Iowa Code § 10A.209: Power to secure evidence.

The director or commissioner, as applicable, may issue subpoenas, administer oaths, and take testimony in all matters relating to the duties required of the director or commissioner under this subchapter. Witnesses subpoenaed and testifying before the director or commissioner shall be paid the same fees as witnesses under section 622.69, payment to be made out of the funds appropriated to the department or division, as applicable.