text: FM 2-22.3 _________________________________________________________________________________
  6-25. If the source freely discusses information of PIR value, the screener
  normally exploits the information fully and completes a SALUTE report. (See
  Appendices H and I.) If the source’s knowledge of PIR information is
  extensive and he is freely giving the information, the senior screener and the
  OIC or noncommissioned officer in charge (NCOIC) of the interrogation or
  debriefing element are notified immediately. They decide if the screener
  should continue questioning the source or if the source should be handed off
  to another HUMINT collector. If source-associated documents contain PIR
  information, the collector will exploit them as fully as possible and write a
  SALUTE report. (See Appendix H.)
  6-26. The source normally is assigned a standard screening code. The
  screening code is an alphanumeric designation that reflects the level of
  cooperation expected from the source and the level of knowledgeability the
  source may possess. Table 6-1 shows the codes for assessing sources. Those
  sources assigned to the same category are interrogated in any order deemed
  appropriate by the interrogation or debriefing element.
  Table 6-1. Source Screening Codes.
  CCOODDEE CCOOOOPPEERRAATTIIOONN LLEEVVEELL
  11 RReessppoonnddss ttoo ddiirreecctt qquueessttiioonnss..
  22 RReessppoonnddss hheessiittaannttllyy ttoo qquueessttiioonniinngg..
  33 DDooeess nnoott rreessppoonndd ttoo qquueessttiioonniinngg..
  KKNNOOWWLLEEDDGGEEAABBIILLIITTYY LLEEVVEELL
  AA VVeerryy lliikkeellyyttoo ppoosssseessss PPIIRR iinnffoorrmmaattiioonn..
  BB MMiigghhtt hhaavvee IIRR iinnffoorrmmaattiioonn..
  CC DDooeess nnoott aappppeeaarr ttoo hhaavvee ppeerrttiinneenntt iinnffoorrmmaattiioonn..
  6-27. Figure 6-3 shows the order in which detainees in the assessed
  screening categories should be interrogated. Category 1-A sources normally
  should be the first priority to be questioned. Category 1-B and 2-A would be
  Priority II. Category 1-C, 2-B and 3-A would be next as Priority III sources,
  with 2-C, and 3-B being in the fourth group to be interrogated. Category 3-C
  sources are normally not questioned. This order ensures the highest
  probability of obtaining the greatest amount of relevant information within
  the available time. Screening codes may change with the echelon. The higher
  the echelon, the more time is available to conduct an approach. Appendix B
  discusses the reliability ratings of information obtained.