Ministry of Defence (MoD) UFO Desk

Background and History

The UK’s official interest began with the Flying Saucer Working Party (1950–1951), a small scientific/intelligence group chaired under Sir Henry Tizard’s influence. Its June 1951 report (DSI/JTIC Report No. 7) concluded that sightings were explainable as misidentifications, natural phenomena, illusions, or hoaxes, and recommended no further investigation unless material evidence appeared. National Archives references include DEFE 44/119 and related DSI/JTIC files.

Despite that recommendation, the Air Ministry / later MoD continued to receive and file public and official reports. By the late 1950s–1960s a civilian secretariat desk (evolving through S6(Air), S4(Air), DS8, and Sec(AS)2) became the public “shop window.” Reports arrived by letter, police, civil aviation, or later a dedicated hotline/email. Desk officers (a relatively junior civil-service role, often one person plus admin support) logged them, issued standard replies stating that no defence significance had been found, and copied potentially interesting cases onward.

From approximately 1967, DI55 (a Defence Intelligence Staff branch primarily concerned with foreign missiles, spacecraft, and related technologies) received copies of reports for intelligence assessment. DI55’s interest was not publicised; officials sometimes sought to minimise or expurgate references to it in records destined for the Public Records Office / National Archives. A 1995 DI55 note observed that acknowledging the interest could lead to embarrassment because limited resources had prevented serious study of the thousands of reports received.

In the mid-1990s DI55 commissioned a formal study (later known as Project Condign). The resulting three-volume report, Unidentified Aerial Phenomena in the UK Air Defence Region (Scientific & Technical Memorandum 55/2/00, December 2000, originally Secret / UK Eyes Only), analysed a database of reports. It concluded that UAP were “indisputable” as observed phenomena but showed no evidence of hostile intent, extraterrestrial origin, or artefacts of unknown origin. It attributed many residual cases to rare atmospheric plasmas (and related natural effects) and noted possible flight-safety implications and potential military applications of plasma phenomena. After the report, DI55 ceased routine receipt of UFO reports.

The public desk continued under the Directorate of Air Space (DAS) after 2000, receiving an average of roughly 150 reports per year in the early 2000s, rising sharply to hundreds in 2008–2009 (partly linked to Chinese lanterns and media interest). In November 2009 a briefing to the Defence Minister stated that in more than 50 years no report had indicated an extraterrestrial presence or military threat, that there was “no defence benefit” in continued recording/analysis, and that the work diverted staff from higher-priority defence tasks. The hotline, email, and dedicated desk were withdrawn from 1 December 2009; subsequent reports were to be acknowledged with a standard letter and retained only briefly before destruction to limit FOI liability. The MoD reaffirmed in a December 2024 parliamentary answer that it ceased investigations in 2009 and maintains no dedicated team.

Between 2008 and 2013 (with a final tranche in 2013 covering the last years) the MoD transferred roughly 60,000 pages of UFO files to The National Archives, covering mainly the late 1970s–2009 and including well-known cases such as Rendlesham Forest. Many files remain searchable online.

Notable personnel associated with the public desk include Nick Pope (who worked the desk in the early 1990s and later wrote extensively about it). DI55’s role remained more opaque; its existence and UFO involvement were only gradually confirmed through FOI.

Official stance (consistent across decades)
The MoD examined reports solely for defence significance. No report had ever revealed evidence of a threat to the UK. Rational explanations (aircraft lights, natural phenomena, etc.) were presumed for the majority. The department had no expertise or role regarding extraterrestrial life.

Founding date discussion
Roots in the Flying Saucer Working Party (established August/October 1950 under the Directorate of Scientific Intelligence / Joint Technical Intelligence Committee; report issued June 1951). Continuous administrative handling of public reports developed from the late 1950s (S6(Air) and successors). DI55 assumed a formal assessment role for reports of possible defence significance around 1967.

Dissolution date Discussion
DI55 routine involvement ended in 2000 (following Project Condign). The public UFO Desk and hotline/email were closed effective 1 December 2009. The MoD has confirmed it ceased investigating UFO/UAP reports in 2009 and has not classified new material on the subject since.

Additional Links

Dr. David Clark’s page on the British Flying Saucer Working Party