Cynthia Lum is a Professor of Criminology, Law and Society at George Mason University in Fairfax, Virginia. She is also the Director of the Center for Evidence-Based Crime Policy, one of the founding members of the Division of Policing in the American Society of Criminology, and the North American Editor of Policing: A Journal of Policy and Practice (Oxford). She ... Read morespecializes in the areas of policing, security, and evidence-based crime policy, and served as a patrol officer and detective in the Baltimore City Police Department. Christopher S. Koper is a Professor of Criminology, Law and Society at George Mason University in Fairfax, Virginia. He is also the principal fellow of the Center for Evidence-Based Crime Policy at George Mason and an associate editor of the Journal of Experimental Criminology (Springer). Dr. Koper was formerly the director of research at the Police Executive Research Forum and a member of the research advisory board of the Police Foundation. His research in policing has covered crime control strategies, the effects of technology, community policing, hiring and retention, and the institutionalization of evidence-based practices. Show Less