Anna Costanza Baldry is Professor of Social and Forensic Psychology at the Department of Psychology, Università degli Studi della Campania Luigi Vanvitelli, Italy.
Catherine Blaya is Professor of Education Science at Lausanne University of Teacher Education, Switzerland, and Chair of the International Observatory of Violence in Schools.
David P. Farrington, OBE, is Emeritus Professor of Psychological Criminology at the Institute of Criminology, Cambridge University, UK.