Hans Toch, PhD, is Distinguished Professor Emeritus at the University at Albany of the State University of New York, where he is affiliated with the School of Criminal Justice. He obtained his PhD in social psychology at Princeton University, has taught at Michigan State University and Harvard University, and in 1996, served as the Walker-Ames Professor at the University of Washington, Seattle. Dr. Toch is a fellow of both APA and the American Society of Criminology. In 1996, he acted as president of the American Association of Correctional Psychology. He is a recipient of the Hadley Cantril Memorial Award (for Men in Crisis), the August Vollmer Award of the American Society of Criminology for outstanding contributions to applied criminology, the Prix DeGreff from the International Society of Criminology for Distinction in Clinical Criminology, and the Research Award of the International Corrections and Prison Association. Dr. Toch's research interests range from mental health problems and the psychology of violence to issues of organizational reform and planned change. His books include The Social Psychology of Social Movements (1965, 2013); Reforming Human Services: Change Through Participation (with J. Douglas Grant, 1982); Living in Prison: The Ecology of Survival (1992); Mosaic of Despair: Human Breakdowns in Prison (1992); The Disturbed Violent Offender (Rev. ed., with Kenneth Adams, 1994); Police Violence (with William Geller, 1996); Corrections: A Humanistic Approach (1997); Crime and Punishment (with Robert Johnson, 2000); Acting Out: Maladaptive Behavior in Confinement (with Kenneth Adams, 2002); Stress in Policing (2002); Police as Problem Solvers: How Frontline Workers Can Promote Organizational and Community Change (2005); Cop Watch: Spectators, Social Media, and Police Reform (2012); and Organizational Change Through Individual Empowerment: Applying Social Psychology in Prisons and Policing (2014).