In particular, he has studied the motives and characteristics of "undetected" rapists - men who rape but who are never prosecuted. He also studies the long term effects of childhood abuse in adult men, and the relationship between early abuse and the later perpetration of interpersonal violence. His research has been published in leading journals in psychology, trauma and violence, and he was the founding editor of the journal, Psychology of Men and Masculinity. In addition to his research and teaching, Dr. Lisak serves as faculty for the National Judicial Education Program, and the American Prosecutors Research Institute, and has served as a consultant to judicial, prosecutor and law enforcement education programs across the country.