Cal. Gov. Code § 8228

The Secretary of State or a peace officer, as defined in Sections 830.1, 830.2, and 830.3 of the Penal Code, possessing reasonable suspicion and acting in his or her official capacity and within his or her authority, may enforce the provisions of this chapter through the examination of a notary public’s books, records, letters, contracts, and other pertinent documents relating to the official acts of the notary public.