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 Leadership 

NCIS Leadership

NCIS is a predominantly civilian agency, with civilian leadership reporting directly to the Secretary of the Navy.

This arrangement -- unique in America's military community -- provides both a close relationship with the uniformed naval services and a valuable objectivity. NCIS provides vital investigative and operational support to the Navy and Marine Corps every day, carrying out its responsibilities under the authority of the Secretary of the Navy.

This is an official U.S. Navy web site.
Naval Criminal Investigative Service
27130 Telegraph Road, Quantico, VA 22134

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