Dominion Police
The Dominion Police, although the federal police of Canada, was mainly active in the Eastern Canada region, while the Royal Northwest Mounted Police handled the expansive and sparsely populated Northwest Territories of Western Canada. In May 1918, the 969-member Dominion Police was reassigned under the Department of Militia and Defence and became a civilian wing of the Canadian Military Police Corps (CMPC). In the early 1900s, the Royal Northwest Mounted Police had declined as the Northwest Territories was divided into new provinces and territories, and due to the general unpopularity of the force for conduct during industrial disputes such as the Winnipeg General Strike. On 1 February 1920, the civilian members of the CMPC, including the Dominion Police, were merged with the Royal Northwest Mounted Police to form the Royal Canadian Mounted Police as the new federal police force of Canada, and the CMPC was disbanded on 1 December 1920.
Royal Canadian Mounted Police
The RCMP is organized under the authority of the Royal Canadian Mounted Police Act. In accordance with the Act, it is headed by the Commissioner, who, under the direction of the Minister of Public Safety, has the control and management of the Force and all matters connected therewith. The RCMP is provided with a "senior executive committee" (SEC) which 
The Commissioner is assisted by Deputy Commissioners in charge of:The RCMP divides the country into divisions for command purposes. In general, each division is coterminous with a province (for example, C Division is Quebec). The province of Ontario, however, is divided into two divisions: National Division (Ottawa) and O Division (rest of the province). There is one additional division Depot Division, which is the RCMP Academy at Regina, Saskatchewan, and the Police Dog Service Training Centre at Innisfail, Alberta. The RCMP headquarters are located in Ottawa, Ontario.A detachment is a section of the RCMP which polices a local area. Detachments vary greatly in size. The largest single RCMP detachment is in the City of Surrey in British Columbia, with over a thousand employees. Surrey has contracted with the RCMP for policing services since 1951. The second-largest RCMP detachment is in Burnaby, also in British Columbia. Conversely, detachments in small, isolated rural communities have as few as three officers. The RCMP formerly had many single-officer detachments in these areas, but in 2012 the RCMP announced that it was introducing a requirement that detachments should have at least three officers.