He teaches the course International Criminal Law at the University of Ottawa. He is Senior Counsel, Manager of the Law with the Crimes against Humanity and War Crimes Section of the Department of Justice, Canada. He was a visiting professional with the International Criminal Court in 2005 while also serving as Special Counsel and Policy Advisor to the Modern War Crimes Section of the Department of Citizenship and Immigration between 1998 and 2002.
His area of expertise lies with the law related to organized crime, terrorism, genocide, war crimes and crimes against humanity, especially in the context of immigration and refugee law. He has written over 30 articles as well his book, The Criminal Refugee: The Treatment of Asylum Seekers with a Criminal Background in International and Domestic Law, exploring these research interests and has lectured on the same topics in North and South America, Europe, Africa, the Middle East, Australia and New Zealand.