NCIS is the investigative and counterintelligence arm of the Department of the Navy. NCIS works with local, state, federal and foreign law enforcement agencies. They investigate and counter crimes including terrorism, homicide, espionage, arson, child abuse and rape. Within the Navy they investigate felonies and crimes punishable under the Uniform Code of Military Justice. NCIS provides protective services for key Navy leaders. They also provide services to protect all members of the US Navy wherever they are serving.