Matteo Crippa is an international lawyer specialized in the start-up and operational phases of international and internationalized criminal tribunals, with additional expertise in transitional justice, rule of law and maritime piracy, particularly in Africa and Asia. He holds a Degree Law from the Catholic University of Milan, Italy. From 2008 to 2017 he served as Legal Officer and Greffier in the Trial Chamber of the Extraordinary Chambers in the Courts of Cambodia, as part of the United Nations Assistance Mission to Khmer Rouge Trials, in Phnom Penh, Cambodia. From 2003 to 2007, he worked as legal officer in the Trial Chamber of the Special Court for Sierra Leone, in Freetown, Sierra Leone. He has other previous experience working with the United Nations Development Programme in Baku, Azerbaijan, and the International Criminal Tribunal for Rwanda in Arusha, Tanzania. He has lectured on international criminal law at the Royal University of Law and Economics, in Phnom Penh, Cambodia.