James Willis is a professor in the Department of Criminology, Law and Society at George Mason University. He earned his B.A. in Administration of Justice from The Pennsylvania State University and Ph.D. in Sociology from Yale University. His research focuses on police organizational change, discretion, and technology. He has published on Compstat, community policing, the police craft, technological change, and police reform. He is a recipient of George Mason University’s Teaching Excellence Award, and in 2008 he and his coauthors received the Law and Society Association’s article prize for a paper they published on Compstat.