As I said some time ago in one of the other threads: If a number of dead and seriously injured people turn up on their patch, the Police are under a duty to investigate the circumstances and provide evidence to the CPS, who then decide if a prosecution is in order.
The Police don't have any choice about whether to carry out this investigation. In fact if you were to talk to any of the officers involved you would probably find that that they would rather *not* be doing it.
True, but as the police have no expertise in aviation accident research surely they must seek that from those that do, evidence that will have been gathered, examined and conclusions reached as to the cause, based on the evidence collated.
What extra can PC plod gain from that gathered evidence and the experts employed to determine the cause, if the police bring in a third party to view the said evidence, surely that can only come to the same conclusions or otherwise the evidence will be seen as flawed and also the findings.
Will there not be issues if some of that evidence was given to the AAIB confidentially?