This is the official website for the United States Naval Criminal Investigative Service. "NCIS is the primary law enforcement and counterintelligence arm of the United States Department of the Navy. It works closely with other local, state, federal, and foreign agencies to counter and investigate the most serious crimes: terrorism, espionage, computer intrusion, homicide, rape, child abuse, arson, procurement fraud, and more. NCIS is the Navy's primary source of security for the men, women, ships, planes, and resources of America's seagoing expeditionary forces worldwide. NCIS' three strategic priorities are to: Prevent Terrorism, Protect Secrets, and Reduce Crime."
Naval Criminal Investigative Service: http://www.ncis.navy.mil/