JP
Further to your excellent summary of the facts at #5301, have YOU given any thought to what offences were committed (at your points 1. and 2.) by CA and ACAS; and anyone else who was party to the deliberate decision to ignore Boscombe warnings and advice, and misrepresent the facts in a fabricated CAR/RTS? Given his support of the ROs, one assumes this includes, as you say, CAS. His only defence would be to say his subordinates had withheld the facts from him.
You know my own feelings. Something along the lines of "false representation" (of the facts), failure of "Duty of Care" and "gross negligence" seems appropriate.