"When a judge grants a restraining order, a gun owner has to surrender his or her weapon for 21 days while awaiting a hearing on whether the order will be extended for a full year. That’s not how due process works, said Craig DeLuz of the Firearms Policy Coalition, which advocates for gun owners."

Via the SF Chronicle: 

The California law allows immediate family members, current roommates and law enforcement officers to petition a court to remove guns from a person for up to a year. The process is similar to obtaining a domestic violence restraining order. People who are subject to what’s called a gun violence restraining order are also barred from buying firearms or ammunition...

California’s law has seldom been used in its first two years. Advocates say it just needs time to catch on. In the meantime, efforts are under way in the Legislature to expand the number of people who could go to court to try to take someone’s guns away to include co-workers and teachers.

That angers gun rights advocates, who say the law goes too far already. When a judge grants a restraining order, a gun owner has to surrender his or her weapon for 21 days while awaiting a hearing on whether the order will be extended for a full year. That’s not how due process works, said Craig DeLuz of the Firearms Policy Coalition, which advocates for gun owners.

“Due process that occurs after one’s rights have been taken away is in fact not due process,” DeLuz said...

“I think (restraining orders) will eventually be much more common,” said Garen Wintemute, an emergency room doctor at UC Davis Medical Center in Sacramento and director of the University of California Firearm Violence Research Center.

Read more here.