Recent Posts

[Benjamin Meret is a PhD Candidate and teaching assistant at the University of Geneva. He holds an MA in international law from the Geneva Graduate Institute of international and development studies.] On the evening of January 9th, Ecuadorian President Daniel Noboa declared that the country’s armed forces were in an internal armed conflict against various criminal groups. This followed several critical...

[Lucas Carlos Lima is a professor of international law at Universidade Federal de Minas Gerais] It was expected that the advisory opinion on the climate emergency and human rights requested by the Republic of Colombia and the Republic of Chile to the Inter-American Court of Human Rights (‘IACtHR’ or ‘Court’) would attract a high level of participation. While the 2017 Advisory...

[Gerhard Kemp is Professor of Law at UWE Bristol and Extraordinary Professor of Public Law at Stellenbosch University.  Victor Kattan is Assistant Professor in Public International Law at the University of Nottingham School of Law.] The Republic of South Africa deposited its instrument of accession to the International Convention on the Suppression and Punishment of the Crime of Apartheid (‘Apartheid Convention’) on...

[Javier Eskauriatza is an Assistant Professor in criminal law at the University of Nottingham School of Law. He is also the Co-Director of the Criminal Justice Research Centre, and the Convener of the Criminal Law and Criminal Justice stream for the Society of Legal Scholars.] On 24 April 2024, twelve U.S. Senators (Republican Party) sent a letter to Karim Khan, the...

[Patricio Trincado Vera is a Research Assistant at the Transboundary Legal Studies Department at Groningen University.] March 2024 was a month with significant advances in the area of human rights and environmental protection on a regional level. The European Court of Human Rights has been at the centre of the debate with the three judgements on climate change and environmental issues...

[Full disclosure: I serve as the Prosecutor's Special Adviser on War Crimes.] In this post I want to provide an overview of the Rome Statute's principle of complementarity. The principle has been consistently misrepresented by politicians and journalists since word first got out that the Prosecutor, Karim Khan KC, intended to seek arrest warrants in the Palestine situation not only for...

[Megan Karlshøj-Pedersen is a Policy Specialist at Airwars, working across the U.K., U.S., the Netherlands and other European countries. Jessica Dorsey is an Assistant Professor of International and European Law at Utrecht University and the Managing Editor of Opinio Juris. Both authors are part of the civil society and academic consortium advising the Dutch Ministry of Defence described in this...

[Megan Karlshøj-Pedersen is a Policy Specialist at Airwars, working across the U.K., U.S., the Netherlands and other European countries. Jessica Dorsey is an Assistant Professor of International and European Law at Utrecht University and the Managing Editor of Opinio Juris. Both authors are part of the civil society and academic consortium advising the Dutch Ministry of Defence described in this...

[Marion Sandner is a doctoral researcher at Hasselt University and University of Antwerp, Belgium. Dr Koldo Casla is a senior lecturer in International Human Rights Law at Essex Law School and Director of Essex Human Rights Centre Clinic, UK.] The word solidarity is no stranger to the legal and political discourse surrounding human rights, and it features in various international human...

[Ignacio Portela Giráldez is a Ph.D. student researching novel climate litigation pathways under the UN Convention on the Law of The Sea. He is a teacher of International and Political Studies at the University of New South Wales (Canberra) and lecturer in International Environmental Protection at the Open University of Catalonia.] The European Court of Human Rights (ECtHR) has finally ruled...

[Raelee Toh is an undergraduate law student at the Singapore Management University Yong Pung How School of Law] Introduction   Although there are several conceptions of the clean hands doctrine (for example, ex turpi causa (“an action cannot arise from a dishonourable cause”), ex injuria jus non oritur (“illegal acts do not create law”) and ex delicto non orituractio (“an unlawful act...

[Miguel Lemos is an Assistant Professor at the Faculty of Law, University of Coimbra] On 28 February 2024, Ukraine’s Supreme Court decided that only persons who play a “decisive role” in an aggressive state policy and those “directing” aggressive military operations are “capable of committing the crime of aggression” (all references to the judgment of the Supreme Court can be found...