Complex sentence: Fiedler also presents to the Tribunal a number of other proofs which pointed to Mundt being a double agent and claims that Mundt was captured during his work in England, and allowed to "escape" after he agreed to work for the British.
Split into simpler sentences: Fiedler also presents to the Tribunal a number of other proofs which pointed to Mundt being a double agent. He claims that Mundt was actually captured during his work in England and allowed to "escape" only after he agreed to work for the British.