The police in Canada's ranks differ according to the different police forces and depend on different laws at the federal, provincial, and municipal levels.

The rank system of the RCMP is partly a result of their origin as a paramilitary force. Upon its founding on February 1, 1920, the RCMP adopted the rank insignia of the Canadian Army (which in turn came from the British Army), which is almost identical to that of the current Canadian Army. Like in the military, the RCMP also has a distinction between commissioned and non-commissioned officers. The non-commissioned ranks are mostly based on military ranks (apart from constable). Non-commissioned officer ranks above staff sergeant resemble those that formerly existed in the Canadian Army but have since been replaced by warrant officers. The commissioned officer ranks, by contrast, use a set of non-military titles that are often used in Commonwealth police services. The number of higher ranks, like chief superintendent and a deputy commissioner, has been added to and increased since the formation of the force, while the lower commissioned rank of sub-inspector has been dropped.

The PPS uses a similar ranks system to the RCMP, with the director being a chief superintendent on secondment from the RCMP. The officer-in-charge of PPS operations holds the rank of superintendent, team managers hold the rank of sergeant, supervisors hold the rank of corporal, and officers with no leadership responsibility hold the rank of constable.

Peace officer ranks for the Alberta Sheriffs Branch:

No traditional ranking system outside of the ceremonial unit is in place.

Abbotsford Delta Nelson Port Moody Surrey West Vancouver Victoria

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The Royal Newfoundland Constabulary is the provincial police service for the province of Newfoundland and Labrador.