text: _________________________________________________________________________________FM 2-22.3
  claimed to have received it, to the source’s known activities, may provide
  indications of truthfulness or deception on the part of the source.
  CONDUCTING MAP TRACKING
  9-35. Map tracking is a specific questioning skill that the HUMINT collector
  uses in all operations. It is a vital skill in supporting targeting and
  operational planning. Map tracking identifies and verifies key information by
  tracking the source's movement and activities within a specific area over a
  fixed period using a map or similar graphic aid. The area and the time
  involved are dependent on the collection requirements and the source’s
  knowledge level. Map tracking can occur at any point in the questioning
  process. Normally, the HUMINT collector begins map tracking as soon as his
  questioning identifies a priority disposition or activity that the source’s
  information can locate on the map.
  9-36. Map-tracking techniques, if properly applied, can extract information
  from friendly, neutral, or threat sources and can be used with individuals
  ranging from those with detailed map skills to illiterates, and those who have
  never seen a map. Through map tracking, the HUMINT collector pinpoints
  locations of any threat activity, threat dispositions, or any other priority
  terrain-related information, such as trafficability, known to the source.
  9-37. The HUMINT collector will determine these locations with the degree
  of fidelity needed to support operational requirements. The degree of detail
  needed may range from an 8-digit grid coordinate for unit locations to
  locations of specific buildings, rooms, or even items within a room. The
  HUMINT collector uses a variety of map-tracking aids including standard
  military maps, aerial photographs, commercial imagery, building blueprints
  and diagrams, and commercial road maps. Some advantages to map-tracking
  techniques include—
  • The source is led through his memory in a logical manner.
  • Discrepancies in the source's statements are easier to detect.
  • Locations are identified to support targeting and battlefield
  visualization.
  • Map tracking is a four-step process:
   Step 1: Determine the source’s map-reading skills.
   Step 2: Establish and exploit common points of reference (CPRs).
   Step 3: Establish routes of travel.
   Step 4: Identify and exploit key dispositions.
  DETERMINE THE SOURCE’S MAP-READING SKILLS
  9-38. The first step in the map-tracking process is to determine the specific
  map-reading skills of the source. This step only occurs the first time that the
  HUMINT collector map tracks a particular source. This information will
  determine what methodology will be used for the rest of the process. In this
  step the HUMINT collector is determining existing skills; he should not
  attempt to teach the source additional map skills at this time. The HUMINT
  collector can use prior knowledge, such as the fact that the source is illiterate
  or cannot read a map, to skip some of the specific parts of the process. Below