Stuart Casey-Maslen is Honorary Professor of International Law at the University of Pretoria, where he teaches the law of armed conflict, international human rights law, international counterterrorism law, jus ad bellum, and disarmament law. He also has led postgraduate courses in public international law at Sciences Po in Paris and the Swedish Defence University in Stockholm. An academic and practitioner with thirty years' experience in disarmament, he holds a doctorate in international humanitarian law and master's degrees in international human rights law and forensic ballistics.