@prospector - We're educated and polite men here, sir - there's no need to shout.
At this point the best we can do is agree to disagree, because ultimately the whole mess is tied up in tales of missing evidence, break-ins, acrimony and the end of careers. If you choose to take that as your conclusion then that's none of my business just as the reasons behind mine are none of yours.
Vette saw Mahon after the whole thing had worked it's way through the grinder, and asked him what had happened and why he did not continue to press his case beyond the Privy Council's findings (which in fact only upheld the complaint of the conspiracy charge and nothing else, despite what you say - even if you say it in caps). Mahon's enigmatic reply was "Politics boy, deep politics".
Once you're into that mess then even the best reasoning can come to nothing.