Selected publications are available for download as PDF files below. These files are made available to facilitate research by students, practitioners, and other researchers. All normal copywright and distribution rules apply. Downloads should be treated as an offprint.

In Press

Ratcliffe, J., T. Taniguchi, E.R. Groff and J. Wood (In press, August 2011). The Philadelphia Foot Patrol Experiment: A Randomized Controlled Trial of Police Effectiveness in Violent Crime Hotspots." Criminology. Draft PDF

Groff, E. R. and McCord. E. (2011). The Role of Neighborhood Parks as Crime Generators. Security Journal:1-24. PDF

Groff, E. R. (In Press). Exploring 'Near': Characterizing the Spatial Extent of Drinking Place Influence on Crime. Australian and New Zealand Journal of Criminology.

Weisburd, D., Groff, E. R. and N. Morris (In press). Hot spots of Juvenile Crime: Findings from Seattle. Juvenile Justice Bulletin. Office of Juvenile Justice and Delinquency Prevention.


Groff, E.R., D. Weisburd, and Yang, S-M. 2010. Is it Important to Examine Crime Trends at a Local "Micro" Level?: A Longitudinal Analysis of Block to Block Variability in Crime Trajectories. Journal of Quantitative Criminology, 26:7-32. PDF

Groff, E. R. (2010) Adolphe Qu├ętelet. In F. Cullen and P. Wilcox (eds), Encyclopedia of Criminological Theory (Vol. 2, pp. 749-753). Sage: Thousand Oaks, CA.

Weisburd, D., E.R. Groff, & Yang, S.-M. 2010. Understanding Developmental Crime Trajectories at Places: Social Disorganization and Opportunity Perspectives at Micro Units of Geography. Final Report. Office of Justice Programs, National Institute of Justice.


Weisburd, D, N. Morris, and Groff, E.R. 2009. Hot Spots of Juvenile Crime: A Longitudinal Study of Street Segments in Seattle, Washington. Journal of Quantitative Criminology, 25(4): 443-467. PDF

Weisburd, D., E.R. Groff and N. Morris. Hot Spots of Juvenile Crime: Some Preliminary Findings. Final Report. Washington, DC. Office of Juvenile Justice and Delinquency Prevention. 2009.


Groff, E. R. and Birks, D. 2008. Simulating Crime Prevention Strategies: A Look at the Possibilities. Policing: A Journal of Policy and Practice, 1(0): 1-10. PDF

Groff, E. R. 2008. Adding the Temporal and Spatial Aspects of Routine Activities: A Further Test of Routine Activity Theory. Security Journal, 21(1-2): 95-116. PDF

Groff, E. R., D. Weisburd, and N. Morris 2008. Where the Action is at Places: Examining Spatio-Temporal Patterns of Juvenile Crime at Places Using Trajectory Analysis and GIS. In D. Weisburd, W. Bernasco and G. Bruinsma (eds), Putting Crime in its Place: Units of Analysis in Spatial Crime Research. Springer-Verlag.

Groff, E. R. 2008. Characterizing the Spatio-Temporal Aspects of Routine Activities and the Geographic Distribution of Street Robbery. In L. Liu & J. Eck (Eds.), Artificial Crime Analysis Systems: Using Computer Simulations and Geographic Information Systems (pp. 226-251). Idea Group: Hershey, PA.

Groff, E.R. Modeling the Dynamics of Street Robberies. Final Report. Washington, DC: National Institute of Justice. 2008.

Groff, E.R. and T. McEwen 2008. Identifying and Measuring the Effects of Information Technologies on Law Enforcement Agencies: The Making Officer Redeployment Effective Program, A Guide for Law Enforcement. Washington, DC, COPS Office.

Groff, E. R. and L. Mazzerole 2008. "Simulated Experiments and their Potential Role in Criminology and Criminal Justice." Journal of Experimental Criminology 4(3): 187-193.PDF

Groff, E.R. 2008. Simulating Crime to Inform Theory and Practice. In S. Chainey and Tompson, L. (ed), Crime Mapping Case Studies: Practice and Research (pp. 133-141). John Wiley and Sons.


Groff, E. R. 2007. 'Situating' Simulation to Model Human Spatio-Temporal Interactions: An Example Using Crime Events. Transactions in GIS, 11(4):507-530. PDF

Groff, E. R. 2007. "Simulation for Theory Testing and Experimentation: An Example Using Routine Activity Theory and Street Robbery." Journal of Quantitative Criminology 23:75-103. PDF

Groff, E. R. and McEwen, T. 2007. "Integrating Distance Into Mobility Triangle Typologies." Social Science Computer Review 25:210-238. PDF


Groff, E.R. 2006. Analysis in Practice: Spacing Out Crime. Police Professional Magazine (63: 33-35).

2005 and earlier

Groff, E.R., Kearley, B., Beatty, P., Fogg, H., Couture, H., and Wartell, J. 2005. "A Randomized Experimental Study of Sharing Crime Data with Citizens: Do Maps Produce More Fear?" Journal of Experimental Criminology 1:87-115. PDF

Groff, E.R. and T. McEwen. 2005. "Disaggregating the Journey to Homicide." In F. Wang (ed.), Geographic Information Systems and Crime Analysis (pp.60-83). Idea Group: Hershey, PA.

Groff, E.R. and T. McEwen, 2005. Exploring the Spatial Configuration of Places Related to Homicide Events. Final Report. National Institute of Justice: Washington, DC.

Groff, E.R. and T. McEwen, 2005. Visualization of Spatial Relationships in Mobility Research: A Primer. Final Report. Washington DC: Office of Justice Programs; National Institute of Justice.

2004 and earlier

Beckman, K., Wyckoff, L., Groff, E.R., and Beatty, P. 2004. "Trends in Police Research: A Cross-sectional Analysis of the 2001 Literature," Police Practice and Research 5 (2): 165-189, 2004.

Groff, E.R. and N.G. LaVigne. 2002. "Forecasting the Future of Predictive Crime Mapping." In N. Tilley (ed.), Analysis for Crime Prevention (Vol. 13, pp. 29-58). Criminal Justice Press: Monsey, NY.

Mamalian, C.A., N.G. La Vigne, and E.R. Groff. 2001. "The Use of Computerized Crime Mapping by Law Enforcement: Survey Results." National Institute of Justice: Washington, DC.

Groff, E.R. and N.G. La Vigne. 2001. "Evolution of Crime Mapping in the United States: From the Descriptive to the Analytic." In A. Hirschfield and K. Bowers (eds), Mapping and Analysing Crime Data: Lessons From Research And Practice (pp. 203-221). Taylor and Francis: New York.

Groff, E.R., and La Vigne, N.G. 2001. "Mapping an Opportunity Surface of Residential Burglary," Journal of Research in Crime and Delinquency 38 (3):257-278.

Groff, E.R. with J.K. Fleury and D. Stoe, 2000. "Strategic Approaches to Community Safety Initiative (SACSI): Enhancing the Analytic Capacity of a Local Problem-Solving Effort." National Institute of Justice: Washington, DC.