Cal. Ins. Code § 734
Every company or person from whom information is sought, and its officers, directors, employees, and agents, shall provide to the examiners appointed pursuant to this article, timely, convenient, and free access at all reasonable hours at its offices to all books, records, accounts, papers, documents, and any or all computer or other recordings relating to the property, assets, business, and affairs of the company being examined. The officers, directors, employees, and agents of the company or person shall assist the examiners and aid in the examination so far as it is in their power to do so. The commissioner shall have the power to issue subpoenas, to administer oaths, and to examine under oath any person as to any matter pertinent to the examination. If he or she finds the books to be carelessly or improperly kept or posted, he or she shall employ sworn experts to rewrite, post, and balance the books at the insurer's expense.
Ca. Ins. Code § 734