Christopher Koper

Christopher Koper

Christopher Koper

Associate Professor

Firearms, violence, and public policy; police and crime control; technology and organizational change in policing; policy and program evaluation

Dr. Christopher S. Koper is an Associate Professor in the Department of Criminology, Law and Society at George Mason University and the Principal Fellow of George Mason’s Center for Evidence-Based Crime Policy.  Dr. Koper holds a Ph.D. in criminology and criminal justice from the University of Maryland and has nearly 30 years of experiencing conducting criminological research at George Mason, the Police Executive Research Forum, the University of Pennsylvania, the Urban Institute, the RAND Corporation, the Police Foundation, and other organizations.  He has written and published extensively on issues related to firearms, policing, federal crime prevention efforts, research methods, and other topics.  Dr. Koper has served as a lead or senior-level investigator for numerous projects funded by the U.S. Department of Justice, including Congressionally-mandated assessments of the 1994 federal assault weapons ban and the federal Community Oriented Policing Services (COPS) program.  He is the co-creator of the Evidence-Based Policing Matrix, a tool used by policing organizations internationally  to visualize research results on police effectiveness and translate those results for practitioners and policymakers.  Dr. Koper’s work on the methods of patrolling crime hot spots (often referred to as the “Koper curve” principle) is also used by numerous police agencies in the United States and abroad.

Current Research

The Evidence-Based Policing Matrix. Online interactive tool available at: Project with Cynthia Lum and Cody Telep.

Evaluating the Crime Control and Cost-Benefit Effectiveness of License Plate Recognition (LPR) Technology in Patrol and Investigations. Project for the National Institute of Justice, U.S. Department of Justice with Cynthia Lum and James Willis. 

The Proactive Policing Lab. Project for the Laura and John Arnold Foundation with Cynthia Lum.

Selected Publications

Koper, Christopher S. William D. Johnson, Jordan L. Nichols, Ambrozine Ayers, and Natalie Mullins. 2017. “Criminal Use of Assault Weapons and High Capacity Semiautomatic Firearms: An Updated Examination of Local and National Sources.” Journal of Urban Health, DOI 10.1007/s11524-017-0205-7. Published online October 2.

Lum, Cynthia and Christopher S. Koper. 2017. Evidence-Based Policing: Translating Research into Practice. Oxford, UK: Oxford University Press.

Koper, Christopher S., Daniel J. Woods, and Daniel Isom. 2016. "Evaluating a Police-Led Community Initiative to Reduce Gun Violence in St. Louis." Police Quarterly 19(2): 115-149.

Koper, Christopher S., Cynthia Lum, and Julie Hibdon. 2015. "The Uses and Impacts of Mobile Computing Technology in Hot Spots Policing." Evaluation Review 39(6): 587-624.

Koper, Christopher S. 2014. “Crime Gun Risk Factors: Buyer, Seller, Firearm, and Transaction Characteristics Associated with Gun Trafficking and Criminal Gun Use.”  Journal of Quantitative Criminology 30(2): 285-315.

Koper, Christopher S., Bruce G. Taylor, and Daniel J. Woods. 2013. “A Randomized Test of Initial and Residual Deterrence from Directed Patrol and Use of License Plate Readers at Crime Hot Spots.” Journal of Experimental Criminology 9(2): 213-244.

Lum, Cynthia, Christopher S. Koper, and Cody Telep. 2011. "The Evidence-Based Policing Matrix." Journal of Experimental Criminology 7(1): 3-26.

Koper, Christopher S. 1995. “Just Enough Police Presence: Reducing Crime and Disorderly Behavior by Optimizing Patrol Time in Crime Hot Spots.” Justice Quarterly 12:649-672.

Courses Taught

CRIM 490 Firearms Law, Policy and Politics (special topics course)

CRIM 781 Justice Program Evaluation