Cal. Bus. & Prof. Code § 6534
(a) The bureau shall maintain the following information in each licensee’s file, shall make this information available to a court for any purpose, including the determination of the appropriateness of appointing, continuing the appointment of, or removing, the licensee as a conservator, guardian, trustee, personal representative of decedent’s estate, agent under a durable power of attorney for health care, agent under a durable power of attorney for finances, or a position arising from an appointment as a professional fiduciary practice administrator, and shall otherwise keep this information confidential, except as provided in subdivisions (b) and (c) of this section: