Iowa Code Title XV. Judicial Branch and Judicial Procedures [Chs. 595-686] § 679B.10. Subpoenas--by whom served--fees

A subpoena or any notice may be delivered or sent to any sheriff, constable, or any police officer who shall forthwith serve the same, and make due return thereof, according to directions. Witnesses in attendance and officers serving subpoenas or notices shall receive the same fees as are allowed in the district court, payable from the state treasury, upon the certificate of the board that such fees are due and correct. The board shall have the same power and authority to maintain and enforce order at the hearings and obedience to its writs of subpoena as is by law conferred upon the district court for like purposes.