I think that most people who need to know, know why the SIB, Police, MOD Plod etc etc were involved in this tragic accident. If you don't know why they were involved then you don;t need to know.
The correct proccess has been applied, the Police investigated and submitted their investigation to the CPS who in turn decided that there was no benefit in proceeding with the case any further. The inquest will be held IDC and until that is made public (if it ever is) then we should leave it at that. This accident is very sensitive so lets just leave it alone and wait until the inquest is held.