FL - I find your response bizarre. The general overview and various regulatory references have been set out as you say. The regulation however does allow reports to be used if the state sees fit - hence the debate one assumes? Other points are being challenged by the various questions in the last post.
The biggest threat to safety in the two accidents cited by others here seem more closely related to the conclusions in the report than the use of that report subsequently in court. When I posed that as a question you said "answer, no".