12 (Vancouver) Service Battalion was created on 15 February 1965 and received royal assent in June 1977.

12 Military Police Platoon (12 MP Pl) is not attached to 12 Svc Coy, but works within the same armoury.

Their role is less comprehensive than that of Regular Force Military Police and includes the provision to the Department of National Defence of security and custodial services in both operational and non-operational theatres and on CF establishments; the protection of personnel, information and material against subversion, sabotage, espionage, terrorism and other forms of threat, the enforcement of discipline, the control and documentation of prisoners of war, NBC monitoring and traffic control in support of field operations.

The armoury includes: In addition to hosting 12 Svc Coy, the armoury also houses two Royal Canadian Army Cadets units, and one Royal Canadian Air Cadets unit: 2947 RCACC is affiliated to 12 (Vancouver) Service Coy and receives logistical and training support.

The museum collects, preserves, interprets and exhibits artifacts/archives related to 12 Service Battalion, its predecessor corps and other organizations connected to the military and social development of the unit.