A Security Guard or Security Officer is usually a privately-employed person who is paid (directly or through a security firm) to protect property and/or people. Usually, security officers and security guards:
Wear a uniform
Act to protect property by maintaining a high visibility presence to deter illegal and/or inappropriate actions
Observing (either directly, through patrols, or by watching alarm systems or video cameras) for signs of crime, fire or disorder
Take action and/or report incidents to their client, employer and emergency services as appropriate
U.S. Department of Labor Bureau of Labor Statistics Occupational Outlook Handbook on Security Guards. Describes the nature of the work performed by security professionals, the security job outlook, information on training and advancement, how much a security guard may expect to earn, and more.
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