Abstract
This article provides an exploration of the relationships between a procedural account of epistemic democracy, illegitimate laws and judicial review. I first explain how there can be illegitimate laws within a procedural account of democracy. I argue that even if democratic legitimacy is conceived procedurally, it does not imply that democracy could legitimately undermine itself or adopt grossly unjust laws. I then turn to the legitimacy of judicial review with regard to these illegitimate laws. I maintain that courts do not have a moral privilege on the overthrow of illegitimate laws; in this respect the refusal of royal assent has the same status. I also explain how the rule of the clear mistake fails to restrict the action of courts to only illegitimate laws. Finally, I argue for the positive epistemic inputs of weak judicial review