Revealed: New evidence that executed wartime nurse Edith Cavell’s network was spying

It remains one of the most shocking episodes of the First World War: Edith Cavell, a British nurse, executed by firing squad for helping Allied soldiers to escape occupied Belgium.

The German claim that Cavell was a spy was vehemently denied by the British government and she became a national heroine whose death inspired tens of thousands to join up for the war effort.

But Dame Stella Rimington, the former director-general of MI5, has made a startling claim on the centenary of Cavell’s death.

In a BBC programme, she will assert that Cavell’s network was indeed smuggling intelligence back to the Allies.