the conditions better, he was suspicious of what the Germans were planning. After a carefully orchestrated row with the senior British NCOs at Blechhammer he persuaded the Commandant, Rittmeister Prinz Von Hohenlohe, to transfer him back to Stalag III-D. He arrived on 12 June 1943 where he was selected by Major Heimpel of the Gestapo to be senior British NCO of Special Detachment 517 based at Genshagen, in the Teltow-Fläming district of Berlin. Throughout all this time, while being distrusted by the British P.O.W.s, he was reporting to MI6 by coded letters, giving guidance on targets for bomber attacks. More particularly he was engaged in subverting the German proposal to form a British Free Corps to fight for Germany. His cohorts included opera singer Margery Booth, a fellow British spy, who on one occasion whilst entertaining the camp inmates sang before Hitler just after Brown had hidden secret documents in her dress; Hitler subsequently sent her red roses wrapped in a Swastika flag. Brown was instrumental in identifying the British traitor John Amery, and both Brown and Booth had contact with William Joyce (Lord Haw-Haw), and were recruited by Joyce as a broadcaster on the German Concordia radio service; both later identified him post war, and were witnesses at his trial. At one point Brown was confronted by Major Heimpel with a statement from a traitor giving details of Brown's espionage activities, but Brown blamed it on some of the Jewish inmates, saying they were out to destroy the idea of a British Free Corps. The Germans believed him, but Heimpel still believed that he was a secret agent, and when the British Free Corps were disbanded Himmler ordered Brown's arrest. As the Allied forces entered Germany, Brown and a friend managed to kill an SS Colonel, steal his car and make contact with US Army forces. However, once back with British forces he found himself facing a charge of aiding the enemy. Word of his secret work for the Allies soon came from London, and he was awarded the Distinguished Conduct Medal in recognition of his achievements. After the war he was the chief prosecution witness at 20 treason trials. Later life He wrote of his wartime exploits in a book, In Durance Vile (Hale 1981), concluding "...I was only able to do what I did because of my Christian belief which sustained me in my durance vile through