Supervises Constitutional Law and International Law.

State Responsibility for International Terrorism (Oxford University Press (June 2011))

"Tal Becker: Terrorism and the State" 19(2) Revue québécoise de droit international (2006) 399-405

"Christophe Martin: Les règles internationales relatives à la lutte contre le terrorisme" 19(2) Revue québécoise de droit international (2006) 407-414

"The Use of Force against Terrorists: A Reply to Christian J. Tams" 20(4) EJIL (2009) 1049-1055

"Back to Basics: Necessity, Proportionality, and the Right of Self-Defence against Non-State Terrorist Actors" 56(1) ICLQ (2007) 141-156