Dr. Aniel de Beer is a research associate to the South African Research Chair in International Law at the University of Johannesburg, South Africa. She is specifically interested in the role of international law in the fight against terrorism. Her book, Peremptory Norms of General International Law (jus cogens) and the Prohibition of Terrorism, explores whether the prohibition of terrorism has obtained jus cogens status under international law. It further considers the interaction between the prohibition of terrorism (and actions taken to fight terrorism) and other norms of international law, such as the prohibition of torture, the right to a fair trial and the prohibition of the interstate use of force. Dr de Beer has published various articles on international terrorism, the use of force and command responsibility under international law. She is also qualified as solicitor in the United Kingdom.