This unit group includes workers who guard and implement security measures to protect property against theft, vandalism and fire, control access to establishments, maintain order and enforce regulations at public events and within establishments, conduct private investigations for clients or employers and provide other protective services not elsewhere classified. They are employed by public or private security agencies, residential complexes, educational, cultural, financial and health institutions, retail establishments, businesses and industry, investigation service companies, transportation facilities, and organizations throughout the private and public sectors, or they may be self-employed.
A college diploma in law and security or police technology may be required. In Quebec, a permit issued by the Sûreté du Québec is required to work as a private detective or security officer. Security guards carrying firearms require a licence. Completion of secondary school is usually required.