1. In any instance when any person is believed to have committed an act which if committed by an adult would be assault in the first, second or third degree, sexual assault, or deviate sexual assault against a pupil or school employee, while on school property, including a school bus in service on behalf of the district, or while involved in school activities, the principal shall immediately report such incident to the appropriate local law enforcement agency and to the superintendent, except in any instance when any person is believed to have committed an act which if committed by an adult would be assault in the third degree and a written agreement as to the procedure for the reporting of such incidents of third degree assault has been executed between the superintendent of the school district and the appropriate local law enforcement agency, the principal shall report such incident to the appropriate local law enforcement agency in accordance with such agreement.

2. In any instance when a pupil is discovered to have on or about such pupil’s person, or among such pupil’s possessions, or placed elsewhere on the school premises, including but not limited to the school playground or the school parking lot, on a school bus or at a school activity whether on or off of school property any controlled substance as defined in section 195.010 or any weapon as defined in subsection 6 of section 160.261 in violation of school policy, the principal shall immediately report such incident to the appropriate local law enforcement agency and to the superintendent.

3. In any instance when a teacher becomes aware of an assault as set forth in subsection 1 of this section or finds a pupil in possession of a weapon or controlled substances as set forth in subsection 2 of this section, the teacher shall immediately report such incident to the principal.

4. A school employee, superintendent or such person’s designee who in good faith provides information to law enforcement or juvenile authorities pursuant to this section or section 160.261 shall not be civilly liable for providing such information.

5. Any school official responsible for reporting pursuant to this section or section 160.261 who willfully neglects or refuses to perform this duty shall be subject to the penalty established pursuant to section 162.091.