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Government / Updated 2026-10-26 / 2 min read

UK UFO Files: Search the National Archives and MOD Reports

Two official routes answer different questions: detailed archival files and short annual sighting lists.

Reviewed and maintained byGlobal UFO Archive Editorial DeskEditorial policy

Quick answer

Use The National Archives’ UFO research guide to locate surviving MOD records in Discovery. Use GOV.UK’s 1997–2009 annual lists for brief date, time, location and description entries. A listing records a report received; it does not certify an unusual aircraft or extraterrestrial origin.

Sources used

Key points

  1. Search by keyword and department.
  2. Save the full archival reference.
  3. Read the file beyond the annual row.
Original UFOUAP.net reading diagram. It illustrates the checks in this guide, not a sighting or experimental result. UFOUAP.net editorial diagram

Choose the right collection

The archive guide covers policy, parliamentary business, correspondence and sighting reports. Its online and reading-room routes have different date coverage. The MOD page is narrower: annual summaries for 1997–2009. Begin with a year and place in those lists, then look for a fuller file. Neither route should be described as a complete database of everything seen over Britain.

Sources: UFOs: research guide · UFO reports in the UK: annual lists, 1997–2009

Search Discovery without losing provenance

The guide suggests UFO, unidentified flying and saucers, with department codes DEFE, AIR, FCO and BJ. Try a place-name variant when a modern label fails. Record the complete reference, file title, covering dates and holding institution. Discovery includes descriptions from other UK archives, so a search result is not automatically a document held at Kew or available as a free scan.

Sources: UFOs: research guide

Why a missing result proves little

The National Archives notes that pre-1967 MOD policy destroyed UFO files at five-year intervals and that surviving files were later reviewed for release. A missing item may therefore reflect loss, indexing, date coverage or a different custodian. Test a broader date range and alternate terms before drawing a conclusion. Record the failed query instead of turning it into a claim of deliberate concealment.

Sources: UFOs: research guide

Keep an annual entry in proportion

A short description cannot substitute for witness interviews, radar data or a documented explanation. Quote its date and location as recorded, distinguish the reporting year from a later upload date, and check whether a conclusion is present at all. When comparing with a case article, cite the exact annual entry rather than saying merely that the case is “in the British files.”

Sources: UFO reports in the UK: annual lists, 1997–2009

FAQ

Are all British UFO files free to download?

No. Check each catalogue item’s access instructions. Some records require a reading-room visit, copies or paid research. A public description is not the same as a free digital file.

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Documents