California Code, Welfare and Institutions Code - WIC § 15636

(a) Any victim of elder or dependent adult abuse may refuse or withdraw consent at any time to an investigation or the provision of protective services by an adult protective services agency or long-term care ombudsman program. The adult protective services agency shall act only with the consent of the victim unless a violation of the Penal Code has been alleged. A local long-term care ombudsman shall act only with the consent of the victim and shall disclose confidential information only after consent to disclose is given by the victim or pursuant to court order.

(b) If the elder or dependent adult abuse victim is so incapacitated that he or she cannot legally give or deny consent to protective services, a petition for temporary conservatorship or guardianship may be initiated in accordance with Section 2250 of the Probate Code.