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Home Sources of International Law Archive for category "Customary International Law"

Reconciling new interpretations of the UN Charter with the customary international law on the use of force

Published on November 26, 2019        Author: 

 

In a recent lecture, published as a post on this blog, Professor Dapo Akande analysed the diversity of the rules on the use of force in international law and the implications for the evolution of the law in this area. In this post I wish to address one issue arising from this discussion but not directly addressed in Dapo’s lecture: the impact of changes to the UN Charter on the customary international law rules on the use of force.

In his lecture, Dapo argues persuasively that there are structural difficulties surrounding the evolution of Charter rules, and that these could be avoided if UN members were to interpret the UN Charter through subsequent practice under Article 31(3)(b) VCLT so that a ‘Uniting for Peace’ resolution of the UN General Assembly ‘would be deemed not to be a breach of the prohibition of force under Art. 2(4) in the same way that a Council resolution authorizing force would have that effect.’ However, while this route would avoid the obstacles Dapo discusses that make it difficult to imagine customary international law bringing about a change in the Charter rules on the use of force, it raises the opposite question: how would modification of the Charter rules impact the customary prohibition on force?

As clarified by the ICJ in Nicaragua (Merits, para 179), customary law continues to exist and apply separately alongside even identical treaty provisions. Since the customary and treaty prohibitions exist independently, even if the Charter were to be interpreted so that force authorised through Uniting for Peace was no longer considered a breach of Article 2(4), this interpretation of the Charter wouldn’t automatically change custom to match. A priori, force lawfully authorised by the General Assembly under the Charter would therefore still be in violation of the customary prohibition on force. One could argue that the new treaty rule would simply prevail over the customary prohibition to the extent they conflict, but this seems difficult when the customary prohibition is probably also a jus cogens norm. Indeed, it seems rather that the purported interpretation of the Charter would – by analogy with a new treaty amendment conflicting with jus cogens which would presumably be caught by Article 53 VCLT – be invalid. Read the rest of this entry…

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The Diversity of Rules on the Use of Force: Implications for the Evolution of the Law

Published on November 11, 2019        Author: 

Last month, I had the pleasure and honour to deliver one of the keynote lectures at the Canadian Council of International Law Annual Conference. The theme of the conference was “Diversity and International Law” and I chose to speak about the diversity of rules on the use of force and the implications of that diversity for the evolution of the law. I am pasting the text of my lecture here

In this lecture I wish to address the question whether the law relating to the use of force – as set out in the UN Charter – has been capable, and is capable, of adapting to meet new threats and challenges facing the international community. My focus is not on the substance of the rules but rather on how they change. In particular, I wish to show that we need to be attentive to the nature of diverse nature of the rules in this area as we think about the possibility of their evolution.

Yesterday was the 74th anniversary of the entry into force of the United Nations Charter. It was around the time of the 50th anniversary of the UN that literature began to emerge suggesting that we might think of the UN Charter as a constitution for international society. Whether one agrees with that characterisation or not the Charter shares at least a couple of features with constitutions – it aims to lay down an overarching framework for the community it applies to, and is intended to be an abiding document in terms of duration. This immediately raises questions about whether the document can continue to regulate new and unforeseen challenges. This is particularly true of the Charter rules relating to the use of force.

Areas Where Evolution of the Charter Rules on Use of Force Have Been Called For

One can think of at least four areas where it has been argued that rules of the UN Charter ought to be adapted (or have been adapted, depending on one’s point of view) to meet new challenges : Read the rest of this entry…

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The Jadhav Judgment: Espionage, Carve-Outs and Customary Exceptions

Published on August 8, 2019        Author:  and

On 17 July 2019, the ICJ rendered its judgment in Jadhav. In brief, this case involved an Indian national (Mr Jadhav) who was arrested, tried, and convicted by Pakistan for espionage and terrorism offences and sentenced to death. India made repeated requests to Pakistan to allow consular access to Mr Jadhav during his period of detention, all of which were denied. Before the ICJ, India claimed that Pakistan’s conduct violated the Vienna Convention on Consular Relations (VCCR) 1963.

