LLM in International Human Rights Law, University of Notre Dame Law School, 2003. Assistant Professor, Leiden University College, Den Hague, the Netherlands, 2013-. Prosecutor, United Nations International Criminal Tribunal for the Former Yugoslavia (ICTY), The Hague, 1998-2010. Visiting Professor in the Faculty of Law and Economics, Utrecht University and Leiden University College, The Netherlands, 2012-2013. Legal adviser to the United Nations Commission of Inquiry for Syria, 2011-2012. Leverhulme Visiting Professor and the Yorke Distinguished Visiting Fellow, Faculty of Law at the University of Cambridge, 2010-2011, 2011–2012.