Skip to main content

Two years after violence intervention program launches in Fresno, gun-related crimes are cut by nearly half

Gun violence is now the number one cause of death for children and teenagers under age 19. Advance Peace, an organization that grew out of the successful Office of Neighborhood Safety in Richmond, California in 2018 and has since branched into other cities in California and around the country, works to reverse that trend.

A new analysis co-led by Jason Corburn and Mahasin Mujahid of UC Berkeley School of Public Health and Xing Gao of UC Merced, shows that Advance Peace has had a significant impact reducing gun violence in the city of Fresno, California.

In a paper published in PLOS ONE online, Corburn and colleagues found that in June 2023—two years after the program first launched in Fresno—there was a 46% decrease in the rate of both firearm homicides and injury shootings.

The researchers relied on firearm crime data from the Fresno Police Department. Corburn said that he was not aware of other interventions that have worked this well to curb gun-related crime in Fresno.

Fresno Mayor Jerry Dyer, who is also the former police chief, told a local news broadcast, “Advance Peace intervention specialists have done some great work out there. I know for a fact they’ve stopped shootings. I know that for a fact.”

The researchers noted several study limitations, among them the possibility that other factors might have influenced the reduction in firearm crimes. Some additional factors may have neighborhood sociodemographic changes, firearm availability and regulation, the COVID-19 pandemic, and sociopolitical issues.

An earlier study of Advance Peace in Richmond, California conducted by researchers at UC Berkeley and UCSF found that the initiative resulted in a 55% reduction in firearm homicides over six years.

Advance Peace Fresno is supported by the Fresno Economic Opportunities Commission, the US Department of Justice, and the California Violence and Intervention Prevention program (CALVIP), which requires evaluation of the program itself and its gun violence outcomes. Corburn is director of UCBPH’s Center for Global Healthy Cities, and is principal investigator on a grant evaluating the Advance Peace intervention in four cities, funded by Arnold Ventures.


Listen to The Other 80 Podcast Episode “Gun violence interruption in American cities with DeVone Boggan and Jason Corburn

Additional authors: Juan R. Cabrera of UCSF and David Padilla of UC Berkeley.

Funding: This study was funded by Arnold Ventures.

Two years after violence intervention program launches in Fresno, gun-related crimes are cut by nearly half © 2025 by UC Berkeley School of Public Health is licensed under CC BY-NC-ND 4.0 Creative Commons Credit must be given to the creator Only noncommercial use is permitted No derivatives or adaptations are permitted
  • What is CC BY-NC-ND 4.0?

    CC BY-NC-ND 4.0

    Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

    You are free to:
    • Share — copy and redistribute the material in any medium or format
    • The licensor cannot revoke these freedoms as long as you follow the license terms.
    Under the following terms:
    • BY Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
    • NC NonCommercial — You may not use the material for commercial purposes.
    • ND NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.
    • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
    Learn more: