Cal. Civ. Code § 2080.4

Notwithstanding the provisions of Section 2080.3 or Section 2080.6, the legislative body of any city, city and county, or county may provide by ordinance for the care, restitution, sale or destruction of unclaimed property in the possession of the police department of such city or city and county or of the sheriff of such county. Any city, city and county, or county adopting such an ordinance shall provide therein (1) that such unclaimed property shall be held by the police department or sheriff for a period of at least three months, and (2) that thereafter such property will be sold at public auction to the highest bidder, with notice of such sale being given by the chief of police or sheriff at least five days before the time fixed therefor by publication once in a newspaper of general circulation published in the county, or that thereafter such property will be transferred to the local government purchasing and stores agency or other similar agency for sale to the public at public auction. If such property is transferred to a county purchasing agent it may be sold in the manner provided by Article 7 (commencing with Section 25500) of Chapter 5 of Part 2 of Division 2 of Title 3 of the Government Code for the sale of surplus personal property. If property is transferred to the local government purchasing and stores agency or other similar agency pursuant to this section, such property shall not be redeemable by the owner or other person entitled to possession. If the local government purchasing and stores agency or other similar agency determines that any such property transferred to it for sale is needed for a public use, such property may be retained by the agency and need not be sold.