This manual provides doctrinal guidance, techniques, and procedures governing the employment of human intelligence (HUMINT) collection and analytical assets in support of the commander's intelligence needs. It outlines: - HUMINT operations. - The HUMINT collector's role within the intelligence operating system. - The roles and responsibilities of the HUMINT collectors and the roles of those providing the command, control, and technical support of HUMINT collection operations. This manual expands upon the information contained in FM 2-0. It supersedes FM 34-52 and rescinds ST 2-22.7. It is consistent with doctrine in FM 3-0, FM 5-0, FM 6-0, and JP 2-0. In accordance with the Detainee Treatment Act of 2005, the only interrogation approaches and techniques that are authorized for use against any detainee, regardless of status or characterization, are those authorized and listed in this Field Manual. Some of the approaches and techniques authorized and listed in this Field Manual also require additional specified approval before implementation.