Recent Posts

[Monica Hakimi is the James V. Campbell Professor of Law at Michigan Law School.] I’m extremely grateful to Opinio Juris for hosting this symposium on my recent article on customary international law (CIL). And I’m honored by the fantastic group of contributors. In the article, I aim to dismantle a common conception of CIL—an idea that shapes how many international lawyers think...

This week, we have the pleasure of hosting a robust discussion on Monica Hakimi's latest article, Making Sense of Customary International Law. Abstract: This Article addresses a longstanding puzzle about customary international law (CIL): How can it be, at once, so central to the practice of international law—routinely invoked and applied in a broad range of settings—and the source of...

[Psymhe Wadud is Lecturer in Law, Bangladesh University of Professionals (BUP). She specializes in International and Comparative Law.] There have been informed claims that China’s internal suppression of information and bureaucratic as well as governmental policies exacerbated the novel coronavirus crisis and contributed to its transmission beyond Chinese borders, resulting in transboundary harm. There have been scholarly observations on the violation of the World Health Organization...

[Rosemary Grey is a University of Sydney (Australia) Postdoctoral Fellow, based in the Sydney Law School & Sydney Centre for International Law. Valerie Oosterveld is a Professor at Western Law (Canada) and a member of the Canadian Partnership for International Justice and Rebecca Orsini is a second-year law student at Western Law (Canada) and a graduate of the University of Toronto.] Part 1 of this post discussed...

[Rosemary Grey is a University of Sydney (Australia) Postdoctoral Fellow, based in the Sydney Law School & Sydney Centre for International Law. Valerie Oosterveld is a Professor at Western Law (Canada) and a member of the Canadian Partnership for International Justice and Rebecca Orsini is a second-year law student at Western Law (Canada) and a graduate of the University of Toronto.] Recent months have seen an important shift...

[Danilo Ruggero Di Bella is a lawyer at Bottega Di Bella.] Upon overthrowing a dictatorship, the swift recovery of stolen assets hidden abroad by a dictator is a key concern for every newly established government. At times, a newly constituted government may rely on the voluntary cooperation of foreign state authorities in which stolen assets are located. In other instances, the newly established government may face difficulties...

I am honoured and delighted to announce that I have been appointed Professor of International Law and Security at the University of Copenhagen. The position is based in the Centre for Military Studies (CMS), which is part of the Department of Political Science, and will involve working closely with the Ministry of Defence and the various Danish political parties on...

[Alejandra Muñoz is an International Legal Advisor with a Colombian lawyers' collective, ''Colectivo de Abogados José Alvear Restrepo (CAJAR)'] In February this year, the long awaited first voluntary statement rendered by Colombian army general Mario Montoya Uribe before the country’s Special Jurisdiction for Peace (SJP) sparked a great deal of frustration and disappointment among victims. After refusing to speak entirely on the first day, his declarations on...

A couple of days ago, Iran issued an arrest warrant for Donald Trump, alleging that he is responsible for murder and terrorism in connection with the drone strike that killed General Qassem Soleimani last January. Practical problems aside -- Interpol has already refused to issue a Red Notice for Trump's arrest -- there is an important legal barrier to prosecuting Trump:...

[Eva Buzo is an Australian lawyer and Executive Director of Victim Advocates International. She is completing her PhD on victim participation in international accountability mechanisms at the Faculty of Law at Queensland University of Technology.] Introduction The recent article by Rawan Arraf, director of the Australian Centre for International Justice, ‘Without genuine war crime investigations, Australians could end up in the Hague’ states that unless authorities conducted a...

[John B. Quigley is Emeritus Professor of Law at Moritz College of Law, The Ohio State University.] The annexation, now under consideration by Israel, of land in occupied Palestine is aimed, in part, at bringing many of Israel’s settlements into the territory of Israel. Annexation, however, may bring the unintended consequence of the loss of those very settlements. Much of the land on which the...

Along with 174 other American lawyers and legal scholars, I have signed a statement condemning the Trump administration's Executive Order permitting the US to sanction individuals involved with the ICC's investigation into the situation in Afghanistan. It's quite a list of signatories, including three former US war-crimes ambassadors and a number of former judges and prosecutors at various international criminal...