Ratcliffe's random ramblings

The reel is based on recently pu blished work by Jens Ludwig and Kevin Schnepel in the Annual Review of Criminology. It is publicly...

The VIPER checklist was developed for the PANDA Crime reduction approach. Both are described in depth in the book, Reducing Crime: A...

Why gun buybacks don't reduce crime Here is a link to some relatively recent research I published on gun buybacks in Philadelphia:...

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., &...

Data and reports related to the Bureau of Justice Statistics Police-Public Contact Survey are available here: https://bjs.ojp.gov/library...

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...

The definition that will be coming out in the forthcoming edition (3rd) of my book 'Intelligence-Led Policing' is: Intelligence-led...

For more information on focused deterrence, see my other reel on the subject: https://www.reducingcrime.com/post/what-is-focused-deterrence

For details of CHEERS, see step 14 of Clarke, R. V., & Eck, J. E. (2005). Crime analysis for problem solvers - In 60 small steps. Center...

The reel is based on a recent paper: Boehme, H. M., Tregle, B., & Schnell, C. (2025). “You keep me hanging on”: Evidence from the...

The post draw on my c hat with David Décary-Hétu on the Reducing Crime podcast. You can listen here, or access it from just about any...

Here is a quick primer on the Koper Curve from the National Policing Institute. And here is the original publication that discusses the...

Also known as Group Violence Reduction Strategy these days.

The paper discussed in the video is this: Piza, E. L., & Chillar, V. F. (2021). The effect of police layoffs on crime: A natural...

The cited work is: Bates, L., Bennett, S., Irvine, C., Antrobus, E., & Gilmour, J. (2025). A procedurally just flyer reduces subsequent...

Are US cities underpoliced? The two references cited in the video are: Chalfin, A., & McCrary, J. (2018). Are U.S. cities underpoliced?...

For details of a randomized controlled trial that demonstrated the value of foot patrol, see the Philadelphia Foot Patrol Experiment....

What is evidence-based policing? An approach where police officers and staff create, review, and use the best available evidence to...