Mission
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.
Property Crimes 

In the interest of maintaining a high quality of life for U.S. Sailors and Marines, NCIS Special Agents typically investigate crimes involving the removal, damage or destruction of personal property valued at $2,500 or more.

NCIS also generally investigates crimes against government property valued at $5,000 or more, as well as cases involving property considered to be especially sensitive, such as weapons, explosives or ammunition. Offenses such as wrongful destruction and arson also receive special attention, as they can have a serious impact on military readiness.

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