where is ncis physically located?
The NCIS mission is to investigate and defeat criminal, terrorist, and foreign intelligence threats to the United States Navy and Marine Corps-ashore, afloat, and in cyberspace. NCIS Headquarters NCIS Headquarters is located in the Russell-Knox Building aboard Marine Corps Base Quantico, VA. As the center of operations for the entire spectrum of the NCIS mission, Headquarters oversees all of the field offices and their subordinate components. Naval Criminal Investigative Service Headquarters 27130 Telegraph Road Quantico, VA 22134