Iowa Code § 27A.7: Victim of or witness to a crime — limitation on collection of information.

A local entity or a person employed by or otherwise under the direction or control of a local entity shall not ask for or collect any information from a victim of or witness to an alleged public offense or from a person reporting an alleged public offense, including the victim’s, witness’s, or person’s national origin, that is not pertinent to the investigation of the alleged public offense.