SOME FEDS is an acronym for four different types of federal law enforcement personnel. AGENTS are federal law enforcement officers employed by the Federal Bureau of Investigation (FBI). NARCS are Narcotics Agents, who investigate and enforce laws related to illegal drugs. GMEN are agents of the United States Department of Justice, commonly known as G-Men. TMEN are Treasury Agents, who investigate and enforce laws related to financial crimes. RAISES are Revenue Agents, who investigate and enforce laws related to taxes.