Lexicon

Dry cleaning

The pre-meeting surveillance-detection routine an intelligence officer performs before approaching an operational meeting

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Dry cleaning, in tradecraft usage, is the pre-meeting surveillance-detection routine an intelligence officer performs before approaching an operational meeting. The routine consists of a series of pre-planned routes, transits, and observations whose purpose is to surface the presence of any surveillance team that may have picked up the officer earlier in the day and to break the operational meeting cleanly from any such pickup. The convention is that a meeting at which surveillance has been detected during the dry-cleaning routine is aborted; a meeting whose dry cleaning has surfaced no surveillance is approached only at the conclusion of the routine.

The operational architecture of a working dry-cleaning routine is substantial. The routine typically extends over several hours and across multiple modes of transit (foot, automobile, public transport in combinations chosen to surface the operational signatures of the principal surveillance methodologies — fixed-team automobile surveillance, walking surveillance, public-transport surveillance, electronic geolocation surveillance, and the increasingly important post-2010 CCTV-and-facial-recognition surveillance). The routes are designed to include "channelisation" segments (transits through choke points where surveillance must show itself in distinctive patterns to maintain coverage), "cleansing" segments (transits through environments where any earlier surveillance pickup must drop or substantially expose itself), and "observation" segments (positions from which the officer can observe the routes the officer has just transited for the surveillance signatures the routine is designed to surface).

The discipline of the routine is the discipline of not succumbing to the natural pressures that produce confirmation bias. The officer is expected to interpret ambiguous observations conservatively (treating possible surveillance as probable surveillance, aborting the meeting on the side of operational caution) and to interpret unambiguous-clean observations cautiously (recognising that a clean dry-cleaning routine in a high-surveillance environment may indicate that the surveilling service is operating with techniques the officer has not anticipated rather than that no surveillance is present). The classical institutional guidance — the CIA Directorate of Operations training tradition, the British Secret Intelligence Service tradition, the Russian and post-Soviet operational training literature — emphasises the discipline of conservative interpretation and the operational cost of meeting under uncertain dry-cleaning conditions.

The post-2010 evolution of urban surveillance environments has produced substantial subsequent institutional adaptation. The dense CCTV coverage of contemporary major-city environments, the increasing post-2018 deployment of facial-recognition surveillance integrated with CCTV networks, the geolocation surveillance available through cellular-telephone metadata, and the broader post-2010 expansion of the surveillance-state-and-private-sector data infrastructure has substantially raised the difficulty of conducting reliable dry cleaning in operational environments where the principal pickups may be passive (data-driven) rather than active (team-based). The institutional response — the "deep cleaning" routines documented in the post-2010 published HUMINT-tradecraft literature, the substantial institutional shift toward technical-collection-supported HUMINT operations, the partial retreat from operational meeting in dense-surveillance environments — is the principal contemporary modification of the long-established Cold War dry-cleaning discipline.

See also