Calif. governor signs law to limit police shooting

California Gov. Gavin Newsom has signed a measure aimed at discouraging shootings by police.

Newsom says the law he approved today will reduce the number of lives lost and begin to heal communities.

The measure by Democratic Assemblywoman Shirley Weber from San Diego will change California's existing deadly force standards to require that deadly force may only be used when necessary. The Democratic governor says it will encourage law enforcement to try de-escalation techniques such as verbal persuasion and other crisis intervention methods.

It was spurred by last year's fatal shooting of Stephon Clark, whose death sparked major protests in the state capital and reverberated nationwide.

The measure passed with bipartisan support after major police organizations won concessions.