Jerry Ratcliffe
@jerryratcliffe.net
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
Google Scholar: https://scholar.google.com/citations?user=BOJIm0QAAAAJ
ORCID: https://orcid.org/0000-0002-0730-6761
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.
* No, this isn’t to negate the abhorrent shooting this week.
September 14, 2025 at 12:06 PM
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.
* No, this isn’t to negate the abhorrent shooting this week.
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
Apple: apple.co/4g269aC
Spotify: bit.ly/4oXiQYc
September 2, 2025 at 12:42 AM
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
Apple: apple.co/4g269aC
Spotify: bit.ly/4oXiQYc
Just asked Google how President Trump activated the National Guard.
The response was... not optimal.
The response was... not optimal.
August 30, 2025 at 2:36 PM
Just asked Google how President Trump activated the National Guard.
The response was... not optimal.
The response was... not optimal.
Fun chat covering Matt's experiences as an analyst in the National Intelligence Model and where #evidence-based_policing is right now.
Tons of great advice for crime analysts working with police departments.
Tons of great advice for crime analysts working with police departments.
August 28, 2025 at 2:08 PM
Fun chat covering Matt's experiences as an analyst in the National Intelligence Model and where #evidence-based_policing is right now.
Tons of great advice for crime analysts working with police departments.
Tons of great advice for crime analysts working with police departments.
If you have civilian staff in your police department, you will want to forward this podcast episode to them. Packed with tips on how to survive as a senior civilian leader in policing, from one of the best.
July 28, 2025 at 12:19 PM
If you have civilian staff in your police department, you will want to forward this podcast episode to them. Packed with tips on how to survive as a senior civilian leader in policing, from one of the best.
Alex Murray from the Society of Evidence-Based Policing kicks off the global societies meeting in Cambridge to a packed room.
July 21, 2025 at 8:44 AM
Alex Murray from the Society of Evidence-Based Policing kicks off the global societies meeting in Cambridge to a packed room.
This was a fun episode to record. Stacey is smart, insightful about #EBP and fun to hang with, all of which comes across in this episode. Here she talks about the benefits of dedicated RVR officers for domestic violence.
Full episode is great fun. Dive in!
Full episode is great fun. Dive in!
June 30, 2025 at 11:24 AM
This was a fun episode to record. Stacey is smart, insightful about #EBP and fun to hang with, all of which comes across in this episode. Here she talks about the benefits of dedicated RVR officers for domestic violence.
Full episode is great fun. Dive in!
Full episode is great fun. Dive in!
Tomorrow on the @reducingcrime.com a primer on police use and benefits of rapid video response, from Stacey Rothwell.
Here she explains that even though we have new ways of calling the police, the response types haven't changed.
This fun episode from a pub garden drops tomorrow.
Here she explains that even though we have new ways of calling the police, the response types haven't changed.
This fun episode from a pub garden drops tomorrow.
June 29, 2025 at 2:57 PM
Tomorrow on the @reducingcrime.com a primer on police use and benefits of rapid video response, from Stacey Rothwell.
Here she explains that even though we have new ways of calling the police, the response types haven't changed.
This fun episode from a pub garden drops tomorrow.
Here she explains that even though we have new ways of calling the police, the response types haven't changed.
This fun episode from a pub garden drops tomorrow.
3 sentences epitomize why crime policy is a mess.
1. Violence fluctuates a lot while poverty has remained largely unchanged so this is questionable
2. But not crime scientists who study crime
3. These don't address the root causes in the first two sentences
🤷🙄
abc7chicago.com/post/studies...
1. Violence fluctuates a lot while poverty has remained largely unchanged so this is questionable
2. But not crime scientists who study crime
3. These don't address the root causes in the first two sentences
🤷🙄
abc7chicago.com/post/studies...
June 1, 2025 at 10:06 PM
3 sentences epitomize why crime policy is a mess.
1. Violence fluctuates a lot while poverty has remained largely unchanged so this is questionable
2. But not crime scientists who study crime
3. These don't address the root causes in the first two sentences
🤷🙄
abc7chicago.com/post/studies...
1. Violence fluctuates a lot while poverty has remained largely unchanged so this is questionable
2. But not crime scientists who study crime
3. These don't address the root causes in the first two sentences
🤷🙄
abc7chicago.com/post/studies...
