But if it is certain the hypothetical individual knew by the time the efits were drawn up that he had been all but recognised it would look strange if he was then to forbid the PIs any course of action they thought necessary. Anyway if the hypothetical individual was going to suppress anything produced or any information received which did not agree with their agenda then it wouldn't really matter what the PIs did.
Of course the hypothetical individual would have to choose their next PIs more wisely and perhaps only give them access to the parts of the files they needed to.
Of course it would be a whole lot simpler and a lot less strange to just not hire any PIs at all, or to tell everyone you had, but then actually never do. Who would be any the wiser? It makes little or no sense to hire professionals to gather information about your own crimes, for them to uncover evidence that you did it, then expect them to sit out their days knowing you have suppressed it and not to take that information to the police, or worse still the papers where they could stand to make a small fortune - what price for rock solid evidence of your guilt? It's an absurdly foolish risk you're suggesting, no doubt about it!