Crime Prevention
Research Center

Dedicated to conducting academic quality research on the relationship between laws regulating the ownership or use of guns, crime, and public safety

Latest Research

UPDATED: Despite Lula’s Campaign Promises, the Number of Licensed Firearm Owners in Brazil Increased by at least 18% Between 2022 and 2026, and total guns owned up slightly by 3.3%

UPDATED: Despite Lula’s Campaign Promises, the Number of Licensed Firearm Owners in Brazil Increased by at least 18% Between 2022 and 2026, and total guns owned up slightly by 3.3%

UPDATE August 14, 2026: Include the new graph at the top. So there was a 86% increase in licensed firearm owners from 2017 to 2018. There was another 238% increase from 2018 to 2019. Between the year before Balsonaro took office in 2019 to his last year in office...

UPDATED: Almost Twice as Many General Election Voters Prefer Arresting Repeat Violent Criminals Compared to Enforcing Current Gun Control Laws or Enacting More Gun Control Laws

UPDATED: Almost Twice as Many General Election Voters Prefer Arresting Repeat Violent Criminals Compared to Enforcing Current Gun Control Laws or Enacting More Gun Control Laws

The Crime Prevention Research Center commissioned a new McLaughlin & Associates survey of 1,000 American general election voters on July 22nd, 2026 (cross tabs available here). Despite frequent claims that the public supports gun control as a way to reduce crime,...

Amicus Brief for Supreme Court, Viramontes et al v Cook County, on Assault Weapon Bans
I worked with the California Association of Highway Patrolmen & the California Peace Officers Research Association on this brief. Gun-control advocates’ main argument falsely claims that

Dr. John Lott appeared on Newsmax2’s Ike Wingate America to discuss the Justice Department’s new pathway for restoring federal gun rights to certain people with criminal convictions and the broader implications of the policy for Second Amendment rights.
#CPRC

Dr. John Lott was interviewed by the Federation for American Immigration Reform about his research on crime rates by illegal aliens. More detailed information can be found here and here.
#CPRC #Crimepreventionresearchcenter
https://crimeresearch.org/2026/09/interview-with-the-federation-for-american-immigration-reform-interview/

@seanmdav CATO's numbers are bogus. https://crimeresearch.org/2025/12/at-the-new-york-post-new-data-reveals-the-horrific-truth-about-illegal-immigrant-crime/
BTW, is it a coincidence total felony violent crime soared when we had record influx of illegals coming in under Biden & it is falling now?
https://crimeresearch.org/2025/10/final-data-through-2024-shows-that-violent-crime-increased-even-more-during-biden-administration/
I still hope CATO will debate

The Latest Research

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Latest Columns

At Townhall: Democrats Keep Showing They Want to Ban Guns

At Townhall: Democrats Keep Showing They Want to Ban Guns

Dr. John Lott has a new op-ed at Townhall. . Gun control advocates are trying a new tactic. Instead of trying to ban all handguns, some Democrat states are trying to ban one of the most commonly owned handguns – Glocks, which they claim can be easily converted into...

Videos

Talks

Talk in Houston: The FBI Crime Data is  a Politicized Mess

Talk in Houston: The FBI Crime Data is a Politicized Mess

Dr. John Lott gave a talk in Houston on April 17th, 2026 titled "The FBI Crime Data is a Politicized Mess." The audio here isn't perfect,, but hopefully between the audio and the PowerPoint the main message will get across. This audio missed the first 10 minutes of...

Media Appearances

All Our Posts

Should We Deport Illegal Aliens Only After They’re Convicted?: Waiting for a Drug Selling Conviction Can Cost Taxpayers Anywhere from Hundreds of Thousands of Dollars to Over a Half a Million

Should We Deport Illegal Aliens Only After They’re Convicted?: Waiting for a Drug Selling Conviction Can Cost Taxpayers Anywhere from Hundreds of Thousands of Dollars to Over a Half a Million

Take the case of Isaac Melendez-Carranza, an illegal alien from El Salvador, who was recently arrested for allegedly selling fentanyl to students at Park View High School in Loudoun County, Virginia. Investigators linked him to at least two student overdoses, though...