Jérôme de Hemptinne is a lecturer in international humanitarian law at the Université catholique de Louvain, Université de Strasbourg and the Université de Lille. His research focuses on modes of liability for international crimes, the qualification of armed conflicts and institutional aspects of international criminal courts and tribunals. He has worked at the Special Tribunal for Lebanon as a senior legal officer, the Office of Legal Counsel of the UN in New York and the International Criminal Tribunal for the former Yugoslavia, where he notably acted as Chef de Cabinet for the President.