[Canadian Army]

Here is what I came up for Law Enforcement Careers:

Justice of the Peace/Magistrate, who would dispense summary justice and deal with local criminal issues.

Arbitrator, who would resolve non-criminal disputes by hearing arguments and evidence, and rendering decisions.

Sheriff, who is the highest law enforcement officer of a county and commander of militia in that county.

Militia Member, an ordinary citizen who provide defense, emergency law enforcement, or paramilitary service, in times of emergency.

Deputy Sheriff, who assist the Sheriff in his/her duties.