Department of Defense Instruction 3115.08: Collection of Information on Non-U.S. Persons Outside the United States at the Request of U.S. Law Enforcement Agencies (LEAs) [open pdf - 120KB]
This instruction "reissues DoD Directive 3115.8 (Reference (a)) as a DoD Instruction in accordance with the authority in DoD Directive 5143.01 (Reference (b)) and establishes policy and assigns responsibilities in accordance with section 403-5a of title 50, United States Code, (U.S.C.) (Reference (c)) for DoD collection of information outside the United States as defined in accordance with section 195 of title 50 U.S.C. (Reference (d)) about individuals who are not U.S. persons."
DoD Instruction 3115.08; DoDI 3115.08
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/