How much power do they really have?
Two high-ranking officials at Pennsylvania State University—including the senior vice president in charge of the school's campus police force—face charges for perjury in a widespread sex-abuse scandal. A Penn State assistant coach has been accused of molesting eight underage boys since the late-1990s, and the Penn State police seem to have been aware of the allegations for more than a decade. Are campus security officers like regular cops, or do special rules apply?
It depends on the school. Most large colleges and universities set up full-fledged police departments on school grounds. These sworn officers have the same authority as any other members of the police—they carry weapons, make arrests, and enforce local, state, and federal laws. Smaller schools can contract out their security services to private firms, which supply the same sort of uniformed guards you might see at your local mall. Private security guards may be licensed to carry firearms, batons, or Tasers, but in general, they'll be limited to making citizen's arrests and detaining suspects until real police officers can arrive on the scene.