ground the exception in state practice and opinio juris must already have put members on guard concerning the methodological soundness of the reasoning of the Special Rapporteur. But the bigger problem lies with the second leg of the argumentation. The various arguments—jus cogens, access to justice, obligation to prosecute—were presented as a potpourri that might not independently, but at least when taken together constitute “sufficient grounds … to conclude that the commission of international crimes may constitute a limitation or exception to the immunity of State officials from foreign criminal jurisdiction.”Footnote ⁴⁹

While presented as “systemic interpretation,” the Report does not succeed in explaining the exception in terms of interpretation of existing customary international law. This is mainly because the Report does not take an unambiguous position on the rationale for the rule of functional immunity, leaving its relation to the development of concepts like individual responsibility and universal jurisdiction obscure. This is reflected in the conclusion on the second leg of the argumentation: “Whether or not there is a customary norm defining international crimes as limitations or exceptions to immunity,” the Rapporteur writes, “a systemic analysis of the relationship between immunity and international crimes in contemporary international law shows that there are various arguments in favour of such a norm.”Footnote ⁵⁰ Therewith, the arguments slip out of the interpretation framework into the muddy waters of policy arguments, and the exception appears to be postulated as a rule of lex lata on the basis of abstract principles.

In addition, Draft Article 7 should not have been severed from the issue of procedural safeguards. Discussing them in tandem would in all likelihood have reduced resistance to the article, but more importantly, when the “international crimes” exception is formulated in terms of systemic interpretation of the rule of functional immunity and the concepts of individual responsibility for international crimes, universal jurisdiction over international crimes, and the obligation to prosecute international crimes, the limits on the exercise of universal jurisdiction by national courts are arguably part and parcel of the scope of the exception.