Department of Defense
INSTRUCTION
NUMBER 5240.10
October 5, 2011
Incorporating Change 1, Effective October 15, 2013
USD(I)
SUBJECT: Counterintelligence (CI) in the Combatant Commands and Other DoD Components
References: See Enclosure 1
1. PURPOSE. This Instruction:
a. Reissues DoD Instruction (DoDI) 5240.10 (Reference (a)) in accordance with the
authority in DoDD 5143.01 (Reference (b)) to establish policy, assign responsibilities, and
provide procedures for CI activities in the DoD Components in accordance with DoD Directive
(DoDD) O-5240.02 (Reference (c)).
b. Establishes supporting Military Department CI Organizations (MDCOs) (formerly known
as “CI Lead Agencies”). MDCOs provide CI support, as required, to the headquarters of the
DoD Components in accordance with this Instruction.
2. APPLICABILITY. This Instruction applies to the OSD, the Military Departments, the Office
of the Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the
Office of the Inspector General of the Department of Defense (IG, DoD), the Defense Agencies,
the DoD Field Activities, and all other organizational entities within the DoD (hereinafter
referred to collectively as the “DoD Components”).
3. DEFINITIONS. See Glossary.
4. POLICY. It is DoD policy that:
a. Authorized CI activities shall be conducted in the DoD Components as part of an
integrated DoD and national effort in accordance with Reference (c).
b. CI investigations shall only be conducted by the MDCOs and in accordance with DoDI
5240.04 (Reference (d)).
