This manual outlines procedures for the handling of the sources of interrogations, the exploitation and processing of documents, and the reporting of intelligence gained through interrogation. It covers directing and supervising interrogation operations, conflict scenarios and their impact on interrogation operations, and peacetime interrogation operations. These principles, procedures, and techniques apply to operations in low-, mid-, and high-intensity conflicts; to the use of electronic warfare (EW; to the CI operations; and to the psychological operations (PSYOP). Sources for tactical interrogations may be civilian internees, insurgents, enemy prisoners of war (EPWs), defectors, refugees, displaced persons, and agents or suspected agents. Sources in strategic debriefings are emerges, refugees, resettles, and selected sources.