"Presumption of guilt" - that's not going to fly is it?

I think the selective absence of evidence where it would normally exist is something that a jury (or investigating organization) should consider within the totality of the evidence presented. That way we can go start from a point of innocence and work our way through.

Why are there options to turn the audio off anyway? In the grand scheme of things what you are trying to protect by turning off audio is likely much less important than the criminal behavior that is coming under scrutiny.