Jamie Williamson a British citizen, served as the legal advisor for the Washington Delegation of the International Committee of the Red Cross (ICRC). In this capacity, he was responsible for legal support to the ICRC activities in the U.S. and Canada, with particular focus on Guantanamo and military operations in Afghanistan and Iraq. From 2005 until assuming his present functions, he was the ICRC regional legal advisor based in Pretoria, South Africa, and assisted governments and international organizations in southern and eastern Africa and the Indian Ocean on the implementation of international humanitarian law, weapons treaties (landmines, biological, chemical, conventional), and criminal repression for war crimes, crimes against humanity, and genocide.
Professor Williamson also has extensive experience in the field of international criminal justice, having previously served with the UN ad hoc international criminal tribunals in Tanzania and the Netherlands, and the Special Court for Sierra Leone, where he worked on the first international judgments on the crimes of genocide and war crimes in noninternational armed conflicts. From 2002 to 2005, Williamson headed the legal support section of the ICTR Appeals Chamber based in The Hague. He has published numerous papers on repression of war crimes, international justice, and the challenges to international humanitarian law in modern day conflicts.