Jerry Ratcliffe
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jerryratcliffe.net
Jerry Ratcliffe
@jerryratcliffe.net
1.1K followers 260 following 310 posts

College prof, ex-UK cop, host of the Reducing Crime podcast, scientific advisor to the IACP. In my spare time, I try not to crash planes.

Google Scholar: https://scholar.google.com/citations?user=BOJIm0QAAAAJ
ORCID: https://orcid.org/0000-0002-0730-6761 .. more

Videos
Political science 42%
Sociology 30%
Posts Replies Media Videos

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · 1d
We won the cold war, and then gave it all away.
What a betrayal.
kyivindependent.com The Kyiv Independent @kyivindependent.com · 1d
⚡️US military aid to Ukraine dropped 99% in 2025, report finds.

European countries stepped in to fill the gap, increasing military aid to Ukraine by 67% and non-military support by 59% in 2025, according to the Kiel Institute for the World Economy.
US military aid to Ukraine dropped 99% in 2025, report finds
European countries stepped in to fill the gap, increasing military aid to Ukraine by 67% and non-military support by 59% in 2025, according to the Kiel Institute for the World Economy.
kyivindependent.com

Reposted by Andrew Scott, Jerry H. Ratcliffe

kyivindependent.com
The Kyiv Independent @kyivindependent.com · 1d
⚡️US military aid to Ukraine dropped 99% in 2025, report finds.

European countries stepped in to fill the gap, increasing military aid to Ukraine by 67% and non-military support by 59% in 2025, according to the Kiel Institute for the World Economy.
US military aid to Ukraine dropped 99% in 2025, report finds
European countries stepped in to fill the gap, increasing military aid to Ukraine by 67% and non-military support by 59% in 2025, according to the Kiel Institute for the World Economy.
kyivindependent.com

Reposted by Jerry H. Ratcliffe

jeffasher.bsky.social
Jeff Asher @jeffasher.bsky.social · 16d
New pod out with @jerryratcliffe.net! Jerry is one of the smartest voices out there working to use research & science to improve policing. Give it a listen!

Apple - podcasts.apple.com/us/podcast/t...
Spotify - open.spotify.com/episode/4k6E...
Amazon - music.amazon.com/podcasts/cad...

Reposted by Stephen M. Walt, Joanna Bryson, Marc Lynch , and 80 more

davidho.bsky.social
David Ho @davidho.bsky.social · 23d
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.

www.nature.com/immersive/d4...
This line graph illustrates the percentage change in agency staff levels from the previous year for nine major U.S. federal scientific and health organizations between the fiscal years 2016 and 2025. The agencies tracked include the CDC, Department of Energy, EPA, FDA, NASA, NIH, NIST, NOAA, and NSF. For the majority of the timeline between 2016 and 2023, the agencies show relatively stable fluctuations, generally staying within a range of +5% to -5% change per year. However, there is a dramatic and uniform plummet starting in the 2024–25 period. Every agency depicted shows a sharp downward trajectory, with staffing losses ranging from approximately -15% to over -25%. The Environmental Protection Agency (EPA) shows the most significant decline, dropping to roughly -26%, while the National Institute of Standards and Technology (NIST) shows the least severe but still substantial drop at approximately -15%.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · 27d
Police departments struggle to find research partners, in part because academic criminology has actively worked against policing research for some years now.

Source: www.jerryratcliffe.net/_files/ugd/f...

Reposted by Jerry H. Ratcliffe, Rense Corten

stijnruiter.bsky.social
Stijn Ruiter @stijnruiter.bsky.social · Jan 12
Do you explore intersections between digitalization and geography of crime? @asiermoneva.com, Wim Bernasco and I look forward to your contribution to our guest-edited special issue “The Geography of Crime in the Digital Era”. See call for papers (www.sciencedirect.com/journal/jour...). Please share.

Reposted by John Horgan, Jerry H. Ratcliffe

drlaurahuey.bsky.social
Professor Laura Huey @drlaurahuey.bsky.social · Jan 9
The first paper in our inaugural collection is now out. Much thanks @jerryratcliffe.net

www.tandfonline.com/doi/full/10....
A shortage of ‘copaganda fascists’ and the need for more police pracademics
This essay examines the evolving relationship between policing and academia, highlighting the increasing significance of pracademics – police practitioners with scientific training who, like embedd...
www.tandfonline.com

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Dec 13
Brilliant 😂

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Dec 12
Page 26 of that report (yes, I'm a nerd) has a truly awful graph from a design perspective. I mean, who thought this is good?

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 29
Thanks for getting back to me Asier. That’s not it (it’s a recent pub in last few weeks) but this helps too. Cheers!

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 29
Crime nerds, I need help. @LessCrime's excellent RSS feed recently posted an article about what I think was a study looking at if people took more cyber crime prevention advice when it was from authorities rather than hackers (if I recall), but now I can't find it. Anyone help?
@asiermoneva.com?

