Dominion Police
The Dominion Police Force was the federal police force of Canada between 1868 and 1920, and was one of the predecessors of the Royal Canadian Mounted Police. It was the first federal police force in Canada, formed the year following the Canadian Confederation to enforce federal laws and perform policing duties for the Federal Government of Canada. On 1 February 1920, the Dominion Police was merged with the North-West Mounted Police to form the Royal Canadian Mounted Police as the new federal police force of Canada.
Metropolitan Police Mounted Branch
The Metropolitan Police Mounted Branch is the oldest part of the Metropolitan Police, having been formed in 1760 (some 38 years prior to the Thames Marine Police Force and 69 years prior to the formation of the Metropolitan Police) as the Bow Street Horse Patrol. The primary purpose of the Bow Street Horse Patrol was to patrol the turnpikes approaching London.