Professor Brandon C. Welsh, Ph.D. is the Director of the Cambridge-Somerville Youth Study and is a Professor in the School of Criminology and Criminal Justice at Northeastern University (Canada). His research and teaching focus on the prevention of delinquency and crime, with an emphasis on community, developmental, and situational approaches, and evidence-based social policy. Dr. Welsh is an author or editor of over 10 books, including The Oxford Handbook of Crime Prevention, Experimental Criminology: Prospects for Advancing Science and Public Policy, and The Future of Criminology. He was a member of the OJJDP Study Group on Very Young Offenders, and the NIJ Study Group on Transitions from Juvenile Delinquency to Adult Crime, and has served as a consultant to the British Home Office, the United Nations Office on Drugs and Crime, Canada’s National Crime Prevention Centre, and the International Centre for the Prevention of Crime in Montreal.