History: Cases from The National Archives - documents from the Fuchs case

The following images present a selection of documents from the case of Klaus Fuchs, the German-born nuclear physicist who spied for the Soviets during the 1940s. With the exception of the first document listed below, they are among declassified files held by the National Archives at Kew, London, and can be viewed by any person with a free National Archives pass. Most of the documents presented here are part of the files KV 2/1244 to KV 2/1270 ("Emil Julius Klaus FUCHS").

Click on the image you wish to view, the large version will open in a new window.

Image of VENONA intercept

Decrypted Soviet message describing a meeting between Klaus Fuchs and Harry Gold, his Soviet "handler". Codenames used in the message: GUS = Harry Gold; REST = Klaus Fuchs; COUNTRY = United States; ISLAND = Great Britain; ISLANDERS = British; ENORMOUS = Manhattan Project.
With thanks to the National Security Agency.

Photograph of the surveillance log on Klaus Fuchs, 27 September 1949

Log of MI5 surveillance on Klaus Fuchs for 27 September 1949.

Photograph of th report by William Skardon of interview with Klaus Fuchs (part 1), 21 December 1949Photograph of the report by William Skardon of interview with Klaus Fuchs (part 2), 21 December 1949Photograph of the report by William Skardon of interview with Klaus Fuchs (part 3), 21 December 1949Photograph of the report by William Skardon of interview with Klaus Fuchs (part 4), 21 December 1949Photograph of report by William Skardon of interview with Klaus Fuchs (part 5), 21 December 1949Photograph of the report by William Skardon of interview with Klaus Fuchs (part 6), 21 December 1949

Report by William Skardon of interview with Klaus Fuchs, 21 December 1949.

Photograph of the statement by Klaus Fuchs (part 1), 29 January 1950Photograph of the statement by Klaus Fuchs (part 2), 29 January 1950Photograph of the statement by Klaus Fuchs (part 3), 29 January 1950Photograph of the statement by Klaus Fuchs (part 4), 29 January 1950Photograph of the statement by Klaus Fuchs (part 5), 29 January 1950

Statement by Klaus Fuchs, 29 January 1950.

Photograph of the report on Klaus Fuchs' espionage contacts, February 1950

Report on Klaus Fuchs' espionage contacts, February 1950.

With the exception of the first item listed on this page, the documents presented here are the copyright of The National Archives. See further information about Crown copyright and licensing arrangements (new window).