Enters all buildings to conduct walk-throughs to ensure school property and equipment are safe; ensures entrances, exits, windows are secure, intact, closed and locked and the doors and locks function properly; performs exterior walk-throughs of the school campus to make sure all school buildings, heavy duty equipment, vehicles, and gates are safe and secure. Patrols school grounds verifying visitors and unauthorized vehicles; checks cars for parking authorization; ensure sure vehicles are not parked in restricted areas, such as, near fire hydrants or in driveways; checks exterior lighting and emergency access routes; enforces the speed limit on district grounds.