Torsten Stein is Professor of International, European Union and Comparative Constitutional Law and Director of the Institute of European Studies (Law Department) since 1991. Before, he spent many years as Senior Research Fellow at the Max-Planck-Institute of Comparative Public and Public International Law, Heidelberg (Germany), and as Professor at the Heidelberg Law Faculty. He is the Secretary General of the German Branch of the International Law Association (ILA) and member of ILA’s Executive Council. He was Rapporteur of ILA’s International Committees on “Legal Problems of Extradition in Relation to Terrorist Offences” and on “International Law before National Courts” and is currently Chairman of ILA’s Committee on the International Criminal Court. He has published several books and numerous articles in his fields of law and is the editor of a European Law Journal and of a series of monographs on European Union Law. Being also a Colonel in the German Air Force Reserve, he takes in his writings special interest in legal problems relating to the military.