Iowa Code § 452A.69: Hearings before state agency.

Hearings before a state agency authorized under the provisions of this chapter may be held at a site in the state as the state agency may direct. The state agency shall have the power to issue subpoenas including subpoenas duces tecum and to require the attendance of witnesses and the production of books, records and papers. In the event any person shall refuse to obey subpoena, or after appearing refuses to testify, the state agency shall certify the name of the person to the district court of the county where the hearing is being held and the court shall proceed with the witness in the same manner as if the refusal had occurred in open court.