United States Marine Corps Criminal Investigation Division

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United States Marine Corps Criminal Investigation Division
Abbreviation USMC C.I.D.
USMC CID badge.jpg
Badge design of the United States Marine Corps Criminal Investigation Division
Agency overview
Employees Approx.300
Legal personality Governmental: Government agency
Jurisdictional structure
Federal agency United States
General nature
Operational structure
Special Agent Federals 300 (approx)
Parent agency United States Marine Corps Law Enforcement Branch

United States Marine Corps Criminal Investigation Division (USMC C.I.D.) is a federal law enforcement agency that investigates crimes against persons and property within the United States Marine Corps.

Selection and training

CID Agent candidates must be currently serving as an enlisted active duty Marine between the grades of E-5 through E-9 or WO1 to CWO5. Civilian CID Agents must be employed in the government schedule (GS) 1811 series as a criminal investigator. All CID Agents must be able to obtain and maintain a Top Secret security clearance. Marine candidates must possess a GT score of 110 or higher, have normal color vision. Both Marine and civilian agents must meet Marine Corps physical fitness standards. Prospective Marine Corps CID agents are sent to the U.S. Army Military Police Schools (USAMPS) to attend the U.S. Army CID Special Agent Course (CIDSAC) at Fort Leonard Wood, MO, and must complete six months on-the-job training. Civilian CID agents either attend CIDSAC, or the Criminal Investigative Training Program (CITP) at the Federal Law Enforcement Training Center (FLETC) at Glynco, GA. Marine Corps CID agents may later return to USAMPS or FLETC to attend advanced or specialized training as may be directed.


CID is responsible for:[1]

  • Complex misdemeanor and felony investigations.
  • Investigation of narcotics cases.
  • Liaison with federal, state, and local law enforcement agencies.
  • Assist the U.S. Attorney's Office, local District Attorney's Office, and the Staff Judge Advocate Office for prosecution of criminal cases.
  • Maintaining the Provost Marshals Office / Marine Corps Police Dept. evidence repository.
  • Maintain a Criminal Intelligence component.
  • Conduct internal personnel inquiries
  • Protective Service Details / Executive Protection.
  • Liaison with Family Assistance Program concerning the law enforcement aspects of domestic violence issues.


Special Agents typically dress in professional business attire. Due to the nature of their work, undercover assignments and field work will typically dictate their attire.


CID Agents are issued the standard 9mm Sig Sauer.

See also

JAG Corps