Iowa Code § 915.44: Polygraph examinations of victims or witnesses — limitations.

1. A criminal or juvenile justice agency shall not require a person claiming to be a victim of sexual assault or claiming to be a witness regarding the sexual assault of another person to submit to a polygraph or similar examination as a precondition to the agency conducting an investigation into the matter.

2. An agency wishing to perform a polygraph examination of a person claiming to be a victim or witness of sexual assault shall inform the person of the following:

a. That taking the polygraph examination is voluntary.

b. That the results of the examination are not admissible in court.

c. That the person’s decision to submit or refuse a polygraph examination will not be the sole basis for a decision by the agency not to investigate the matter.

3. An agency which declines to investigate an alleged case of sexual assault following a decision by a person claiming to be a victim not to submit to a polygraph examination shall provide to that person, in writing, the reasons why the agency did not pursue the investigation at the request of the person.