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We have constables...appointed by the town board, some are serious, concerned citizens. Problem is, since it is either a no pay or low pay position, it very often attracts "wannabes", who want to wear a uniform, a gun and sometimes overstep their bounds.
We have a constable locally, who does provide some good services..collections. summons etc., and help with traffic control at times. He is also armed and directing at the local court on wednesday evenings...guides folks through metal detector etc.
He has sought ticket and arrest powers, but local govt has played that down. We had 2 constables, Tim and Fred.. but Fred passed away about 3 years ago, and far as I know his job has not been filled.
I think the position of constable is a vestiginal position, brought over by our early colonists, from
Britain..although I have not bothered to research it.