Plan B: A Theory of Judicial Review

There is no general theory of the grounds of judicial review (e.g., the rule against bias, the doctrine of legitimate expectations, unreasonableness). Here I try to fill the gap. My theory draws on ideas from the philosophy of law and the philosophy of action, but it’s a simple theory. Officials make decisions for the community. Their decisions are subject to requirements of instrumental rationality. Ideally, officials would figure out for themselves how to live up to these requirements. Because officials aren’t perfect, the law also has “Plan B”, which is for judges to ensure that officials do what rationality requires of them. The grounds of judicial review are simply the grounds on which it’s rational for officials to reconsider, retain, suspend, or apply their decisions. The “Plan B theory”, as I call it, doesn’t account for every detail of judicial review. Even so, the theory is powerful, parsimonious, fruitful, and sharply at odds with almost everything else written about judicial review.