The board of directors of each public school and the authorities in charge of each accredited nonpublic school shall prescribe procedures to report any use or possession of alcoholic liquor, wine, or beer or any controlled substance on school premises to local law enforcement agencies, if the use or possession is in violation of school policy or state law. The procedures may include a provision which does not require a report when the school officials have determined that a school at-risk or other student assistance program would be jeopardized if a student self reports.