Cal. Gov't Code § 29550
(a)
(b) The exemption of a local agency from the payment of a fee pursuant to this subdivision does not exempt the person arrested from the payment of fees for booking or other processing.
(c) As used in this section, “actual administrative costs” include only those costs for functions that are performed in order to receive an arrestee into a county detention facility. Operating expenses of the county jail facility including capital costs and those costs involved in the housing, feeding, and care of inmates shall not be included in calculating “actual administrative costs.” “Actual administrative costs” may include the cost of notifying any local agency, special district, school district, community college district, college, or university of any change in the fee charged by a county pursuant to this section. “Actual administrative costs” may include any one or more of the following as related to receiving an arrestee into the county detention facility: