A security officer (or security guard) is a person who is paid to protect property, assets, or people. Security guards are usually privately and formally employed civilian personnel. Security officers are generally uniformed and act to protect property by maintaining a high visibility presence to deter illegal and inappropriate actions, observing (either directly, through patrols, or by watching alarm systems or video cameras) for signs of crime, fire or disorder; then taking action and reporting any incidents to their client and emergency s...
Security guards generally need a high school diploma or GED, although some jobs may not have any education requirements. Some employers, however, prefer to hire security guards with higher education, such as a 2- or 4-year degree in police science or criminal justice.
Security guards work in a wide variety of places, including public buildings, retail stores, and office buildings. Gaming surveillance officers and investigators mostly work in the gaming industry and at casino hotels. They are employed only in those states, and on those Indian reservations, where gambling is legal.