(a) The unlawful concealed carrying upon the person or within the vehicle of the carrier of any explosive substance, other than fixed ammunition, dirk, or dagger, as provided in Section 12020, the unlawful concealed carrying upon the person or within the vehicle of the carrier of any weapons in violation of Section 12025, and the unlawful possession or carrying of any item in violation of Section 653k is a nuisance.
(b) (1) Except as provided in paragraph (2), a firearm of any nature owned or possessed in violation of Section 12021, 12021.1, or 12101 or used in the commission of any misdemeanor as provided in this code, any felony, or an attempt to commit any misdemeanor as provided in this code or any felony, is, upon a conviction of the defendant or upon a juvenile court finding that an offense which would be a misdemeanor or felony if committed by an adult was committed or attempted by the juvenile with the use of a firearm, a nuisance. A finding that the defendant was guilty of the offense but was insane at the time the offense was committed is a conviction for the purposes of this section.
(2) A firearm is not a nuisance pursuant to this subdivision if the firearm owner disposes of his or her firearm pursuant to paragraph (2) of subdivision (d) of Section 12021.
(c) Any weapon described in subdivision (a), or, upon conviction of the defendant or upon a juvenile court finding that an offense which would be a misdemeanor or felony if committed by an adult was committed or attempted by the juvenile with the use of a firearm, any weapon described in subdivision (b) shall be surrendered to the sheriff of a county or the chief of police or other head of a municipal police department of any city or city and county or the chief of police of any campus of the University of California or the California State University or the Commissioner of the California Highway Patrol. For purposes of this subdivision, the Commissioner of the California Highway Patrol shall receive only weapons that were confiscated by a member of the California Highway Patrol. The officers to whom the weapons are surrendered, except upon the certificate of a judge of a court of record, or of the district attorney of the county, that the retention thereof is necessary or proper to the ends of justice, may annually, between the 1st and 10th days of July, in each year, offer the weapons, which the officers in charge of them consider to have value with respect to sporting, recreational, or collection purposes, for sale at public auction to persons licensed pursuant to Section 12071 to engage in businesses involving any weapon purchased. If any weapon has been stolen and is thereafter recovered from the thief or his or her transferee, or is used in such a manner as to constitute a nuisance pursuant to subdivision (a) or (b) without the prior knowledge of its lawful owner that it would be so used, it shall not be so offered for sale but shall be restored to the lawful owner, as soon as its use as evidence has been served, upon his or her identification of the weapon and proof of ownership.
(d) If, under this section, a weapon is not of the type that can be sold to the public, generally, or is not sold pursuant to subdivision (c), the weapon, in the month of July, next succeeding, or sooner, if necessary to conserve local resources including space and utilization of personnel who maintain files and security of those weapons, shall be destroyed so that it can no longer be used as such a weapon except upon the certificate of a judge of a court of record, or of the district attorney of the county, that the retention of it is necessary or proper to the ends of justice.
(e) This section does not apply to any firearm in the possession of the Department of Fish and Game or which was used in the violation of any provision of the Fish and Game Code or any regulation adopted pursuant thereto, or which is forfeited pursuant to Section 5008.6 of the Public Resources Code.
(f) No stolen weapon shall be sold or destroyed pursuant to subdivision (c) or (d) unless reasonable notice is given to its lawful owner, if his or her identity and address can be reasonably ascertained.
(Amended by Stats. 2003, Ch. 499, Sec. 5.)