Cal. Veh. Code § 23518.5
The county, a court, any facility visited pursuant to the program, the agents, employees, or independent contractors of the court, county, or facility visited pursuant to the program, and any person supervising a probationer during the visitation, is not liable for any civil damages resulting from injury to the probationer, or civil damages caused by the probationer, during, or from any activities relating to, the visitation, except for willful or grossly negligent acts intended to, or reasonably expected to result in, that injury or damage and except for workers' compensation for the probationer as prescribed by law if the probationer performs community service at the facility as an additional term or condition of probation.
Ca. Veh. Code § 23518.5