Resources
Empowering law enforcement with science and data-driven solutions to reduce crime, decrease racial and ethnic disparities, and improve community safety
Journal Articles
Selected papers from our team
Tillyer, R., Tregle, B., Smith, M.R., & Cardwell, S. (2026). Treatment dosage for violent crime reduction. Policing: A Journal of Policy and Practice, 20. https://doi.org/10.1093/police/paag022.
Neil, R., MacDonald, J. M., & Braga, A. A. (2025). Sources of organizational variability in fatal police shootings in the USA. Nature Human Behaviour, 9(6), 1113-1121. https://doi.org/10.1038/s41562-025-02169-7
Tregle, B., Smith, M.R., Fahmy, C. & Tillyer, R. (2025). More than meets the eye: Examining the impact of hot spots policing on reduction of city-wide crime. Crime Science, 14(3). https://doi.org/10.1186/s40163-025-00247-9.
Smith, M.R., Tillyer, R., & Engel, R.S. (2023). Race and the use of force by police revisited: Post-Ferguson findings from a large county police agency. Police Quarterly, 26(4), 411-440. https://doi.org/10.1177/10986111221139442.
Tillyer, R., Smith, M.R., & Lloyd, C.D. (2023). May I talk to you for a minute: An assessment of street stops and officer decision-making. Crime & Delinquency, 69(9), 1758-1784. https://doi.org/10.1177%2F00111287211047541.
Smith, M.R., Tillyer, R., Smith, M., & Lloyd, C. (2022). Assessing police stops of pedestrians: Toward a new generation of benchmarks. Urban Affairs Review, 58(4), 1152-1181. https://doi.org/10.1177/10780874211016930
Neil, R., & MacDonald, J. M. (2023). Where racial and ethnic disparities in policing come from: The spatial concentration of arrests across six cities. Criminology & Public Policy, 22(1), 7-34. https://doi.org/10.1111/1745-9133.12603
MacDonald, J., & Braga, A. A. (2019). Did post-Floyd et al. reforms reduce racial disparities in NYPD stop, question, and frisk practices? An exploratory analysis using external and internal benchmarks. Justice Quarterly, 36(5), 954-983. https://doi.org/10.1080/07418825.2018.1427278
Reports and White Papers
Selected public reports and white papers from our team
Smith, M.R., Tillyer, R., Tregle, B., & Cardwell, S. (2026). San Antonio Violent Crime Reduction Plan: Year 3 Evaluation.
Smith, M.R., Tillyer, R. & Engel, R.S. (2019). A Multi-Method Investigation of Officer Decision-Making and Force Use or Avoided in Arrest Situations.
Smith, M.R., Tillyer, R. & Engel, R.S. (2021). An Investigation of the Use of Force by the Fairfax County Police Department.
MacDonald, J.M., Smith, M.R., & Groff, E. (2025). A Focused Approach to Concentrating on Crime and Criminal Offenders.
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