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Serving Those Who Protect … Protecting Those Who Serve

Within the Department of the Navy, the Naval Criminal Investigative Service is the civilian federal law enforcement agency uniquely responsible for investigating felony crime, preventing terrorism and protecting secrets for the Navy and Marine Corps.

NCIS will defeat threats from across the foreign intelligence, terrorist and criminal spectrum by conducting operations and investigations ashore, afloat, and in cyberspace, in order to protect and preserve the superiority of the Navy and Marine Corps warfighters.

Comprised of about 2,000 personnel, with more than 1,000 serving as federal Special Agents, NCIS is unique among U.S. military criminal investigative organizations as it is a civilian-ran agency and is headed by a civilian law enforcement professional who reports directly to the Secretary of the Navy.

Today, NCIS operates in approximately 191 locations, in more than 41 countries. Given the organization's worldwide forward presence, NCIS is often the first federal law enforcement agency on the scene when U.S. interests overseas are affected. In addition to serving at major naval commands around the world, NCIS Special Agents deploy aboard all Navy aircraft carriers and with amphibious task forces. NCIS agents routinely conduct advances before U.S. Navy ships visit non-Navy ports, working with domestic and foreign counterparts to identify and mitigate security threats. NCIS also conducts protective service operations for senior naval officials and visiting dignitaries.

The agency's global beat, relatively modest force structure, and jurisdictional mosaic – NCIS frequently operates in locations where local, state, or foreign law enforcement agencies have primary jurisdiction – means that partnering with other law enforcement entities is essential. NCIS agents routinely work with local, state, federal, and foreign law enforcement and security agencies to address criminal incidents, identify and mitigate threats to U.S. naval forces and assets, and pursue joint proactive operations.

As part of its ongoing effort to expand its ties with other agencies, NCIS personnel often provide law enforcement and security force training, share "lessons learned" in behavioral assessment, host seminars on Cold Case resolution, and more. NCIS has also pioneered information-sharing between federal, state, and local law enforcement agencies with its Law Enforcement Information Exchange (LInX) program, enabling unprecedented exchanges of criminal data between agencies in eight major regions of the U.S. Overseas; NCIS has also spearheaded new efforts to share information with counterpart agencies.

NCIS continues to support and pursue new and innovative ways to partner with the international law enforcement community, and is always seeking new partners.



NCIS is a civilian law enforcement agency with a mission focus to investigate and defeat threats to the U.S. Navy and Marine Corps.


NCIS Director Omar Lopez reports directly to the Secretary of the Navy. This alignment ensures a close relationship with the uniformed Naval services and a valuable objectivity.


Our strategic goals are and will remain consistent: prevent terrorism, protect secrets and reduce crime.


Our mission requires dynamic partnerships with the DON and with other law enforcement organizations locally and globally.


NCIS operates from 18 field offices and 191 satellite sites including offices in 41 foreign countries and every Navy aircraft carrier.


Our most valuable resource is our highly skilled, diverse, and agile workforce. Join the NCIS family of Special Agents, analysts, and professional staff.