text: _________________________________________________________________________________FM 2-22.3
  HUMINT COLLECTION AND RELATED ACTIVITIES
  1-14. HUMINT collection activities include these categories: tactical
  questioning, screening, interrogation, debriefing, liaison, human source
  contact operations (SCOs), document exploitation (DOCEX), and captured
  enemy equipment (CEE) operations. DOCEX and CEE operations are
  activities supported by HUMINT collection but usually are only conducted by
  HUMINT collectors when the CEE or captured enemy document (CED) is
  associated with a source being questioned. In some cases, these
  determinations may depend on legal distinctions between collection methods
  such as interrogation and debriefing. In others, the distinction is in the
  purpose of the questioning. For example, screening is used to identify the
  knowledgeability and cooperation of a source, as opposed to the other
  activities that are used to collect information for intelligence purposes.
  1-15. The activities may be conducted interactively. For example, a HUMINT
  collector may be screening a potential source. During the course of the
  screening, the HUMINT collector identifies that the individual has
  information that can answer requirements. He might at that point debrief or
  interrogate the source on that specific area. He will then return to screening
  the source to identify other potential areas of interest.
  1-16. HUMINT collection activities vary depending on the source of the
  information. Once the type of activity has been determined, leaders use the
  process of plan, prepare, execute, and assess to conduct the activity. The
  following are the different types of HUMINT collection activities.
  TACTICAL QUESTIONING
  1-17. Tactical questioning is expedient initial questioning for information of
  immediate tactical value. Tactical questioning is generally performed by
  members of patrols, but can be done by any DOD personnel. (See ST 2-91.6.)
  SCREENING
  1-18. Screening is the process of identifying and assessing the areas of
  knowledge, cooperation, and possible approach techniques for an individual
  who has information of intelligence value. Indicators and discriminators used
  in screening can range from general appearance, possessions, and attitude to
  specific questions to assess areas of knowledge and degree of cooperation to
  establish if an individual matches a predetermined source profile. Screening
  is not in itself an intelligence collection technique but a timesaving measure
  that identifies those individuals most likely to have information of value.
  1-19. Screening operations are conducted to identify the level of knowledge,
  level of cooperation, and the placement and access of a given source.
  Screening operations can also assist in the determination of which discipline
  or agency can best conduct the exploitation. Chapter 6 discusses screening in
  detail. Screening operations include but are not limited to—
  (cid:131) Mobile and static checkpoint screening, including screening of
  refugees and DPs.
  (cid:131) Locally employed personnel screening.