There was a former US Supreme Court Justice, Sandra Day O'Connor, who drew on an analogy to describe the importance of the independence of the judiciary. She talked about the importance of having an "impartial referee at a basketball game", which is an easy concept to grasp: it keeps the game controlled, it ensures an objective eye in controversial decision-making, and allows the fans to feel the outcome is fair. So the analogy is, of course, to the limbs of our democracy. Courts and judges often perform that referee role. Often, it's Government and Parliament who set the rules, but sometimes Government is one of those players; it's at those times, in particular, when independence is really critically quite important.