Alfred that wasn't what I was trying to get across, I was trying to show that total honesty and openness by individuals in helping the investigation to move forward can and has as such, lead to prosecution of those individuals, and with human nature as it is, it means that vital evidence in determining the cause and thus preventing it happening again will be buried.
In the past there was always an open and frank exchange of information that would be given freely for the benefit of safety, unfortunately in the modern world of a blame culture, accidents, failings in procedures and errors no longer exist.
I am not saying that people should not be prosecuted if it is a blatant case, but I am saying that it does have a negative effect on flight safety, and I won't even mention the poor state of affairs where accountable managers come into it all.