To
police, or to patrol like a policeman. Back formation from constabulary and constable (
Police station and policeman, in Great
Britain)
The Wire, S01E07:
Omar said 'lf l was hunting Mr
Bird, l would consider
the best package to be the red Dilly that's over there in Carrollton. That'
s if l happened to be *constabulating* like y'all.'
(Constabulating = continuous form of constabulate, an intransitive, dynamic verb)