A massive law enforcement operation on California’s Bay Bridge turned into a high-stakes trap for dozens of illegal street riders after police boxed in a roaming group of dirt bikes and ATVs that had spent nearly an hour overwhelming intersections across multiple Bay Area cities.

A California police officer shot and killed a "disturbed" man after he stole another officer's gun out of her hands in her patrol car, began chanting about Jesus and refused to comply with orders to put the weapon down. The Fountain Valley Police ...

Police activity had shut down both directions of Interstate 580, east of Isabel Avenue, in Livermore, according to the California Highway Patrol.

The police activity was the result of a two-month operation targeting a group of riders who police said took over city streets and generally disrupted public safety across the San Francisco Bay Area.

Set to take effect July 1, California's DMV issued a release announcing the adoption of new rules for autonomous vehicles.

California law enforcement agencies have confiscated large amounts of illegal fireworks ahead of the July 4th holiday. One bust in Los Angeles County yielded over 1,000,000 pounds of illegal fireworks. Fireworks not designated "Safe and Sane" are illegal ...

The new rule also requires manufacturers to ensure their self-driving vehicles move out of the way during emergencies

Police shot an armed suspect on the 210 Freeway in Sylmar on Tuesday afternoon after he was accused of fleeing onto the motorway on foot and attempting to carjack a vehicle, authorities said.

A new California bill will create a process allowing police officers to issue tickets to driverless cars if they commit traffic violations.