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Countersurveillance refers to measures that are usually undertaken by the public to prevent surveillance, [1] including covert surveillance.Countersurveillance may include electronic methods such as technical surveillance counter-measures, which is the process of detecting surveillance devices.
Many additional types and techniques of covert interrogation and surveillance exist, and covert interrogation can occur for other various reasons, and by other types of actors. The term covert interrogation also refers to interrogation techniques that may be overt in manner, but are hidden [ 2 ] from public, media, governmental, and other types ...
As the name suggests, human intelligence is mostly collected by people and is commonly provided via espionage or some other form of covert surveillance. However, there are also overt methods of collection, such as via interrogation of subjects or simply through interviews.
In espionage, operatives under non-official cover (NOC) are operatives without official ties to the government for which they work who assume covert roles in organizations. This is in contrast to an operative with official cover, where they assume a position in their government, such as the diplomatic service , which provides them with ...
Some of the tactics, techniques, and procedures associated with black bag operations are lock picking, safe cracking, key impressions, fingerprinting, photography, electronic surveillance (including audio and video surveillance), mail manipulation (flaps and seals), and forgery. The term "black bag" refers to the small bags in which burglars ...
Teaching countersurveillance techniques to agents is a calculated risk. [11] While it may be perfectly valid for an agent to abort a drop or other relatively innocent action, even at the cost of destroying valuable collected material, it is much more dangerous to teach the agent to elude active surveillance.
National governments deal in both intelligence and military special operations functions that either should be completely secret (i.e., clandestine: the existence of which is not known outside the relevant government circles), or simply cannot be linked to the sponsor (i.e., covert: it is known that sabotage is taking place, but its sponsor is unknown).
A covert operation or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal the identity of the party responsible. [ 1 ] US law