Traffic cop is a job title for a law enforcement officer who is responsible for monitoring and regulating traffic on roads and highways. The term 'NARC' is an acronym for Narcotics Officer, which is a type of police officer who specializes in the investigation and enforcement of laws related to illegal drugs. The term 'NARCO' is an acronym for Narcotics and Organized Crime Officer, which is a type of police officer who specializes in the investigation and enforcement of laws related to organized crime and illegal drugs.