LEONARDTOWN, MD. — Christopher Andrew Smith, 25, of Laurel, was on his way out of a St. Mary’s County drugstore with some Purple Drank when narco cops pounced on him, reports St. Mary’s Vice and Narco Commander Capt. Daniel Alioto. Alioto reports that Detectives continue to investigate prescription fraud incidents involving a group of individuals attempting to obtain “Promethazine-Codeine” known on the street as “Purple Drank”. A series of arrests involving the popular narcotics have been made in the past year.