The DoD OIG is headquartered in Alexandria, Virginia, and has more than 50 field offices located in the United States, Germany, Southwest Asia, and South Korea. We employ more than 1,750 dedicated professionals comprised of auditors, investigators, evaluators, and support personnel. Our diverse team of oversight professionals are committed to improving the DoD and is guided by our values of integrity, independence, and excellence.

Graphic of the structure of the Department of Defense Office of Inspector General.  Under the Inspector General are the Offices: Office of General Counsel, Office of Equal Employment Opportunity, Office of the Ombuds, Office of Professional Responsibility, Office of Legislative Affairs, Military Detachment, Principal Duty Inspector General and Chief of Staff.   Under the Chief of Staff is the office, Mission Support Team.  Under the Principal Deputy Inspector are the components: Audit, Evaluations, Defense Criminal Investigative Service, Administrative Investigations, Overseas Contingency Operations and Diversity and Inclusion and Extremism in the Military.


Audit conducts audits that address the DoD's top priorities and management challenges; promote the efficiency, effectiveness, and accountability of DoD programs and operations; and detect and deter fraud, waste, and abuse.

Evaluations conducts evaluations that promote the economy, efficiency, and effectiveness of DoD programs and operations.

Defense Criminal Investigative Service
The Defense Criminal Investigative Service investigates matters related to DoD programs and operations; to detect and deter fraud, waste, and abuse; and help ensure ethical conduct throughout the DoD.

Administrative Investigations
Administrative Investigations (AI) helps ensure ethical conduct throughout the DoD by conducting investigations and overseeing DoD Component investigations of allegations of misconduct by senior DoD officials, whistleblower reprisal, and Service member restriction from communication with an IG or Member of Congress.  AI also manages the DoD Hotline and the Contractor Disclosure Program, provides education and training on whistleblower protections through its Whistleblower Protection Coordinator, and facilitates voluntary resolution of whistleblower reprisal allegations through its Alternative Dispute Resolution program.

Overseas Contingency Operations
Overseas Contingency Operations coordinates comprehensive joint oversight and reporting on overseas contingency operations by the DoD OIG and other federal OIGs in fulfillment of the DoD IG’s Lead Inspector General responsibilities.

Diversity and Inclusion and Extremism in the Military
Diversity and Inclusion and Extremism in the Military is responsible for oversight of policies, programs, systems, and processes regarding diversity and inclusion in the Department of Defense and the prevention of and response to supremacist, extremist, and criminal gang activity in the Armed Forces.



Legislative Affairs and Communications
General Counsel
Equal Employment Opportunity
Mission Support Team