VFX wrote:Another explanation is that there was a destruction of files to hide other criminal activity, such as wanton looting.
Since the content of these files were sent back to headquarters via radio, in code, what would have been the point in keeping paper copies in the field? Protocol may have demanded the files be destroyed after being telegraphed back to headquarters and the camp position abandoned. And that could have been true for all camps.
Even if the information was as innocuous as personnel records there is a good reason to get rid of these files in the field after they had been sent via radio in code. Unknown to the Germans the British had broken the Enigma code. However, they would have realized that probably every message sent, in code, had been recorded by the enemy and what was needed was a "key"
to decode them. If a large set of files such as what may have existed at Treblinka and they were found, captured, discovered, etc., during the war then comparing the dates of messages sent to radio messages in code recorded on those dates would provide that "key"
to crack the Enigma code.
Now the Enigma code machine had different settings for the wheel positions which were changed every day. However, even those setting are finite so if someone had messages for many hundreds of days, and thus hundreds of machine settings, a good code breaker could figure out the settings and thus have a means of reading future messages. It didn't matter what information the original messages contained.
I'm sure the Germans would have made this protocol, to destroy the records as such, for security reasons if anything else.