High Court District Court Magistrates' Court Special courts and tribunals: Chief Executive Elections Legislative elections District council elections Consular missions in Hong Kong Hong Kong–China relations Hong Kong–Taiwan relations The Civil Aid Service (CAS) is a civil organisation that assists in a variety of auxiliary emergency roles, including search and rescue operations in Hong Kong.

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.

There are various types of vehicles in service for different uses including: The Mountain Search and Rescue Company (民安隊山嶺搜救中隊) or CAS MSaR consists of two search and rescue teams specializing in mountain terrain within Hong Kong (mainly in the New Territories).

The current crest of the force was adopted in 1997 to replace most of the British colonial symbols: Source: [1]