Not advocating OPs approach, but I"m pretty sure you could find them guilty of at least one act of treason. "For unknown reasons, Prime Minister Alec Douglas-H

Not advocating OPs approach, but I"m pretty sure you could find them guilty of at least one act of treason. "For unknown reasons, Prime Minister Alec Douglas-Home was not advised of Anthony Blunt's spying, although the Queen and Home Secretary Henry Brooke had been fully informed. In November 1979, then PM Margaret Thatcher formally advised Parliament of Blunt's treachery and the immunity deal that had been arranged" https://en.wikipedia.org/wiki/Anthony_Blunt https://en.wikipedia.org/wiki/Anthony_Blunt