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Why do officers leave policing?
Or more accurately, why officers 'think' about leaving policing. The easiest way to access a concise report on this reel is via the IACP . The full study available here is: Jacqueline M Drew, Elise Sargeant, Sherri Martin (2024) Why do police consider leaving the profession?: The interplay between job demand stress, burnout, psychological distress, and commitment, Policing: A Journal of Policy and Practice , Volume 18, 2024, paae036, https://doi.org/10.1093/police/paae036
Jerry Ratcliffe
Nov 30, 20251 min read


Did the NYPD's Operation Impact surge work?
The study cited is MacDonald J, Fagan J, Geller A (2016) The Effects of Local Police Surges on Crime and Arrests in New York City. PLoS ONE 11(6): e0157223. https://doi.org/10.1371/journal.pone.0157223 The research study is open access so you can read the entire research report here .
Jerry Ratcliffe
Nov 23, 20251 min read


Do police legitimacy interventions work?
Lorraine Mazerolle and colleagues undertook a systematic review of police-led legitimacy interventions to see if they had the desired outcome. The full citation is: Mazerolle, L., Bennett, S., Davis, J., Sargeant, E. and Manning, M. (2013), Legitimacy in Policing: A Systematic Review. Campbell Systematic Reviews , 9: i-147. https://doi.org/10.4073/csr.2013.1 You can read the entire study here , as it is open access.
Jerry Ratcliffe
Nov 17, 20251 min read


Do crime prevention letters work?
The full study is available online and open access , and is Hodgkinson, W., Assaraf, N., Ariel, B., & Sutherland, A. (2025). Burglary...
Jerry Ratcliffe
Nov 9, 20251 min read


Kansas City Preventive Policing Experiment
Source: Kelling, G. L., Pate, T., Dieckman, D., & Brown, C. E. (1974). The Kansas City Preventive Patrol Experiment: A Summary Report ....
Jerry Ratcliffe
Nov 2, 20251 min read


Operation Capesso: Positive results
At the time of publishing this video, the full results have not yet been published. The results are from direct communication from Dave...
Jerry Ratcliffe
Nov 2, 20251 min read


Investigative interview techniques
This report is from a 2024 Campbell Collaboration systematic review. The full citation is: Catlin, M., Wilson, D. B., Redlich, A. D., Bettens, T., Meissner, C. A., Bhatt, S., & Brandon, S. E. (2024). Interview and interrogation methods and their effects on true and false confessions: A systematic review update and extension. Campbell Systematic Reviews , 20(4), e1441. Here's the full report .
Jerry Ratcliffe
Oct 22, 20251 min read


Effect of police station closures
The video cites the work of Elisa Facchetti, in work published by the Institute of Fiscal Studies. I cited work from a pdf published on their website and available directly here .
Jerry Ratcliffe
Oct 15, 20251 min read


Philadelphia Predictive Policing Experiment
Here is a three-page summary of the experiment from Police Chief magazine. For academics, the full published results can be found here:...
Jerry Ratcliffe
Oct 8, 20251 min read


Does sexual assault training make a difference?
The study can be found described in: Bennett, S., Gilmour, J., Carr, K., Helton, K., & Anderson, K. (2025). Evaluating the impact of...
Jerry Ratcliffe
Sep 29, 20251 min read


Racial disparity in police stops
The full article this video refers to is: Ratcliffe, JH & Hyland, SS (2025) Police stops and naïve denominators, Crime Science , 14, 10. You can access the entire article here .
Jerry Ratcliffe
Sep 25, 20251 min read


Does police-led diversion work?
The Turning Point randomized trial, with background information was published in Neyroud, P. (2024). A diverting quarter century?...
Jerry Ratcliffe
Sep 21, 20251 min read


Why do some crowds become disorderly?
The post draws on my c hat with Cliff Stott on the Reducing Crime podcast. You can listen here, or access it from just about any podcast...
Jerry Ratcliffe
Sep 21, 20251 min read


When Seattle tried police abolition
The Reducing Crime podcast episode with Carmen Best can be found at: Apple: https://podcasts.apple.com/us/podcast/35-carmen-best/id141281...
Jerry Ratcliffe
Sep 21, 20251 min read


Does a job reduce crime?
The reel is based on recently pu blished work by Jens Ludwig and Kevin Schnepel in the Annual Review of Criminology. It is publicly...
Jerry Ratcliffe
Sep 21, 20251 min read


Tackle crime with the VIPER checklist
The VIPER checklist was developed for the PANDA Crime reduction approach. Both are described in depth in the book, Reducing Crime: A...
Jerry Ratcliffe
Sep 4, 20251 min read


Why gun buybacks don't reduce crime
Why gun buybacks don't reduce crime Here is a link to some relatively recent research I published on gun buybacks in Philadelphia:...
Jerry Ratcliffe
Aug 26, 20251 min read


Tactical use of CCTV
The reel is based on the work of Eric Piza and colleagues, and you can find it here: Piza, E. L., Caplan, J. M., Kennedy, L. W., &...
Jerry Ratcliffe
Aug 20, 20251 min read


Police shootings in context
Data and reports related to the Bureau of Justice Statistics Police-Public Contact Survey are available here: https://bjs.ojp.gov/library...
Jerry Ratcliffe
Aug 15, 20251 min read


The Dallas crime plan
Here is a link to the brief description of the Dallas Crime Plan in Police Chief magazine . A subscription may be required (but I don't...
Jerry Ratcliffe
Aug 13, 20251 min read
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