The Clandestine HUMINT page deals with the functions of that discipline, including espionage and active counterintelligence. This page deals with Clandestine HUMINT operational techniques, also called "tradecraft". It applies to clandestine operations for espionage, and for a clandestine phase prior to direct action (DA) or unconventional warfare (UW). Clandestine HUMINT sources may also act as local guides for special reconnaissance (SR).
Many of the techniques here are important in counterintelligence. Defensive counterintelligence personnel need to know them to recognize espionage, sabotage, etc. in process. Offensive counterintelligence specialists may actually use them against foreign intelligence services (FIS). While DA and UW can be conducted by national military or paramilitary organizations, al-Qaeda and similar non-state militant groups appear to use considerably different clandestine cell system structure, for command, control, and operations, than do national forces. Cell systems are evolving to more decentralized models, sometimes because they are enabled by new forms of electronic communications.
This page deals primarily with one's own assets. See double agent for additional information adversary sources that a country has turned to its own side.
This description is based around the foreign intelligence service, of country B, operating in and against country A. It may also include operations against non-state organizations operating in country B, with or without country B support. It may also involve offensive counterintelligence against country D assets operating in country B.
The basic structure here can be pertinent to a domestic service operating against a non-national group within its borders. Depending on the legal structure of the country, there may be significant, or very few, restrictions on domestic HUMINT. The most basic question will be whether criminal prosecution, or stopping operations, is the goal. Typically, criminal prosecution will be the primary goal against drug and slavery groups, with breaking up their operations the secondary goal. These priorities, however, are apt to reverse in dealing with terrorist groups.
If there are separate organizations with diplomatic and nonofficial cover, there may be two chiefs. Sufficiently large stations may have several independent, compartmented groups.