A hotly contested California gun-control law that was passed in 2007 is finally ready to be implemented, state Attorney General Kamala Harris said last week. The requirement that every new semiautomatic handgun contain "micro-stamping" technology would allow police to trace a weapon from cartridges found at a crime scene.
The law, signed by then-Gov. Arnold Schwarzenegger, made California the first state to require micro-stamping, which engraves the gun's serial number on each cartridge. But the legislation specified that it would take effect only when the technology was available and all private patents had expired.