I would like to thank my colleague Professor James Green, who read and commented on sections of this book. His help and encouragement was much appreciated. I would also like to thank my colleague Dr Katja Samuel for reading and commenting on the proposal for this book. Thanks also to my research fellow Marie Aronsson-Storrier for her assistance in preparing the book for publication. I also wish to thank my interns at the British Institute of International and Comparative Law, who provided research assistance for Part II of the book. And finally my most sincere gratitude to the three people who inspired my passion for this topic: Sir Christopher Greenwood, Associate Professor Chaloka Beyani, United Nations Special Rapporteur on the human rights of internally dispanced persons and Professor Alan Whitehorn. Any errors that remain are, of course, my own.