CA Fin Code Section 23048

(a)

The commissioner may require the attendance of witnesses and examine under oath all persons whose testimony the commissioner requires relative to transactions or business regulated by this division or to the subject matter of any examination, investigation, or hearing.

(b)

The commissioner may require the production for examination in this state of all books, records, and supporting data used by the licensee in the preparation of reports to the commissioner. The books, records, and supporting data shall be made available for examination by the commissioner in this state within 10 days after a written demand.