Janja Lalich, Ph.D. is a researcher, author, and educator specializing in self-sealing, or closed, systems (cults, human trafficking, situations of coercive influence and control, ideological extremism), with a particular focus on recruitment, indoctrination, and methods of influence and control. She is Professor Emerita of Sociology at California State University, Chico and has been studying the social psychology of controversial groups and exploitative and abusive relationships for 30+ years. Dr. Lalich has written and lectured extensively, has advised the international intelligence community on extremism and indoctrination, and has served as consultant and expert witness in civil and criminal cases.