Iowa Code § 810.2: Nontestimonial identification order at request of defendant.

A person arrested for or charged with an offense may request a district court judge to order a nontestimonial identification procedure. If it appears that the results of specific nontestimonial identification procedures will be of material aid in determining whether the defendant committed the offense, the judge shall order such identification procedures involving the defendant under such terms and conditions as the judge shall prescribe.