Rendlesham Forest Incident — UK Ministry of Defence Response

Rendlesham Forest Incident — UK Ministry of Defence Response

The MoD's Official Position

The UK Ministry of Defence's official position on the Rendlesham Forest Incident has been consistent since the early 1980s:

"The Ministry of Defence has never denied the incident occurred but has stated that it did not pose a threat to national security and was therefore not formally investigated."***

This position is notable for what it acknowledges: the MoD does not claim the incident did not occur. It states only that it was not investigated as a security matter because it was not deemed a threat.

The DI55 Assessment

The Defence Intelligence Staff — specifically DI55 (the scientific and technical intelligence branch responsible for assessing UFO reports) — received a copy of the Halt Memo and produced an internal assessment. The DI55 document concluded:

• The radiation readings were "significantly higher than the average background"***
• The report was "of interest to the Defence Intelligence Service"***

The DI55 assessment — released eventually under the Freedom of Information Act — has been cited by proponents as evidence that the MoD found the case more significant than its public position suggested. It has also been cited as partial official acknowledgment that the radiation readings were anomalous.

The Full MoD File

Over the years, UK Government files related to the Rendlesham incident were released in stages through the Freedom of Information Act and through proactive release by the National Archives. The full file — released in multiple tranches between the late 1990s and 2010s — contained:

• The Halt Memo (original recipient copy)
• The DI55 assessment
• Internal MoD correspondence about the case
• No evidence of a formal investigation being conducted
• No evidence of the MoD having any explanation for the events beyond Halt's memo

The completeness of the released file has been questioned by researchers including Nick Pope, who worked in the MoD's UFO desk and believes there may be additional classified documents not captured by the released file.

Nick Pope's Role

Nick Pope*** worked for the UK Ministry of Defence from 1985 to 2006. From 1991 to 1994, he ran the MoD's UFO desk — officially titled Secretariat (Air Staff) 2a*** — making him the official government UFO investigator for that period.

Pope concluded that the Rendlesham incident was one of the strongest cases in the MoD's files and that the institutional response had been inadequate. After leaving the MoD he became a public advocate for the case and co-authored Encounter in Rendlesham Forest with Penniston and Burroughs in 2014.

Pope's internal position provides important context: an official within the MoD who had access to the complete file concluded the case warranted more serious investigation than it received.

The "No Threat to National Security" Formula =

The standard MoD formula — "no threat to national security" — has been applied to virtually every UFO case the MoD addressed. Critics argue this formula is designed to avoid investigation rather than to genuinely assess cases: if something does not threaten security, it is not investigated, regardless of what it might be. Under this formula, a genuine anomalous phenomenon that was not hostile would be dismissed the same way as a simple misidentification.