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Racial Disparities in Traffic Stops

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

Traffic stops have emerged as a key driver of racial disparities in law enforcement and an area of potential reform. Our new report examines whether certain types of traffic stops could be enforced in alternative ways that reduce racial disparities and risks to officers and civilians without jeopardizing public safety.

Policy Brief

Policy Brief: Racial Disparities in Traffic Stops

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

Our findings suggest that nighttime traffic stops for non-moving violations—especially those made by local police and sheriff departments—deserve consideration for alternative enforcement strategies. However, any changes need to be balanced against the possibility of hampering efforts to confiscate dangerous contraband, especially firearms.

blog post

Solid Majorities of Californians View Crime as a Problem

By Dean Bonner

Nearly two in three Californians, including solid majorities across most regions of the state, say that violence and street crime in their community are a problem. Three in ten statewide say violence and street crime are a big problem, an increase from prior to the pandemic.

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Housing

The high cost of housing poses a threat to the state’s economic future and widens inequality. Not surprisingly, Californians identify housing affordability and homelessness as among the most important issues facing the state. PPIC examines current and emerging housing needs and highlights the role of public policies in addressing the state’s housing crisis.

Report

Community College English in California’s New Era of Student Access

By Marisol Cuellar Mejia, Olga Rodriguez, Hans Johnson, Cesar Alesi Perez

Major assessment and placement reforms at the state's community colleges have all but eliminated remedial prerequisites. As a result, students are much more likely to complete college composition—the “gateway” transfer-level English course. However, more work is needed to address persistent racial equity gaps and pandemic challenges.

blog post

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

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

Community College Math in California’s New Era of Student Access

By Marisol Cuellar Mejia, Olga Rodriguez, Hans Johnson, Cesar Alesi Perez

In fall 2019, California’s community colleges began implementing AB 705, making reforms to place thousands of students away from remedial courses and directly into the introductory courses necessary to transfer to a four-year college. In this report, we focus on math courses and the progress that colleges and students have made under the new system as of fall 2020.

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