Cathleen Powell obtained her B.A. and LL.B. degrees at the University of Cape Town, her LL.M. at the Humboldt University in Berlin, Germany and her SJD from the University of Toronto in Canada. She teaches constitutional law and international law, and researches these areas as well as international criminal law and the law of international organisations. Her recent publications focus on terrorism and its interface with other disciplines, including criminal law, constitutional law, international human rights law and the United Nations. She served on the panel of foreign experts which commented on China's Emergency Law and took part in an advisory panel to a United Nations General Assembly committee drawing up guidelines to states on terrorism and human rights. Her doctorate explores the powers of the United Nations Security Council through the lens of the legal philosophy of Lon Fuller and its application to international law by Jutta Brunnee and Stephen Toope.