The term COP FRENCH can be broken down into two crossword solutions: NARC (4 letters) and BREST (5 letters). NARC stands for Narcotics Officer, which is a law enforcement officer who specializes in the investigation and enforcement of laws related to illegal drugs. BREST is a port city in northwestern France, located on the Bay of Biscay. It is the second-largest city in Brittany and the largest in Finistère.