Biologist and anti-religion crusader Richard Dawkins says: "How often does a criminal walk free on a 'technicality'? Perhaps the arresting officer fluffed his lines when delivering the official caution. Decisions that will gravely affect a person’s life can turn on the powerlessness of a judge to exercise discretion and reach the conclusion that every single person in the court, including the criminal and his defence lawyer, knows is just. It isn’t as simple as this, of course. Discretion can be abused, and rulebooks are important safeguards against that. But the balance has shifted too far in the direction of an obsessive reverence for rules."