Abstract
The lively debate over the constitutional foundations of judicial review has been marred by a formalism which obscures its point and value.ed from genuine issues of substance, the rival positions offer inadequate accounts of the legitimacy of judicial review; constitutional theory must regain its connection with questions of political principle and moral value. Although the critics of ultra vires have rightly emphasized the foundational role of the common law, they have misconceived its nature and implications. On the one hand, they have invited the charge of judicial supremacism by marginalizing the role of legislative intent; on the other, their affirmation of absolute parliamentary sovereignty (within the context of this debate) undermines the critique of ultra vires. In substance, therefore, the rival camps occupy essentially the same ground, equally trapped by a formalism that entrenches a stark confrontation between parliamentary sovereignty and the rule of law. A conception of shared sovereignty, or interdependent sovereignties, provides a better foundation for judicial review