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Mass Shootings in California

By Heather Harris

Although California’s mass shooting homicide rate is lower than the national average, a mass shooting occurs here every eight days on average.

blog post

Crime Trends in Context

By Magnus Lofstrom

At a town hall held by Congressman Mark DeSaulnier, PPIC’s Magnus Lofstrom discussed what research has found about the consequences of key criminal justice reforms and the pattern of long-term crime trends in California and Contra Costa County.

blog post

Video: Responding to the Youth Mental Health Crisis

By Vicki Hsieh

PPIC’s Lande Ajose talks with an expert panel about the mental health challenges facing children and adolescents and efforts underway to promote their emotional well-being.

blog post

Two Years of Wide Variation in Crime Trends

By Magnus Lofstrom, Brandon Martin

Increases in crime during the first year and a half of the pandemic—particularly in homicide and aggravated assault—have been troubling, but most crime numbers are now relatively close to the low levels seen over the last decade.

Report

Police Use of Force and Misconduct in California

By Deepak Premkumar, Alexandria Gumbs, Shannon McConville, Renee Hsia

Nearly 200 Californians die each year in police encounters. Amid growing concern over civilian deaths and racial injustice, we examine what the existing data can—and cannot—tell us about police use of force and misconduct. We also offer recommendations for strengthening the state’s ongoing efforts to improve police transparency and accountability.

Report

Racial Disparities in Law Enforcement Stops

By Magnus Lofstrom, Joseph Hayes, Brandon Martin, Deepak Premkumar

Recent debate over police reforms has centered on how law enforcement engages with people of color, prompted by continuing concerns over racial inequities in criminal justice. In our analysis of data for nearly 4 million stops, we examine how interactions—ranging from search to use of force—differ for Black and white people, while considering factors such as stop context and law enforcement agency.

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