Two are Montclair High School graduates, and the third is married to a woman whose family has called Montclair home for generations.
They have children in the school system, coach youth sports and "bleed Mountie blue" in the words of Sgt. Tyrone Williams, who heads the unit.
The trio's familiarity with Montclair is expected to give them an advantage in their new role. The unit is charged with getting to know residents and their concerns as a way to curb crime and increase quality of life throughout the town.
Here's a little background about each member of the CSU. You'll see them walking around in town in their casual Mountie blue uniforms, as well as at sports games and other community events.