The mission of the campus protective agency can include the following: observe, report, serve, protect, enforce, apprehend, or all of these. Historically, most institutions that enroll less than 15,000 students have determined that their campus agencies should serve them (accesses, flat tires, etc.) and protect them (patrols, escorts, preventive acts), but should not enforce or apprehend violators – especially if the violator is a campus community member.