California Penal Code Section 12651

Notwithstanding any other provision of law, any person may purchase, possess, or use a stun gun, subject to the following requirements: (a) No person convicted of a felony or any crime involving an assault under the laws of the United States, of the State of California, or any other state, government, or country or convicted of misuse of a stun gun under Section 244.5, shall purchase, possess, or use stun guns. (b) No person who is addicted to any narcotic drug shall purchase, possess, or use a stun gun. (c) No person shall sell or furnish any stun gun to a minor unless the minor is at least 16 years of age and has the written consent of his or her parent or legal guardian. Violation of this subdivision shall be a public offense punishable by a fifty dollar ($50) fine for the first offense. Any subsequent violation of this subdivision is a misdemeanor. (d) No minor shall possess any stun gun unless the minor is at least 16 years of age and has the written consent of his or her parent or legal guardian.