Certis, formerly Certis CISCO Security Private Limited and CISCO Security Private Limited, is one of the five commercial Auxiliary Police forces authorized to provide armed security officers to government organizations as well as private companies or individuals in Singapore. Certis originated from the Guard and Escort unit of the Singapore Police Force (SPF), which was separated from the SPF as the Commercial and Industrial Security Corporation (CISCO) in 1972 as a statutory board with a monopoly over most areas of the local private armed security industry.