Permitted and trained school staff permission to carry firearms

This bill allows school staff with valid firearm permits to carry weapons on school property after completing annual training. It requires the Bureau of Criminal Apprehension to provide free, annual active-shooter response training to teachers and employees at public K-12 schools, charter schools, and postsecondary institutions. The bill amends criminal penalties to clarify that permitted staff carrying firearms on school grounds will face only a misdemeanor charge (not a felony), while maintaining restrictions for others. It specifically applies to staff who already hold permits under Minnesota law, with no new permit eligibility created.