Subdivision 1.  Teacher’s duty. A teacher in a nonpublic school participating in a school district chemical use program, or a public school teacher, who knows or has reason to believe that a student is using, possessing, or transferring alcohol or a controlled substance while on the school premises or involved in school-related activities, shall immediately notify the school’s chemical abuse preassessment team of this information. A teacher who complies with this section shall be defended and indemnified under section 466.07, subdivision 1, in any action for damages arising out of the compliance. Subd. 2.  Other reports. Nothing in this section prevents a teacher or any other school employee from reporting to a law enforcement agency any violation of law occurring on school premises or at school sponsored events.