Lone MI5 agent: The officer was sent to infiltrate groups of traitors by security chiefs alarmed at the strength of support for Adolf Hitler (pictured) A lone MI5 agent went undercover to neutralise hundreds of Nazi sympathisers living in Britain during the Second World War, extraordinary secret papers reveal today. The officer, given the alias Jack King, was sent to infiltrate groups of traitors by security chiefs alarmed at the strength of support for Hitler. By posing as an undercover Gestapo officer, King was able to control groups of ‘Fifth Columnists’ who were trying to aid the Fascist cause. The Nazi sympathisers believed they were successfully passing secrets to Berlin – but all the while the information was being handed straight to MI5, say the newly declassified files released by the National Archives.
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Officer sent by security chiefs alarmed at strength of support for Hitler
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Controlled groups of 'Fifth Columnists' trying to aid Fascist cause
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Nazi sympathisers believed they were passing secrets to Berlin
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But all the while the information was being handed straight to MI5
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Extraordinary newly declassified files released by National Archives
@placeholder files state: ‘She was found to be so violently anti-British and so