Iowa Code § 124.415

A peace officer shall make a reasonable effort to identify a person under the age of eighteen discovered to be in possession of a controlled substance, counterfeit substance, simulated controlled substance, or imitation controlled substance in violation of this chapter, and if the person is not referred to juvenile court, the law enforcement agency of which the peace officer is an employee shall make a reasonable attempt to notify the person’s custodial parent or legal guardian of such possession, whether or not the person is arrested, unless the officer has reasonable grounds to believe that such notification is not in the best interests of the person or will endanger that person. If the person is taken into custody, the peace officer shall notify a juvenile court officer who shall make a reasonable effort to identify the elementary or secondary school the person attends, if any, and to notify the superintendent of the school district, the superintendent’s designee, or the authorities in charge of the nonpublic school of the taking into custody. A reasonable attempt to notify the person includes but is not limited to a telephone call or notice by first-class mail.

90 Acts, ch 1251, §8C91, §204.415C93, §124.41594 Acts, ch 1172, §11; 95 Acts, ch 191, §5; 2017 Acts, ch 145, §14