text: _________________________________________________________________________________FM 2-22.3
  command health care directives, guidance, and SOPs, applicable to all
  detainees to ensure they are fit for interrogations. Detainees determined by
  medical personnel to be medically unfit to undergo interrogation will not be
  interrogated. Health care personnel will be on call should a medical
  emergency arise during interrogation. Health care personnel will report
  detainees’ conditions, as appropriate, to the commander. Health care
  providers shall not be placed in a position to advise on the application or
  duration of interrogation approach techniques.
  5-92. Wounded and otherwise injured detainees can be a valuable source of
  information. For evacuation purposes, medical personnel may classify
  detainees as walking wounded or sick or as non-walking wounded or sick.
  Walking wounded detainees are evacuated through normal evacuation
  channels. Non-walking wounded are delivered to the nearest medical aid
  station and evacuated through medical channels.
  5-93. HUMINT collectors may interrogate a wounded or injured detainee
  provided that they obtain permission from a competent medical authority
  and that the questioning will not delay or hinder medical treatment.
  Questioning will not delay the administration of medication to reduce pain or
  the evacuation of the detainee to where they may receive medical treatment,
  nor will interrogation be allowed if it would cause a worsening of the
  condition of the detainee. In most cases, this simply requires the HUMINT
  collector to ask the doctor, medic, or other medical personnel if it is all right
  to talk to the detainee.
  5-94. With the doctor’s permission, the HUMINT collector may talk to the
  detainee before, after, or during medical treatment. The HUMINT collector
  cannot at any time represent himself as being a doctor or any other type of
  medical personnel. Nor can he state, imply, or otherwise give the impression
  that any type of medical treatment is conditional on the detainee’s
  cooperation in answering questions.
  TYPES OF INTERROGATION OPERATIONS
  5-95. There are two general categories of interrogation operations: field
  interrogation operations and interrogation facility operations.
  FIELD INTERROGATION OPERATIONS
  5-96. Field interrogation operations constitute the vast majority of
  interrogation operations at echelons corps and below. Field interrogations
  include all interrogation operations not conducted at a fixed facility. Current
  doctrine emphasizes the placement of HCTs forward with maneuver units to
  provide immediate interrogation support while the information is fresh and
  the detainee may still be susceptible to approaches, due to the shock of
  capture. The rationale for this method of employment is twofold:
  • First, the pace of the modern battlefield no longer allows the luxury of
  waiting for a detainee to reach a collection point prior to interrogation.
  Commanders need more timely information, including HUMINT. Also,
  automated tools and improved communications now permit rapid
  transmittal of information from forward-deployed HCTs.