text: _________________________________________________________________________________FM 2-22.3
  agency check (NAC). Upon favorable findings, these personnel are
  granted an equivalent of a Secret collateral clearance. This is the
  category of linguist most used by HUMINT collectors.
  • CAT III Linguists - US citizens who have native command of the target
  language and native command of the English language. These
  personnel undergo a screening process, which includes a special
  background investigation (SBI). Upon favorable findings, these
  personnel are granted an equivalent of a Top Secret (TS) clearance.
  CAT III linguists are used mostly for high-ranking official meetings
  and by strategic collectors.
  INTERPRETATION TECHNIQUES
  11-16. During the planning and preparation phase, the HUMINT collector, in
  collaboration with the interpreter, selects a method of interpretation. There
  are two methods:
  • Alternate Interpretation. The interpreter listens to the entire phrase,
  sentence, or paragraph. The interpreter then translates it during
  natural pauses in speech.
  • Simultaneous Interpretation. The interpreter listens to the source and
  translates what he says, just a phrase or a few words behind. The
  HUMINT collector should select the simultaneous method only if all
  the following criteria are met:
   The sentence structure of the target language is parallel to English.
   The interpreter can understand and speak English as well as the
  target language with ease.
   The interpreter has special vocabulary skills for the topics to be
  covered.
   The interpreter can easily imitate the HUMINT collector’s tone of
  voice and attitude for the approaches and questioning technique
  selected.
   Neither the collector nor the interpreter tends to get confused when
  using the simultaneous method of interpretation.
  11-17. If any of the above-mentioned criteria in the simultaneous method
  cannot be met, the HUMINT collector should use the alternate method. The
  alternate method should also be used when a high degree of precision is
  required.
  TRAINING AND BRIEFING THE INTERPRETER
  11-18. The HUMINT collector will need to train an individual who has no
  interpreter experience as well as remind a trained and certified interpreter of
  the basic interpreter requirements. The requirements include—
  • Statements made by the interpreter and the source should be
  interpreted in the first person, using the same content, tone of voice,
  inflection, and intent. The interpreter must not interject his or her own
  personality, ideas, or questions into the interview.