Freya Baetens’ post on this blog provides a useful overview of the ICJ’s judgment. Yet, an aspect of the ICJ’s decision that requires further analysis is the manner in which the Court approached the status of espionage under consular law and customary international law. The interaction between espionage and international law was relevant to this dispute to the extent that Pakistan averred before the Court that, while Article 36 VCCR grants nationals the right to access consular assistance from their home state while detained by a foreign power, states can deny access where the national in question is accused of espionage.

Article 36 VCCR does not expressly state that the right to access consular assistance can be refused where a national is accused of espionage. Nevertheless, Pakistan justified its decision to refuse consular access to Mr Jadhav on three grounds: (1) an espionage carve-out to Article 36; (2) developments in customary international law subsequent to the conclusion of the VCCR; and (3) the 2008 Agreement on Consular Access between Pakistan and India prevails over the VCCR, which allows states to deny consular access where necessary to maintain national security. While the ICJ rejected all three of Pakistan’s submissions, this post focuses specifically upon the Court’s consideration of grounds one and two. Read the rest of this entry…

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Silence and the Use of Force in International Law

Published on July 18, 2019        Author: , and

States frequently take actions and make statements that implicate international law. But because they do not — and, indeed, could not — express a view on each such act or statement by all other states at all times, silence seems to be the norm, rather than the exception, in international relations.

When states and other international actors do not express their views on a particular incident, issue or statement that implicates international law, what is the legal significance, if any, of their silence? Does it denote acquiescence or quiet protest? Might it not have legal significance at all? Who makes this determination? Who benefits, and who loses, from a finding that a particular silence does or does not yield legal consequences?

Over the years, several scholars — despite some calls for caution — have invoked the silence of states and other international actors as proof of support for particular legal views. This practice has been noticeable and increasingly frequent in jus ad bellum — the field of international law governing the threat or use of force in international relations. For example, writings on the following military actions (among others) invoke silence as having some type of legal significance: Read the rest of this entry…

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A Hidden Reading of the ICC Appeals Chamber’s Judgment in the Jordan Referral Re Al-Bashir

Published on June 6, 2019        Author: 

On 6 May 2019, the Appeals Chamber of the International Criminal Court (ICC) issued the Judgment in the Jordan Referral re Al-Bashir Appeal. It found that Jordan had no ground to refuse to execute the request by the ICC for arrest and surrender of Omar Al-Bashir, the then Head of State of Sudan – a State not party to the Rome Statute.  In this highly controversial judgment, the Appeals Chamber held that ‘[t]here is neither State practice nor opinio juris that would support the existence of Head of State immunity under customary international law vis-à-vis an international court.’ (par. 1, 113) Endorsing the ICC Pre-Trial Chamber I’s 2011 Malawi Non-Cooperation Decision, the Appeals Chamber furthermore held that ‘[t]he absence of a rule of customary international law recognising Head of State immunity vis-à-vis international courts is relevant […] also for the horizontal relationship between States when a State is requested by an international court to arrest and surrender the Head of State of another State.’ (par. 114)  

The Chamber could have ended its judgment on the issue of immunities there, as this finding on customary international law, if correct, would seem to dispose of the matter. However, it decided to also consider the position taken  by Pre-Trial Chamber II in the Jordan Non-Cooperation Decision, that the immunity of the Sudanese President was removed by virtue of the Security Council (SC) resolution referring the situation in Darfur to the ICC.

In this post, I will argue that the Chamber not only confirmed the legal validity of what has been termed the ‘Security Council route’ – as developed in the Jordan & South Africa Non-Cooperation Decisions – but actually upheld that it is such reasoning that must be applied at the horizontal level to displace the immunity of a Head of State of a non-party State. I will show that this conclusion flows from the Joint Concurring Opinion of 4 of the 5 Appeals Chamber judges (Judges Eboe-Osuji, Morrison, Hofmański and Bossa) – constantly referred to in the main Judgment for further elaboration – and the recently issued Q&A regarding the Appeals Chamber Judgment. Read the rest of this entry…

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Right of Access to a Court in Civil Claims for Torture Committed Abroad: The European Court Grand Chamber Decision in Naït-Liman

Published on April 3, 2018        Author: 

The Grand Chamber of the European Court of Human Rights has announced its judgment in the case of Naït-Liman v Switzerland, confirming that the refusal of the Swiss courts to examine a refugee’s civil claim for torture in Tunisia was not a violation of Article 6 § 1 of the European Convention on Human Rights. The decision addresses the concepts of forum of necessity and universal civil jurisdiction, and has important implications for civil claims arising out of wrongful acts that have taken place abroad.

