"Air Accidents should be investigated by the AAIB (or national equivalent) and not by the police, unless there is a strong hint of criminal wrongdoings."
The police will treat every aircraft accident site as a crime site.
There is a lot of education needed in the police of what is needed in an accident scene and who has jurisdiction (oh how they do love to show who is in charge).
I think that it is difficult for the AAIB to take control off the police once they arrive at the scene.
I am aquatinted with some display pilots who fly the Hunter (and Sabre), can anybody say who the pilot was? Just initials will do if? PM if preferable.