a private person who is employed toprotect property and people

(garde de sécurité) - person whose primary duties involve the protection of information and assets

A Security Guard or Security Officer is usually a privately and formally employed person who is paid to protect property, and/or assets, and/or people. Often, security officers are uniformed and 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; then taking action and/or reporting any incidents to their client, employer and emergency services as appropriate.