Formed in 1952 under the British colonial government of
Hong Kong (CAS Ordinance) and modelled after Civil Aid agencies in the
United Kingdom. As well, a youth section, CAS Cadet Corps, adds 3,232 volunteers to the regular 3,634 force. The concept was introduced during British rule, an organisation also found in Britain. A dedicated Civil Aid Service rescue training centre, with indoor and outdoor training areas, was opened by the governor on 15 November 1953 at Hawthorn Road, Happy Valley. The CAS used to be headquartered at Caroline Hill Road in
Causeway Bay. It moved to
Yau Ma Tei in 2006. The six-storey former CAS Headquarters is slated for demolition by the government. ==Duties==