Center for Justice Leadership and Management
George Mason University

Stephen D Mastrofski

Stephen D Mastrofski

Stephen D Mastrofski

University Professor

Police discretion, police organizations and their reform, systematic field observation methods in criminology

Stephen Mastrofski is University Professor in the Department of Criminology, Law and Society and Director of the Center for Justice Leadership and Management at George Mason University.  His research interests include police discretion, police organizations and their reform, and systematic field observation methods in criminology.  He has published extensively on the application of systematic observation methods to street-level police work.  For several years Professor Mastrofski led a large team of researchers supporting and evaluating the transformation of the Trinidad and Tobago Police Service.  He is currently engaged in research projects on measuring the quality of street-level policing, assessing the role of first-line police supervisors, and measuring police organization development and change.  He is a co-principal investigator on the NIJ-funded National Police Research Platform project. He has served on the editorial boards of seven criminology and criminal justice journals, currently serving on the boards of two international policing journals.  He has been a Visiting Fellow at the National Institute of Justice and the Office of Community Oriented Policing and has consulted for a variety of public and private organizations.  In 2000 he received the O.W. Wilson Award from the Academy of Criminal Justice Sciences for education, research, and service on policing.  He served on the National Academy of Sciences panel on Police Services and Practices that published the 2004 book, Fairness and Effectiveness in Policing:  The Evidence.  In 2008 he and his coauthors received the Law and Society Association’s article prize for their article using different organizational theories to explain Compstat’s implementation as a police reform.  In 2010 he was elected a Fellow of the American Society of Criminology. 

Current Research

2010-present.  Principal Investigator.  Measuring the Craft of Law Enforcement:  What Is Good Policing?  Center for Justice Leadership and Management, George Mason University.

2008-present.  Co-principal Investigator.  National Police Research Platform.   National Institute of Justice.

2004-2011.  Principal Investigator.  The Trinidad and Tobago Police Service Project.  Ministry of National Security, Trinidad and Tobago.

Selected Publications

Mastrofski, Stephen D., Tal Jonathan-Zamir, Shomron Moyal, and James J. Willis. Forthcoming. “Predicting Procedural Justice in Police-Citizen Encounters.” Criminal Justice and Behavior.

Jonathan-Zamir, Tal, Stephen D. Mastrofski, and Shomron Moyal. 2015. “Measuring Procedural Justice in Police-Citizen Encounters.” Justice Quarterly 32(5):845-871.

Willis, James J. and Stephen D. Mastrofski. 2014. “Pulling Together: Integrating Craft and Science.” Policing:A Journal of Policy and Practice 8(4):321-329.

Courses Taught

CRIM 401  Policing in America

CRIM 510  Policing in a Democratic Society

CRIM 742  Leadership in Justice and Security Organizations

CRIM 795  Innovations in Policing