Section 321J.2B - Parental and school notification - persons under eighteen years of age1. A peace officer shall make a reasonable effort to identify a person under the age of eighteen who violates section 321J.2 or 321J.2A 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 the violation, whether or not the person is taken into custody, unless the officer has reasonable grounds to believe that notification is not in the best interests of the person or will endanger that person.2. The peace officer shall also make a reasonable effort to identify the elementary or secondary school which the person attends if the person is enrolled in elementary or secondary school and to notify the superintendent or the superintendent's designee of the school which the person attends, or the authorities in charge of the nonpublic school which the person attends, of the violation. 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 or the superintendent's designee, or the authorities in charge of the nonpublic school, of the violation. A reasonable attempt to notify the person includes, but is not limited to, a telephone call or notice by first-class mail.