The Criminal Investigation Unit may have been merged with the DA Squads to form the Criminal Investigations Squads, several DA's Offices have NYSP Investigators assigned to them. Also it appears that NYSP Troop M lists these locations: SP Rockaway, SP Bronx, SP Brooklyn, SP Staten Island, and Manhattan Station which I think is Wards Island. There also appears to be a NYC Airports assignment, troopers seen at LGA and Kennedy.