Tim Prenzler is a professor at the University of the Sunshine Coast, Queensland, Australia, where he is program convenor of the Bachelor in Criminology and Justice. He was a chief investigator in the Australian Research Council Centre of Excellence in Policing and Security, based at Griffith University, Brisbane, Australia, where he managed the Integrity Systems Research Program. He was also a member of the School of Criminology and Criminal Justice at Griffith University. He is the author of Police Corruption: Preventing Misconduct and Maintaining Integrity; coauthor, with Adam Graycar, of Understanding and Preventing Corruption; editor of Policing and Security in Practice: Challenges and Achievements; and editor of Professional Practice in Crime Prevention and Security Management. Garth den Heyer is a qualitative researcher whose interests include police organizational reform and performance and police service delivery effectiveness. He is an inspector with the New Zealand Police, a lecturer with Walden University in Minneapolis, Minnesota, and a senior research fellow with the Police Foundation in Washington, DC. He has a doctorate in public policy from Charles Sturt University in Bathurst, New South Wales, Australia. He has published extensively on police reform and is the author of The Role of Civilian Police in Peacekeeping: 1999-2007 and Use of Econometric Modeling and Analysis to Support Operational Policing.