Initial Proceedings

In April 1992, Tunisian national and political activist Abdennacer Naït-Liman was arrested in Italy and flown to Tunis, where he was handed over to members of the Tunisian authorities. Naït-Liman subsequently alleged that on the orders of the then Minister of the Interior, Abdallah Kallel, he was detained for 40 days and brutally tortured with bats, electric shocks, and suspension. He escaped Tunisia in 1993 and travelled to Switzerland with his wife and children, where he was granted refugee status in 1995 and Swiss nationality in 2007.

Naït-Liman learned on 14 February 2001 that Abdallah Kallel was in Switzerland receiving treatment at a hospital, and filed a criminal complaint against him. Kallel was, however, able to leave Switzerland before he was apprehended by the Swiss authorities. Read the rest of this entry…

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Security Council Resolutions as Evidence of Customary International Law

Published on March 1, 2018        Author: 

In 2012 the International Law Commission began to address one of the last major uncodified areas of public international law: how norms of customary law (CIL) are to be identified.  The exercise at the ILC has not been an easy one.  States commenting in 2016 on the Commission’s “draft conclusions” expressed concerns on a variety of issues.  One of the most contentious was the role of international organizations (IOs) in the creation of custom. 

The topic has been the subject of academic conferences at the University of Manchester, the University of Michigan and elsewhere, as well as a growing volume of law review commentary (see here, here, here, here and here).  And in early January, the United States submitted comments on the draft conclusions that were, to put it mildly, opposed to any role for IOs.  Closer to home, Kristen Boon, Isaac Jenkins and I have just published an article on the role of the Security Council in generating evidence of custom related to non-international armed conflicts (NIACs), an area of intense Council involvement. In this post I’ll describe the ILC’s view of IOs, the United States’ response, and then our affirmative arguments specific to the Security Council. Read the rest of this entry…

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The Turkish Operation in Afrin (Syria) and the Silence of the Lambs

Published on January 30, 2018        Author: 

Operation Olive Branch

On 20th January 2018, the Turkish military started to attack the Kurdish-populated region of Afrin in Syria (“Operation Olive Branch“). With its letter to the Security Council of 22nd January 2018, Turkey justified this action as self-defence in terms of Art. 51 UN Charter. The relevant passage of the letter is: “[T]he threat of terrorism from Syria targeting our borders has not ended. The recent increase in rocket attacks and harassment fire directed at Hatay and Kilis provinces of Turkey from the Afrin region of Syria, which is under the control of the PKK/KCK/PYD/YPG terrorist organization, has resulted in the deaths of many civilians and soldiers and has left many more wounded.” (UN Doc. S/2018/53; emphasis added). Two elements are troublesome in this official Turkish justification.

Non-state armed attacks?

First, it is controversial whether armed attacks of the YPG, a non-state actor, suffice to trigger self-defence in terms of Article 51 UN Charter and underlying customary law. The current law (both Charter-based and treaty-based) is in flux, and still seems to demand some attribution to the state from which the attacks originate. (See for a collection of diverse scholarly opinion, ranging from “restrictivists” to “expansionists”: Anne Peters, Christian Marxsen (eds), “Self-Defence Against Non-State Actors: Impulses from the Max Planck Trialogues on the Law of Peace and War”, Heidelberg Journal of International Law 77 (2017), 1-93; SSRN-version in Max Planck Research Papers 2017-17).

