The commissioner may also issue subpoenas, administer oaths, and examine under oath any person for purposes of determining compliance with this section. Upon the failure or refusal of any person to obey a subpoena, the commissioner may petition a court of competent jurisdiction, and upon proper showing, the court may enter an order compelling the witness to appear and testify or produce documentary evidence. Failure to obey the court order shall be punishable as contempt of court. Every person shall be obliged to attend as a witness at the place specified in the subpoena, when subpoenaed, anywhere within the State. Every person shall be entitled to the same fees and mileage, if claimed, as a witness in a court of record, which fees, mileage, and actual expense, if any, necessarily incurred in securing the attendance of witnesses, and their testimony, shall be itemized and charged against, and be paid by, the company being examined.
HRS § 431:11-107