William A. Schabas is professor of international law at Middlesex University in London, emeritus professor of international criminal law and human rights at Leiden University and distinguished visiting faculty at the Paris School of International Affairs, Sciences Po. He is also professor emeritus at the National University of Ireland Galway and honorary chairman of the Irish Centre for Human Rights.
He is the author of more than twenty books in the fields of human rights and international criminal law, his most recent being The Customary International Law of Human Rights and the published version of the course he delivered at the Hague Academy of International Law in January 2021 entitled Relationships between International Criminal Law and Other Branches of Public International Law. Professor Schabas prepared the quinquennial reports on the death penalty for the United Nations Secretary-General in 2020, 2015 and 2010. He was a member of the Sierra Leone Truth and Reconciliation Commission. Professor Schabas is an Officer of the Order of Canada and a member of the Royal Irish Academy, a laureate of the Vespasian Pella Medal, and he holds several honorary doctorates.