Whenever the commissioner believes that this chapter has been violated, the commissioner, at the expense of the insurer involved, may examine, at the offices of the insurer or insurance producer, whether located within or without this state, all books, records, and papers of the insurer or insurance producer and any books, records, and papers of any insured within this state, and may examine under oath, the officers, managers, and insurance producers of the insurer, or the insured, as to the violation.