EPISODE ALERT: A new @reducingcrime.com podcast episode (#83) just dropped with David Décary-Hétu, an expert in all things darkweb. It's like a free primer on what's going on in cybercrime, law enforcement interdictions, and the dark web.
Apple: apple.co/4kbgJNG
Spotify: spoti.fi/43Hv9OH
Apple: apple.co/4kbgJNG
Spotify: spoti.fi/43Hv9OH
May 30, 2025 at 2:08 PM
EPISODE ALERT: A new @reducingcrime.com podcast episode (#83) just dropped with David Décary-Hétu, an expert in all things darkweb. It's like a free primer on what's going on in cybercrime, law enforcement interdictions, and the dark web.
Apple: apple.co/4kbgJNG
Spotify: spoti.fi/43Hv9OH
Apple: apple.co/4kbgJNG
Spotify: spoti.fi/43Hv9OH
This Thursday on the @reducingcrime.com podcast, David Décary-Hétu gives you the lowdown on the #Darkweb: #red_rooms, #hitman_for_hire sites, and surprising tales of law enforcement success. Also why cybercrime has become such a problem.
Also, now that I've #-ed those terms, my algorithm is screwed.
Also, now that I've #-ed those terms, my algorithm is screwed.
May 27, 2025 at 3:32 PM
This Thursday on the @reducingcrime.com podcast, David Décary-Hétu gives you the lowdown on the #Darkweb: #red_rooms, #hitman_for_hire sites, and surprising tales of law enforcement success. Also why cybercrime has become such a problem.
Also, now that I've #-ed those terms, my algorithm is screwed.
Also, now that I've #-ed those terms, my algorithm is screwed.
If you are an analyst in policing, then Loren Atherley has some top-notch advice on how to get traction and buy-in with your analytical products.
From the @reducingcrime.com podcast, episode #82.
Apple: apple.co/4jqD6yg
Spotify: spoti.fi/3Yn8wx8
SoundCloud: on.soundcloud.com/xVARcnK8dtrv...
From the @reducingcrime.com podcast, episode #82.
Apple: apple.co/4jqD6yg
Spotify: spoti.fi/3Yn8wx8
SoundCloud: on.soundcloud.com/xVARcnK8dtrv...
May 6, 2025 at 2:23 AM
If you are an analyst in policing, then Loren Atherley has some top-notch advice on how to get traction and buy-in with your analytical products.
From the @reducingcrime.com podcast, episode #82.
Apple: apple.co/4jqD6yg
Spotify: spoti.fi/3Yn8wx8
SoundCloud: on.soundcloud.com/xVARcnK8dtrv...
From the @reducingcrime.com podcast, episode #82.
Apple: apple.co/4jqD6yg
Spotify: spoti.fi/3Yn8wx8
SoundCloud: on.soundcloud.com/xVARcnK8dtrv...
Excited to announce I am moving to the University of Pennsylvania's Department of Criminology, to be faculty director of their new Masters in Applied Criminology and Police Leadership.
One weekend a month in Philadelphia (8x a year), one summer week, two years: www.lps.upenn.edu/degree-progr...
One weekend a month in Philadelphia (8x a year), one summer week, two years: www.lps.upenn.edu/degree-progr...
May 4, 2025 at 7:55 PM
Excited to announce I am moving to the University of Pennsylvania's Department of Criminology, to be faculty director of their new Masters in Applied Criminology and Police Leadership.
One weekend a month in Philadelphia (8x a year), one summer week, two years: www.lps.upenn.edu/degree-progr...
One weekend a month in Philadelphia (8x a year), one summer week, two years: www.lps.upenn.edu/degree-progr...
