California Code, Welfare and Institutions Code - WIC § 12305.82

(a) In addition to its existing authority under the Medi-Cal program, the State Department of Health Care Services shall have the authority to investigate fraud in the provision or receipt of in-home supportive services.Counties shall also have the authority to investigate fraud in the provision or receipt of in-home supportive services pursuant to the protocols developed in subdivision (b). The department, the State Department of Health Care Services, and counties, including county quality assurance staff, shall work together as appropriate to coordinate activities to detect and prevent fraud by in-home supportive services providers and recipients in accordance with federal and state laws and regulations, including applicable due process requirements, to take appropriate administrative action relating to suspected fraud in the provision or receipt of in-home supportive services, and to refer suspected criminal offenses to appropriate law enforcement agencies for prosecution.

(c) If the State Department of Health Care Services concludes that there is reliable evidence that a provider or recipient of supportive services has engaged in fraud in connection with the provision or receipt of in-home supportive services, the State Department of Health Care Services shall notify the department, the county, and the county's public authority or nonprofit consortium, if any, of that conclusion.

(d) If a county concludes that there is reliable evidence that a supportive services provider or recipient has engaged in fraud in connection with the provision or receipt of in-home supportive services, the county shall notify the department and the State Department of Health Care Services of that conclusion.

(e) Notwithstanding any other provision of law, a county may investigate suspected fraud in connection with the provision or receipt of supportive services, with respect to an overpayment of five hundred dollars ($500) or less.

(f) The failure of a provider or a recipient to comply with program requirements may result in termination of his or her participation in the In-Home Supportive Services program, subject to all applicable federal and state due process requirements.