I'm doing some research on the Colditz Castle and the Escape deck. And some things I'm reading claim their plans violated the Geneva convention(which ironically, German POW camps didn't.) But the Geneva convention allows for care packages, fair treatment, etc. What was being violated by telling them how to escape? because the wording in some of the articles makes it sound like it was a horrible war crime.
Could you share the exact passage in question here? I'm not entirely sure I understand the question, but that context might help.