Simon Chesterman is Global Professor and Director of the New York University School of Law Singapore Programme, and Vice Dean and Professor of Law at the National University of Singapore. His books include You, The People: The United Nations, Transitional Administration, and State-Building (Oxford University Press, 2004) and Just War or Just Peace? Humanitarian Intervention and International Law (Oxford University Press, 2001).
Chia Lehnardt is a research fellow at Humbolt University in Berlin. From 2005-2006 she was responsible for the research project on private military companies at the Institute for International Law and Justice (IILJ), New York University School of Law. Educated in Berlin, Oxford, Florence, and New York, she has previously worked as a consultant to the IILJ, at the German Federal Parliament, and with a law firm specializing in public law.