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.
History of the Royal Military Police
The Provost Marshal has always had men detached to assist him, an arrangement formalised by the Duke of Wellington in the Peninsula War; but only since 1877 has there existed a regular corps of military police. In that year, the Military Mounted Police (MMP) was formed, followed by the Military Foot Police (MFP) in 1885. The Military Mounted Police first engaged in combat in 1882 at the Battle of Tel el-Kebir. Although technically two independent corps, the two effectively functioned as a single organisation. In 1926 they were fully amalgamated to form the Corps of Military Police (CMP). In recognition of their service in the Second World War, they became the Corps of Royal Military Police (RMP) on 28 November 1946 under Army Order 167.