Forced migration is a global issue. About 34 million of the world's inhabitants were identified in 2010 by the United Nations High Commissioner for Refugees as either refugees, internally displaced persons, asylum seekers or stateless people. Systematic inquiries are urgently needed to understand and improve the circumstances in which these people live, and to guide national and international policies and programs. However, there are many ethical complications in conducting research with uprooted people, who have often been exposed to persecution and marginalisation in conflict situations, refugee camps, immigration detention settings, and following resettlement. This book brings together for the first time key scholars across a range of disciplines including anthropology, bioethics, public health, criminology, psychology, socio-linguistics, philosophy, psychiatry, social policy and social work to discuss the ethical dimensions, challenges and tensions of such research. It encompasses the theoretical, conceptual, practical, and applied aspects of research ethics, while integrating different disciplinary perspectives. It is intended as a resource not only for researchers, students and practitioners but also for those conducting cross-cultural research more broadly. Many of its arguments, examples and concerns are pertinent to research with other vulnerable or marginalised populations.