What is the primary mission of the Air Force Office of Special Investigations?

• A. To develop new aircraft platforms.
• B. To handle base security and civil affairs.
• C. To conduct space surveillance and missile warning.
• D. To conduct criminal investigations and counterintelligence for the USAF.

Answer: (D)

AFOSI exists to protect the Air Force by conducting criminal investigations and counterintelligence. Its agents handle investigations into offenses involving Air Force personnel or property—such as fraud, drugs, major crimes, and other offenses—while also performing counterintelligence to detect, deter, and defeat threats from espionage, insider risk, and foreign intelligence services that could compromise operations. This focus on investigative and CI work is why it best fits the question. Other options describe roles handled by different parts of the Air Force: developing aircraft, base security and civil affairs, or space surveillance and missile warning.