An official website of the United States government

Here's how you know

Official websites use .mil

A .mil website belongs to an official U.S. Department of Defense organization in the United States.

Secure .mil websites use HTTPS

A lock () or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

A Legacy of Service to his Country: At Nearly 100 Years Old, Former Sailor and NIS Special Agent Roy Mosteller Reflects on his Navy Career.

Joint Investigation Leads to Indictments of Chinese Nationals for Computer Hacking Campaign Targeting U.S. Government, Companies- Banner with hooded computer hacker

Local Drug Task Force Investigation Results in Seizures of Narcotics, Cash, Weapons - Banner.

NCIS Arrests Navy Reserve Sailor for Bribery and Attempting to Purchase Fraudulent CACs - Banner

NCIS Efforts Result in Guilty Plea for Plotting Attack on Naval Station Great Lakes

Naval Criminal Investigative Service Director Omar Lopez meets with leadership from the U.S. Customs and Border Control at the U.S.-Mexico border at the San Ysidro port of entry, Feb. 19, 2025.

NCIS Warns Sailors, Marines of Foreign Intelligence Gathering Threat - Banner featuring behind the scenes interview set

External website banner featuring----MIRAMAR, Calif. (Oct. 19, 2021) - An Naval Criminal Investigative Service (NCIS) Special Agent speaks with a United States Marine Corps pilot in front of a Lockheed Martin F-35 Lightning II aboard Marine Corps Air Station Miramar. (Photo by NCIS Public Affairs Specialist Ed Buice)

Have you seen us? Featuring NCIS Most Wanted individuals, Seeking Information individuals, and Missing Persons individuals.

Mission of NCIS

Naval Criminal Investigative Service (NCIS)

Aug. 1, 2024 | By Todd Beveridge

Read the latest in the world of NCIS

click to view the full story

Former Sailor and NIS Special Agent Roy Mosteller

A Legacy of Service to his Country

Local Drug Task Force Investigation

Local Drug Task Force Investigation Results in Seizures of Narcotics, Cash, and Weapons

This website has been seized - banner: justice.gov and ic3.gov

Joint Investigation Leads to Indictments of Chinese Nationals for Computer Hacking Campaign

3C Orion and P-8A Poseidon aircraft occupy the flight line at Naval Air Station Jacksonville.

Navy Sailor Arrested for Providing Fraudulent DoD Identification Cards for Illegal Chinese Nationals

NCIS Careers: Click to learn more

NCIS female Special Agent arresting another female, walking her in handcuffs to police vehicle.

NCIS male Cyber Specialist working at a computer with NCIS imagery and logos.

NCIS Intelligence Specialists sitting around conference table, some dressed in professional attire, some dressed in military attire.

NCIS Professional Staff pictured in front of computers working.

NCIS Interns pictured in front of NCIS headquarters talking with Director Omar Lopez.

Connect with NCIS on Social Media

@RealNCIS on X

“I look back on my career and I’m very proud,” he said. “I feel that I was of service to my country when I was active-duty in the @USNavy, and, of course, during the 22 years I was a Special Agent. I served honestly, bravely and well.”

“I look back on my career and I’m very proud,” he said. “I feel that I was of service to my country when I was active-duty in the @USNavy, and, of course, during the 22 years I was a Special Agent. I served honestly, bravely and well.”

At nearly 100 years old, Roy Mosteller sat down with us to reflect on his legacy of service to his country both as a @USNavy Sailor and as a Special Agent with #NCIS in the 1950s, 1960s, and 1970s. 🔗 Read more: https://t.co/d8qpl9qfxL https://t.co/dCHOoojlZP

At nearly 100 years old, Roy Mosteller sat down with us to reflect on his legacy of service to his country both as a @USNavy Sailor and as a Special Agent with #NCIS in the 1950s, 1960s, and 1970s. 🔗 Read more: https://t.co/d8qpl9qfxL https://t.co/dCHOoojlZP

federal law enforcement partners the key operational support to interdict drug trafficking and keep our Sailors and Marines safe. #NationalSecurity #MissionFirst #NCISintheNews #Readiness #PartnershipsinAction #Security #Navy #MarineCorps #MissionSuccess #DefendingtheHomeland

maritime security briefs to all incoming command staff of new warships assigned to CTF-150, including those belonging to the United State, France, New Zealand, Canada, and the United Kingdom. NCIS’s expertise in criminal analytics and specialized technology provides our …

