The legal side of this is as simple as the blame side: Mahon's findings on blame could not be appealed. Some of the appeal judges could not help making a comment or two, but those comment were just that: Comments. The Privy Council judges also couldn't help blowing a bit of smoke up Mahon's arsehole after hammering him for his conduct of the inquiry. That's all that was: Some kind words for a stupid old twit.