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[Emma Irving is an Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies of Leiden University] The ICC’s most recent arrest warrant, issued on the 15th August 2017, should have us all talking for one important reason: it is the first ICC arrest warrant to be based largely on evidence collected from social media. This was a move that was bound to come, and it aligns the ICC with the realities of many of today’s conflicts. The ICC arrest warrant in question was issued against Mahmoud Mustafa Busayf Al-Werfalli, in the context of the Libya situation. Mr. Al-Werfalli, an alleged commander within the Al-Saiqa Brigade, is accused of having committed or ordered 33 murders in Benghazi or surrounding areas in June 2016 and July 2017. The crimes are alleged to have taken place during the Al-Saiqa Brigade’s participation in Operation Dignity, an operation which began in May 2014 as a coalition effort to fight terrorist groups in Benghazi. The charge of murder as a war crime under Article 8(2)(c)(i) of the Rome Statute is based on seven separate incidents captured in seven separate videos. The Pre-Trial Chamber decision describes the events in these videos, some of which show Mr. Al-Werfalli shooting individuals himself, and some of which show him ordering others to commit executions: Mr Al-Werfalli, wearing camouflage trousers and a black t-shirt with the logo of the Al-Saiqa Brigade, and carrying a weapon, is seen in a video footage shooting with his left hand three male figures in the head (§12) Mr Al-Werfalli is seen speaking into the camera and then raising his left hand in the air and sweeping it down towards the ground in a manner that suggests that he is ordering the two men to proceed with the execution. The men shoot the persons kneeling, who fall on the ground. (§16) The first of the seven videos is stated to have been posted to Facebook, while the other six are simply described as having been posted to social media. It is not clear whether the videos were posted by the Al-Saiqa Brigade itself or by a third party. At least some of the material appears to have been posted by the group itself, as early in the decision the Pre-Trial Chamber notes that the evidence supporting the application for the arrest warrant comes from ‘social media posts by the Media Centre of the Al-Saiqa Brigade’ (§3). That the ICC has turned to social media evidence (also referred to as open-source evidence) is significant. In many of today’s conflicts

Snapshot of two days in the life of the ICC. On Tuesday, the ICC issued a new arrest warrant in the Libya situation -- for Mahmoud al-Werfalli, a commander in the so-called Libyan National Army (LNA), which defected from the Libyan army during the revolution and is currently vying for power with the UN-backed Government of National Accord (GNA). The arrest warrant represents...

Call for Papers: The Irish Yearbook of International Law is now accepting submissions for the next Volume (Volume XIII (2018)). Edited by Professor Siobhán Mullaly (incoming at NUI Galway) and Professor Fiona de Londras (University of Birmingham) and published by Hart Publishing, the Yearbook is internationally peer reviewed and publishes longer and shorter articles on all areas of international law. The Irish Yearbook of International...

Leiden University’s The Hague Program for Cyber Norms is inviting an open consultation on how to best implement the UN Group of Governmental Experts’ (UN GGE) recommendations on responsible State behavior in cyberspace. Partner in these consultations is the ICT4Peace Foundation. The Call for commentary and implementation guidelines can be found here. To participate, please send your questions, comments, recommendations to Mr....

I have happy news to report: after a groundswell of support, my student Tamara Tamimi has been granted a visa to attend her SOAS graduation. Apparently her Facebook post garnered more than 700 reactions, leading to letters and emails flooding into the Home Office. I want to thank each and every person who supported Tamara -- whether through a letter, an...

I opened Facebook just now to find the following post from my brilliant student at SOAS, Tamara Tamimi, whose MA dissertation -- written under my supervision -- received the law school's award for the best MA dissertation of the year: I am angry, frustrated and sad. I was denied entry clearance into the UK to attend my graduation from SOAS University of...

[Alexandre Skander Galand is a Newton Postdoctoral Researcher at the Center for Global Public Law, Koç University; Ph.D. in Law (EUI).] In a post published in September 2015, I asked whether the International Criminal Court (ICC) was in need of support to clarify the status of Heads of States’ immunities. My post followed the ICC Pre-Trial Chamber II (PTC II) request for submissions from...

[Dr. Aaron Matta is an expert in international law with working experience at International Courts. He also recently co-founded The Hague Council on Advancing International Justice, a network for and with practitioners, academics, and policymakers in the area of international justice. I would like to thank Dr. Philip Ambach and Anda Scarlat for their feedback on earlier drafts of this commentary.The...

[Gregory Gordon is Associate Professor of Law, Associate Dean for Development and External Affairs and Director of the Research Postgraduates Programme at The Chinese University of Hong Kong Faculty of Law.  He was formerly a prosecutor with the International Criminal Tribunal for Rwanda and the U.S. Department of Justice, Office of Special Investigations.] I am grateful to Opinio Juris, especially organizers Chris...

[David J. Simon is the Director of the Genocide Studies Program at Yale University.] It is something of a cliché to call a newly published book an “achievement.”  I can think of no better word, however, to describe Gregory Gordon’s Atrocity Speech Law.  This is the rare book on legal doctrine that is engaging and digestible to lawyers, legal academics, and non-lawyers...

[Mark A. Drumbl is the Class of 1975 Alumni Professor of Law and Director, Transnational Law Institute at Washington and Lee University.] Atrocity Speech Law is a hefty book. It is, as Professor Gordon himself describes it, a ‘tome’. Atrocity Speech Law is rigorous and ambitious: packed with information, breathtakingly detailed, brimming with integrity, and vivified by important themes of law...

[Roger S. Clark is the Board of Governors Professor of Law at Rutgers Law School.] Several important themes are developed alongside one another in Gregory Gordon’s remarkable book on the activity for which he coins the term “atrocity speech law.”  They are captured largely in his sub-title “Foundation, Fragmentation and Fruition” and in his summary of the “fruition” points at pp....