Jerry Ratcliffe
@Jerry_Ratcliffe
Followers
10K
Following
23K
Media
2K
Statuses
19K
University prof, ex-🇬🇧 cop, host @_ReducingCrime podcast. ✍️“Evidence-Based Policing: The Basics” 🇺🇸 via 🏴🏴🇦🇺
Probably an airport
Joined September 2012
Professors: Are you prepping an evidence-based policing class for next semester? Sign up at for PowerPoint slides, multiple choice tests, assignments, and over 30 short videos for your hybrid/online classes.
evidencebasedpolicing.net
Home of "Evidence-Based Policing: The Basics" by Jerry Ratcliffe, an introductory book on evidence-based policing for police officers and students. Contains additional material, glossary, videos and...
5
26
95
RT @jjhall_77: For recent research on OPCs and crime:.• My analysis w/ @Jerry_Ratcliffe: • JAMA study by @AaronChal….
jamanetwork.com
This cohort study uses administrative data to evaluate the changes in crime and disorder associated with the opening of 2 overdose prevention centers in New York City.
0
1
0
Got one coming tomorrow on ILP, but for now here's an oldie about ways to make foot patrol a success. Coming soon, tactical use of CCTV, the Dallas Crime Plan, and why gun buybacks don't work.
New reel tomorrow on intelligence-led policing (over on , but for now here's a re-up on three ways to make foot patrol a success
0
0
5
With fiscal austerity affecting many police departments, the costs of analytical software can be seen as prohibitive. Here, @LessCrime is doing a considerable service to the crime analysis community with this new #Rstat package.
Announcing sfhotspot, an #RStats package to make it as easy as possible to identify and map concentrations of crime (or concentrations of any other points in space). Introduction: Package website: 🧵
0
0
1
Your sub 90-second primer on focused deterrence.
Ever hear the words 'focused deterrence' and wonder what it is? Wonder no more. Regular reels at:
0
2
6
RT @_ReducingCrime: EPISODE ALERT: #85 .Nola Joyce has had leadership roles with the police departments of Chicago, Washington D.C., and Ph….
open.spotify.com
Reducing Crime · Episode
0
2
0
RT @Jerry_Ratcliffe: Nola Joyce has had leadership roles with the police departments of Chicago, Washington D.C., and Philadelphia where sh….
0
2
0
I want to know the story here. Drove forwards or backwards? 🧐
7
0
11
Nola Joyce has had leadership roles with the police departments of Chicago, Washington D.C., and Philadelphia where she held the rank of Deputy Commissioner. She discusses the role of civilian staff in policing. Apple: Spotify:
0
2
5
Want a sub 90-second primer on a key study or idea in policing/crime prevention like this every few days? .
What happens when a police department has to lay off officers? This natural experiment from @PizaEric and Vijay Chillar shows the negative effects. Want to catch up with the latest videos? see them first here:
0
0
4
Nice of Cliff Stott, world-leading crowd psychology expert, to start his talk at the global societies of evidence-based policing conference in Cambridge with my definition of EBP.
0
1
8
John MacDonald from University of Pennsylvania outlining some key facts about crime and offending.
2
5
20
RT @SecuritySheep: All #police and public should remember this! . Stop & search SHOULD BE TARGETED to match the below in the #UK . Or are p….
0
1
0
Ian Brennan showing, with a @LessCrime graph, the substantial racial disparity in UK homicide rates. That’s Black victims in the red bars.
2
4
15
Alex Murray from the Society of Evidence-Based Policing kicks off the global societies meeting in Cambridge to a packed room.
0
0
4
RT @greg_price11: Lol this is hilarious. The Phillies had a kiss cam and had the Phillie Phanatic re-enact the Coldplay affair😂. https://t….
0
8K
0
New paper by a number of authors finds that UK youth more likely to be stopped by police if they self-report carried knives, engaged in violent or non-violent offending, affiliated w street gangs, or consumed cannabis or alcohol. Good policing then👍.
0
0
1
Depending on your choice of denominator, the racial disparity changes considerably. Here's the example we use from 2022 data in Philadelphia. What's the right denominator to use? .Sorry. read the paper. It's only 8 pages😉.2/2
2
1
5
New article, free download, slightly controversial? . Police stops nearly always exhibit racial disparity, compared to citywide population. But what if you use a denominator that better reflects actual police work? . Then it get's interesting. 1/2
1
12
38