Dr Charles Katz received his Ph.D. in Criminal Justice from the University of Nebraska at Omaha. He is currently an Associate Professor of Criminal Justice and Criminology at Arizona State University. Dr Katz has co-authored or co-edited two previous books and has been published in several scholarly journals such as Criminology, Justice Quarterly, and Crime and Delinquency. Dr Katz has conducted research in over 20 police agencies across the United States as well as several state and federal agencies.