The ICJ case-law has not fully settled the question (see for state-centred statements: ICJ, Oil platforms 2003, paras. 51 and 61; ICJ Wall opinion 2004, para. 139). Read the rest of this entry…

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Customary International Law and the Addition of New War Crimes to the Statute of the ICC

Published on January 2, 2018        Author: 

In addition to the activation of the International Criminal Court’s jurisdiction over the crime of aggression (see previous post), the recently concluded Assembly of States Parties (ASP) to the Statute of the ICC, also adopted three amendments adding to the list of war crimes within the jurisdiction of the Court. These new war crimes relate to the use of prohibited weapons in international as well as non-international armed conflicts. However, in the lead-up to the ASP there was controversy regarding the wisdom and even the legality of adding to the list of war crimes. One of the concerns was that there would be fragmentation of the Rome Statute system with different crimes applicable in differing situations to different individuals. This is because under the amendment procedure to the Rome Statute (Art. 121(5)) these new crimes would not apply to nationals of, or conduct on the territory of, non-ratifying states parties. Another concern was that the new crimes (or at least some of them) are, in the view of some states, not criminalised under customary international law and thus not suitable for addition for inclusion in the ICC Statute. It is this latter issue that I focus on this post, though as I will explain later, the issue overlaps with the question of fragmentation of the Rome Statute regime. In this post, I discuss the implications of criminalising conduct under the ICC  Statute which do not amount to customary international law crimes. I take no position on whether the crimes that have been added are, or are not, crimes under customary international law (though I think few would doubt that the use of biological weapons is such a customary international crime), but explain why this is an important question that states are right to pay attention to.

The new war crimes to be inserted into the Rome Statute are as follows (see Resolution ICC-ASP/16/Res.4):

  • Employing weapons, which use microbial or other biological agents, or toxins, whatever their origin or method of production [to be inserted as Art. 8(2)(b)xxvii) and Art. 8(2)(e)(xvi)]
  • Employing weapons the primary effect of which is to injure by fragments which in the human body escape detection by X-rays [to be inserted as Art. 8(2)(b)(xxviii) and Art. 8(2((e)(xvii)];
  • Employing laser weapons specifically designed, as their sole combat function or as one of their combat functions, to cause permanent blindness to unenhanced vision, that is to the naked eye or to the eye with corrective eyesight devices [to be inserted as article 8(2)(b)(xxix) and Art. 8(2)(e)(xviii)].

Read the rest of this entry…

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The Immunity of al-Bashir: The Latest Turn in the Jurisprudence of the ICC

Published on November 15, 2017        Author: 

On 6 July 2017, the Pre-Trial Chamber of the ICC issued a new decision in the case of Omar al-Bashir. The Chamber ruled that South Africa failed to comply with its obligation to arrest the President of Sudan by welcoming him for a summit of the African Union two years earlier. This decision did not come as a surprise because the Court had repeatedly ruled before that al-Bashir does not enjoy immunity from arrest and that all states parties have an obligation to arrest him. What makes the decision curious, however, is that the Chamber again adopted a new position on the immunity of al-Bashir:

  • In 2011, the Chamber found that al-Bashir does not enjoy immunity because of an exception under customary international law for the prosecution of international crimes by an international court like the ICC. According to the Chad and Malawi decisions, no sitting Head of State could ever claim immunity before the ICC (for reactions see: here and here).
  • In 2014, the Chamber revised its position and concluded that the Security Council implicitly waived his immunity in Resolution 1593. Al-Bashir would not enjoy immunity because the Council issued a binding decision under Chapter VII of the UN Charter obliging Sudan ‘to cooperate fully with … the Court’ (for reactions to the DRC decision see: here and here).
  • In it most recent decision of 6 July 2017, the Chamber found that al-Bashir does not enjoy immunity because the Security Council’s referral placed Sudan in a similar position as a state party. Al-Bashir would not possess immunity from arrest because of Article 27(2) of the Statute which provides that immunities ‘… shall not bar the Court from exercising its jurisdiction’.

In this post I examine the Chamber’s most recent decision on the case of al-Bashir and make a number of critical observations. Read the rest of this entry…

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