California Code, Government Code - GOV § 68097.7

Any person who pays or offers to pay any money or other form of consideration for the services of any employee of the Department of Justice who is a peace officer or an analyst in a technical field, peace officer of the Department of the California Highway Patrol, peace officer member of the State Fire Marshal's office, sheriff, deputy sheriff, marshal, deputy marshal, firefighter, or city police officer as a witness in any action or proceeding in connection with a matter regarding an event or transaction which he or she has perceived or investigated in the course of his or her duties in any manner other than as provided in Sections 68097.1, 68097.2, 68097.3, 68097.4, 68097.5, and 68097.6 is guilty of a misdemeanor, and any employee of the Department of Justice who is a peace officer or an analyst in a technical field, peace officer of the Department of the California Highway Patrol, peace officer member of the State Fire Marshal's office, sheriff, deputy sheriff, marshal, deputy marshal, firefighter, or city police officer who asks or receives a payment except as provided in Sections 68097.2 and 68097.4 is likewise guilty of a misdemeanor.