(Credit: Reporter file photo) Shelter Island Police officers, along with Southampton Police officers coordinating with U.S. Homeland Security agents, arrested a Colorado man Friday morning in Southampton and charged him with possession of 2 kilograms (4.4 pounds) of a controlled substance. Police say Justin R. Parker, 36, of Pueblo was taken into custody for the possession of dimethyltryptamine (DMT), a hallucinogenic drug listed by state and federal statutes as a controlled substance. Mr. Parker was taken to Southampton Police Department headquarters Friday at about 11 a.m. where he was processed and held. After arraignment, Mr. Parker was remanded to the Suffolk County Correctional Facility pending further court action, police said.