Iowa Code Title XV. Judicial Branch and Judicial Procedures [Chs. 595-686] § 622.65. To whom directed--duces tecum

The subpoena shall be directed to the person therein named, requiring the person to attend at a particular time or place to testify as a witness, and it may contain a clause directing the witness to bring with the witness any book, writing, or other thing under the witness' control, which the witness is bound by law to produce as evidence.