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 19
BlueSky filesize limits are a p.i.t.a, but if you want weekly summaries of key crime and policing studies and ideas, please follow reducingcrime_ over at instagram, or Reducing Crime on LinkedIn.
reducingcrime.com Reducing Crime @reducingcrime.com · Nov 19
If you are on Instagram there's a 90 second summary of the Philadelphia Predictive Policing Experiment findings.

(BlueSky doesn't let us post 90 second videos because the file size is too large)
www.instagram.com/reel/DPjPS_Q...
Login • Instagram
Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.
www.instagram.com

Reposted by Jerry H. Ratcliffe

reducingcrime.com
Reducing Crime @reducingcrime.com · Nov 19
If you are on Instagram there's a 90 second summary of the Philadelphia Predictive Policing Experiment findings.

(BlueSky doesn't let us post 90 second videos because the file size is too large)
www.instagram.com/reel/DPjPS_Q...
Login • Instagram
Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.
www.instagram.com

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 18
I didn't know CloudFlare was a thing, until it screwed up this morning's work.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 11
This week is the ASC conference, so here’s mentions of “abolish” in recent programs:
2021 1 program, 5 submissions
2022 1 submission
2023 4 programs, 5 subs
2024 5 programs, 3 subs
2025 2 programs (not incl. one about abolishing nuclear weapons)

Is this idea's rampant stupidity finally receding?

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 8
The American Society of Criminology conference is next week and this is your annual reminder that most of the presentations will likely be 💩
Here are some ways to be less 💩

www.jerryratcliffe.net/post/i-want-...
I want a refund for your conference presentation
There is a problem with academic criminal justice and criminology, and it’s getting worse.I’ve attended several conferences and meetings in the last three months. And the standard of presentation is d...
www.jerryratcliffe.net

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 7
Yeah, he's a super smart guy.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 6
Thanks for the shoutout. Here at UPenn we are proud of the program, with world-ranked, practical, non-partisan faculty.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Nov 5
If you aren't following the work of @benbradford.bsky.social then you are missing out on thoughtful insights into policing and public safety.
Apple: apple.co/4opeJDD
Spotify: bit.ly/3WBBJ6f

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Oct 11
An interesting thought experiment here, and ... if you follow the logic of the thread, raises broader and potentially significant questions about the validity of 'lived experience' as a viable criminological research tool.
gmhales.bsky.social Gavin Hales @gmhales.bsky.social · Oct 11
I've been wondering recently how many racist police officers were racist when they joined, and whether part of the issue is logical fallacies arising from having a lot of contact with very narrow sections of society in places with which they may not otherwise be familiar.

Reposted by Jerry H. Ratcliffe

gmhales.bsky.social
Gavin Hales @gmhales.bsky.social · Oct 11
I've been wondering recently how many racist police officers were racist when they joined, and whether part of the issue is logical fallacies arising from having a lot of contact with very narrow sections of society in places with which they may not otherwise be familiar.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Oct 7
No, but we can examine other questions alongside the political circumstances. It's not like those other questions are not (rightly) being asked... just about everywhere.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Oct 7
Featuring a little of my chat with @martinkaste.bsky.social on the crime reduction implications of the deployment of National Guard in Washington DC.
www.npr.org/2025/10/02/n...
National Guard presence may deter crime, but experts warn of the long-term costs
As President Trump ramps up efforts to send federal officers and troops into cities, criminologists are watching closely. Are the feds doing this in a smart way?
www.npr.org

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Oct 3
I agree with the tenor and points of ALL of the interviewees in the article, and reiterated many of the arguments and concerns mentioned by others. But there’s no point in the reporter using the same quote from everyone. I’m sure they are all equally aware of the UK research and it is relevant.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Sep 14
Commentary box? You moving upward in that field?

Reposted by José Pina-Sánchez

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Sep 14
To contextualize this week’s political commentary, of the 2,647 identified extremist violent offenders in the US since 2000, far-right extremists were more than 7 times more represented in the data than far-left extremists.

* No, this isn’t to negate the abhorrent shooting this week.

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Sep 5
Things get nicked because they are one or more of... CRAVED:
Concealable
Removable
Available
Valuable
Enjoyable
Disposable

(if I remember correctly)

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Sep 2
A must-read op-ed by Keith Humphreys in the NY Times, covers both how harm reduction advocates abandoned communities (hello Kensington in Philadelphia) and why mandating drug treatment will help many.

His @reducingcrime.com podcast ep is a must: apple.co/4ne9Jko

www.nytimes.com/2025/09/02/o...
Opinion | Forcing People Into Drug Treatment Can Save Their Lives
www.nytimes.com

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Sep 2
In the new episode of the @reducingcrime.com podcast, @mattbland.bsky.social - former analyst and now evidence-based policing guru - explains the value he got from socializing with police officers.
Apple: apple.co/4g269aC
Spotify: bit.ly/4oXiQYc

jerryratcliffe.net
Jerry Ratcliffe @jerryratcliffe.net · Aug 30
Just asked Google how President Trump activated the National Guard.
The response was... not optimal.