NCIS Special Agents serve as law enforcement advisors aboard CTF-150 warships, providing command staff with specialized equipment as well as interviewing expertise and knowledge of smuggling trends. The TCU has deployed aboard CTF-150 warships since 2012 and provides …

more than $6 million from a stateless dhow in the Indian Ocean. CTF-150 conducts maritime security operations to ensure that legitimate commercial ships can transit the region free from non-state threats involved in illicit narcotics and weapons trafficking. …

Last week, an #NCIS Transnational Crime Unit Special Agent assigned to the @HMSLANCASTER participated in a Combined Task Force 150 maritime security operation that resulted in the seizure of 350 kilograms of heroin and 100 kilograms of methamphetamine valued at … https://t.co/MTp7f3CGzo

https://t.co/3MuOK6gVo2

By working with international law enforcement partners like the AFP, NCIS strengthens global security, leveraging critical resources to protect @USNavy and @USMC warfighters and assets from criminal and terrorism threats worldwide.

This partnership enhances joint efforts to combat transnational organized crime across the @INDOPACOM and @USPacificFleet areas of operation.

#NCIS EAD for Pacific Ops Brad Duckworth and @AusFedPolice Assistant Commissioner Sandra Booth, #AUKUS Command, met earlier in March to extend a long-standing memorandum of understanding between NCIS and the Australian Federal Police. https://t.co/VXyEFSCeUn

If you have information on suspected drug activity, report it to NCIS via the NCIS Tips app or at https://t.co/NdMdnAkBpq. Reports can be made anonymously. #StaySafe #NCISTips

This drug and alcohol awareness briefing kicked off a week-long information campaign by NCIS and the Naval Academy, equipping midshipmen with the knowledge to make safe choices, recognize the risks of illicit drug use, and report suspicious activity. ...

Think before you take— #OnePillCanKill. An #NCIS Investigator recently briefed @USNavalAcademy midshipmen on the dangers of fentanyl and other illicit narcotics as they prepared to leave for spring break. Even one counterfeit pill can have deadly consequences. ... https://t.co/LH7O7Kz2LO

#ICYMI: Former #Navy Sailor pleaded guilty in federal court to conspiring to attack Naval Station Great Lakes on behalf of Iran’s Islamic Revolutionary Guard Corps while he was on active duty. 🔗 Read more: https://t.co/v1UiocyBaB #NCIS #NationalSecurity #MissionFirst https://t.co/UM11LSJx4C

#ICYMI: Former #Navy Sailor pleaded guilty in federal court to conspiring to attack Naval Station Great Lakes on behalf of Iran’s Islamic Revolutionary Guard Corps while he was on active duty. 🔗 Read more: https://t.co/v1UiocyBaB #NCIS #NationalSecurity #MissionFirst https://t.co/UM11LSJx4C

#SafeguardingWarfighters #ForceProtection #NationalSecurity #MissionFirst #NCIS #NationalSecurity #NCISintheNews #Readiness #PartnershipsinAction #Security #Navy #MarineCorps #MissionSuccess #DefendingtheHomeland #DefendingourNation #LawEnforcement

#NCIS is a civilian federal law enforcement agency uniquely responsible for investigating felony crime, preventing terrorism, and protecting secrets for the U.S. Navy and U.S. Marine Corps. Read this recap of our latest stories: https://t.co/3potGJCkee https://t.co/myzc5Bqluv

14,679

Follow Us

Press Releases

Justice Department Charges 12 Chinese Contract Hackers and Law Enforcement Officers in Global Computer Intrusion Campaigns March 5, 2025

Naval Reservist Charged With Paying Bribe To Obtain Department Of Defense Identification Cards For Unauthorized Individuals, Including A Chinese National March 3, 2025

Former Navy Sailor Pleads Guilty to Plotting to Attack Naval Station Great Lakes in North Chicago Feb. 27, 2025

Lockheed Martin Corporation Agrees to Settle False Claims Act Allegations of Defective Pricing Feb. 6, 2025

NCIS Continues to Seek Information on Sailor Who Escaped Confinement Dec. 18, 2024