Also with the Heathrow incident the AIB were snowed under at the time with the Lockerbie and other inquiries. In my opinion there should have been a full AIB investigation and then a decision, if deemed necessary, to take the Captain to court.
As it was we had, if my memory serves me correct, a jury attempting to make judgements on aviation technical issues to determine whether or not Glen Stewart was guilty or not - for me, a travesty of the justice "system".
Also if I recall correctly, someone in management on the ground gave the authorisation for the approach after the crew had made this request whilst in the hold. Something like crew not in recency for CAT 2/3??