Hayley Wight and I conducted 100s of hours of fieldwork in Kensington with @septa-social.bsky.social police officers. Officers generally supported long-term help, but were more hesitant to support short-term assistance, which many saw as 'enabling' addition. As one officer said:
![Police officer quote saying: "‘Are all of these non-profits and churches actually helping anyone, or are they just helping [individuals in active addiction] stay on the street? They bring food one day, clothes another … I go back and forward on this. But I question if they are helping, or just helping people stay on the streets, not really solving the problem.."](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cqpvqh3e467ek22ylqtsyq2b/bafkreihrg3xsntoqfrvvsmb2niwprybxwbx7ui3ao4zjnhamj3sm3jlice@jpeg)
May 2, 2025 at 4:25 PM
Hayley Wight and I conducted 100s of hours of fieldwork in Kensington with @septa-social.bsky.social police officers. Officers generally supported long-term help, but were more hesitant to support short-term assistance, which many saw as 'enabling' addition. As one officer said:
Lots here for crime analysts and police leaders. Join me and Loren Atherley, research and data guru with the Seattle PD talking consent decrees, being data curious, evidence-based policing, advanced analytics... and the highly questionable contents of his basement.
April 29, 2025 at 1:21 PM
Lots here for crime analysts and police leaders. Join me and Loren Atherley, research and data guru with the Seattle PD talking consent decrees, being data curious, evidence-based policing, advanced analytics... and the highly questionable contents of his basement.
Tomorrow on the @reducingcrime.com podcast, newly minted @cambridgeuni.bsky.social PhD Loren Atherley talks surviving a consent decree, how to establish evidence-based policing, and the role of advanced analytics. And being data curious...
Available at all the usual pod places tomorrow morning.
Available at all the usual pod places tomorrow morning.
April 28, 2025 at 2:58 PM
Tomorrow on the @reducingcrime.com podcast, newly minted @cambridgeuni.bsky.social PhD Loren Atherley talks surviving a consent decree, how to establish evidence-based policing, and the role of advanced analytics. And being data curious...
Available at all the usual pod places tomorrow morning.
Available at all the usual pod places tomorrow morning.
You can overpower one, but you can’t overpower all. How policing keeps cities safe, from 1873.
April 26, 2025 at 1:33 PM
You can overpower one, but you can’t overpower all. How policing keeps cities safe, from 1873.
Larry Sherman at the University of Pennsylvania with a talk celebrating the 20th anniversary of the creation of their criminology department.
April 9, 2025 at 6:19 PM
Larry Sherman at the University of Pennsylvania with a talk celebrating the 20th anniversary of the creation of their criminology department.
Not sure who needs to hear this, but 'Down In the Tube Station at Midnight' remains an absolute classic 46 years later.
April 8, 2025 at 10:59 PM
Not sure who needs to hear this, but 'Down In the Tube Station at Midnight' remains an absolute classic 46 years later.
Some lucky Philadelphia defendant gets me on a court case today 👍🏻
March 25, 2025 at 1:53 PM
Some lucky Philadelphia defendant gets me on a court case today 👍🏻
A Sunday morning thought about frontline policing.
March 23, 2025 at 2:36 PM
A Sunday morning thought about frontline policing.
Now's a great time to listen to the latest @reducingcrime.com episode featuring Clifford Stott explaining the outdated myths that police still hold about crowd control.
Take a listen - will change how you police.
Apple: apple.co/41wPdDA
Spotify: spoti.fi/3QXwmvr
Take a listen - will change how you police.
Apple: apple.co/41wPdDA
Spotify: spoti.fi/3QXwmvr
March 10, 2025 at 7:12 PM
Now's a great time to listen to the latest @reducingcrime.com episode featuring Clifford Stott explaining the outdated myths that police still hold about crowd control.
Take a listen - will change how you police.
Apple: apple.co/41wPdDA
Spotify: spoti.fi/3QXwmvr
Take a listen - will change how you police.
Apple: apple.co/41wPdDA
Spotify: spoti.fi/3QXwmvr
Democrat attempts to defund the police were largely unsuccessful or minimal.
But Republicans proposing nearly $3 billion of cuts to policing likely to pass.
But Republicans proposing nearly $3 billion of cuts to policing likely to pass.
March 8, 2025 at 8:39 PM
Democrat attempts to defund the police were largely unsuccessful or minimal.
But Republicans proposing nearly $3 billion of cuts to policing likely to pass.
But Republicans proposing nearly $3 billion of cuts to policing likely to pass.
Looking forward to talking this afternoon to the #DC #Police #Leadership #Academy organized by the fantastic Jess Bress!
February 24, 2025 at 5:06 PM
Looking forward to talking this afternoon to the #DC #Police #Leadership #Academy organized by the fantastic Jess Bress!
