About the Author
Brandon C. Welsh, PhD is an assistant professor at the Department of Criminal Justice, University of Massachusetts, Lowell. David P. Farrington, Ph.D., F.B.A., is professor of Psychological Criminology at the Institute of Criminology, University of Cambridge and Jerry Lee Research Professor of Criminology at the Department of Criminology and Criminal Justice, University of Maryland. Lawrence W. Sherman Ph.D., is Albert M. Greenfield Professor of Human Relations in the Department of Sociology and Director of the Jerry Lee Center of Criminology and Fels Center of Government, University of Pennsylvania.
