text: FM 2-22.3 _________________________________________________________________________________
  individual identified through social and professional status, leads, source
  profiling, or other techniques, who has knowledge required by the
  commander. A developmental lead is any person the HUMINT collector
  expects to see or would like to see again, or a person who indicates that they
  intend to return in the future.
  5-14. When a HUMINT collector identifies a developmental lead, he reports
  his interest in elevating the source to continuous or formal contact status as
  soon as possible to the OMT. Although not every developmental lead becomes
  a source of information, the HUMINT collector should see each
  developmental lead as a potential source of information and apply the
  appropriate security measures. The developmental lead is continuously
  assessed to verify his placement and access to the type of information the
  HCT is seeking. Additionally, the HUMINT collector continuously assesses
  the motivation and characteristics of the developmental lead.
  5-15. A one-time source cannot be tasked to collect information, but can be
  sensitized to information in which the HUMINT collector is interested. For
  example, if a walk-in source provides information on activity in a house in his
  neighborhood, he might ask if the collector would be interested in more of the
  same type information in the future. The HUMINT collector cannot tell him
  to go get more information, but can indicate that he would listen if the walk-
  in returned with more information on the topic. If the walk-in returns a
  second time, he must be handled as a continuous contact.
  CONTINUOUS CONTACTS
  5-16. Continuous contacts are individuals who have been identified as
  having more information than could be obtained through a one-time contact,
  and have been met again by HUMINT collection personnel for the purpose of
  collecting additional information. HUMINT collectors do not task continuous
  contacts, but they can be sensitized in the same way as one-time contacts.
  Continuous contacts provide their knowledge through informal debriefings
  and elicitation.
  5-17. All contacts who are seen more than once by HUMINT collectors must
  be tracked by registering them in the Source Registry and reporting the
  contacts to the OMT. As an example, a one-time contact who reported
  information to a HCT contacts them again with follow-up information. That
  person will now be registered as a continuous contact and tracked by the
  OMT. This registration process helps to prevent the same information from
  being collected by multiple collectors from the same contact without realizing
  it. See AR 381-172 (S//NF) and FM 34-5 (S//NF) for further information on
  source registration and for the required forms. Types of continuous contacts
  are discussed below.
  Local National and Third-Country National Employees
  5-18. Local national and third-country national employees are non-US
  personnel from either the country in which the US forces are operating or a
  third country who are either employed by US forces directly or through a
  contractor to provide logistical support and services. One of the purposes of
  locally employed personnel screening is to assess these individuals as