Hello Raw Data,
I can see how completely I have failed to explain what this new Australian legislation does.
You do not "Hinder an Investigation", as far as I can see, if you pull the CB before you fly. But you DO "Hinder an Investigation" if you fail to push the CB back in the moment something happens. Under Section 24(5), "conduct" includes an omission.
If the ATSB questions you, you CANNOT refuse to answer, even if the answer incriminates you. See Sections 32 and Section 47.
The essential point is this. If the Transport Safety Investigation Bill becomes law, our conventional freedoms have gone, as far as aircrew in Australian Airspace are concerned.