CA Penal Code Section 25275

(a)

No person shall report to a local law enforcement agency that a firearm has been lost or stolen, knowing the report to be false. A violation of this section is an infraction, punishable by a fine not exceeding two hundred fifty dollars ($250) for a first offense, and by a fine not exceeding one thousand dollars ($1,000) for a second or subsequent offense.

(b)

This section shall not preclude prosecution under any other law.