Travis Hirschi

Travis Hirschi is professor emeritus of sociology at the University of Arizona, USA. He is past president of the American Society of Criminology and winner of its Edwin H. Sutherland Award. His works include Delinquency Research, Causes of Delinquency, and Generality of Deviance. John H. Laub is professor of criminology and criminal justice at the University of Maryland, College Park, USA. He is also an affiliated scholar at the Henry A. Murray Center at the Radcliffe Institute for Advanced Study at Harvard University, USA.