Modifies provisions relating to medical providers' participation in criminal investigations

HB 1809 requires medical providers treating gunshot or deep stab wounds (at least one inch) to report specific patient information to law enforcement, including name/address if known, wound details, and treatment circumstances. It mandates emergency rooms to provide annual forensic evidence collection training to relevant staff, maintain secure storage for such evidence, and have access to specialized evidence collection kits. These kits, developed by health and public safety departments, must include forms and procedures for gathering wound evidence. The bill provides legal immunity for providers who report in good faith and participate in related investigations. It directly affects licensed medical providers and emergency room facilities in Missouri treating trauma patients with specified injuries.