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.
Aylesworth Bowen Perry
The force controlled postwar unrest. Perry was a principal adviser to the government during the Winnipeg General Strike in 1919. 
After the war, he reorganized the force as the Royal Canadian Mounted Police. By modernizing the force's equipment and methods, he transformed the frontier police to a modern national police force. In 1919, he worked out the details of the force's expansion and the move of its headquarters. The Force absorbed the Dominion Police, extended police services throughout Canada and moved headquarters from Regina, Saskatchewan, to Ottawa, Ontario. The Force emerged as the Royal Canadian Mounted Police in 1920.
By February 1, 1920, the Royal Canadian Mounted Police were operating throughout Canada. Perry retired from the Royal Canadian Mounted Police in 1923. He was conferred the equivalent military rank of major-general. He died in Ottawa, Ontario, on February 14, 1956, in his 96th year. He was the last surviving member of the "Old Eighteen" from Royal Military College of Canada.