His research focuses on the role of the police in crime prevention with a particular emphasis on the use of strategies, tactics, and organizational policies. He has served as a principal investigator for a number of projects across various urban police agencies, and has worked to develop rigorous evidence regarding the most viable, effective, and efficient practices that police have used to address serious crime problems. His research has been published in Crime and Delinquency, Criminology and Public Policy, Journal of Criminal Justice, Journal of Experimental Criminology, Journal of Quantitative Criminology, Justice Quarterly, as well as evaluation and public health journal outlets. He received his doctorate from the School of Criminal Justice at Michigan State University.