In regards to the CF hearing and Huber denying the two guys' evidence 3 times, it could be about OPSEC in case these two were spooks probing for the validity of an investigation. Or maybe Huber could be ensuring the chain of custody of evidence is not tampered with. He will collect all he can with his team and document it. If these two bring evidence he already has, at least he has a track record that his findings weren't tampered with.