Judicial review is the process through which courts examine whether legislation, decisions, or actions of public authorities comply with law. It includes constitutional review, which tests measures against a constitution, and administrative review, which examines the legality of public decision-making. Its scope, procedures, and consequences vary between legal systems: courts may refuse to apply an unconstitutional statute, set aside an unlawful administrative decision, or declare a legal incompatibility without invalidating the legislation. (constitution.congress.gov)
Legal foundations and scope
Judicial review connects the work of the judiciary with the rule of law: public authorities must exercise their powers within legally established limits. It also operates within arrangements for separation of powers, defining when courts may examine acts of government and the legislature. Review concerns legal authority and enforceable obligations, rather than a general judicial power to supervise policy choices. (judiciary.uk)
In constitutional law, review may address whether legislation exceeds constitutional powers or conflicts with protected rights. In administrative law, it may concern whether an authority exceeded statutory powers, failed to follow required procedures, or exercised discretion unlawfully. These categories overlap: an administrative measure can violate both its enabling statute and constitutional requirements. The United States Administrative Procedure Act expressly identifies constitutional violations, excess of statutory authority, procedural defects, and arbitrary or capricious action as grounds for reviewing agency action. (constitution.congress.gov)
Judicial review is not necessarily equivalent to an appeal. An appeal may authorize reconsideration of factual findings or the substantive merits of a decision. Administrative judicial review generally examines lawfulness without substituting the court’s preferred outcome for that of the authorized decision-maker. Nevertheless, legality can involve substantive standards, not merely procedural compliance. (judiciary.uk)
Constitutional review in the United States
The principal landmark in American constitutional review is Marbury v. Madison (1803). William Marbury sought a court order requiring delivery of his commission as a justice of the peace. The Supreme Court concluded that the statutory provision purporting to authorize its original jurisdiction in the case conflicted with the Constitution. It therefore declined to issue the requested order. The decision established the Supreme Court’s authority to hold an act of Congress unconstitutional. (constitution.congress.gov)
The reasoning treated the Constitution as superior law: when a statute and the Constitution conflict in a case properly before a court, the court must give effect to the Constitution. Judicial review thus arose through constitutional interpretation rather than an express constitutional clause using that term. Importantly, Marbury exercised review by rejecting a purported enlargement of the Court’s own jurisdiction, not by granting the claimant the relief he requested. (constitution.congress.gov)
Comparative institutional arrangements
Germany illustrates a system centered on a specialized constitutional court. Its Federal Constitutional Court hears abstract review applications from specified governmental bodies or a qualifying parliamentary minority. Abstract review does not depend on an individual lawsuit. In concrete review, an ordinary court refers a relevant statute that it considers unconstitutional to the constitutional court rather than itself declaring the statute invalid. (bundesverfassungsgericht.de)
Germany also provides constitutional complaints, through which individuals may allege that German public authority violated their fundamental rights. Abstract review, judicial referral, and individual complaints are distinct procedural routes, with different applicants and admissibility requirements. (bundesverfassungsgericht.de)
In the United Kingdom, parliamentary sovereignty shapes the limits of review. Courts can invalidate unlawful subordinate legislation, including regulations exceeding powers conferred by an Act of Parliament. Under the Human Rights Act 1998, designated courts may issue a declaration that legislation is incompatible with protected human rights. Such a declaration does not itself invalidate the provision or prevent its continuing operation. This differs from constitutional review that renders a statute unenforceable. (erskinemay.parliament.uk)
Grounds and access to review
The grounds of administrative review depend on the jurisdiction. In England and Wales, established grounds include illegality, irrationality, and procedural unfairness. They can encompass misunderstanding statutory powers, acting for an improper purpose, failing to consider legally relevant matters, or denying a fair hearing. Review remains a legal assessment, not an unrestricted reconsideration of policy. (judiciary.uk)
Access also depends on standing, jurisdiction, and procedural requirements. United States federal standing generally requires a concrete and particularized injury, traceability to the challenged conduct, and the possibility of redress through a favorable judgment. Ripeness concerns whether a dispute is ready for adjudication; mootness concerns whether a live controversy remains. The political question doctrine excludes certain questions from judicial determination even where other admissibility requirements are satisfied. (law.cornell.edu)
In England and Wales, claimants normally need sufficient interest, must satisfy applicable time limits, and must obtain permission to proceed. The availability of a suitable alternative remedy can affect whether review is appropriate. These requirements distinguish access to judicial review from success on the underlying legal challenge. (judiciary.uk)
Remedies and legal effects
A successful challenge does not invariably produce a particular substantive outcome. Remedies can include an order quashing a decision, prohibiting unlawful action, requiring performance of a public duty, or declaring the parties’ legal position. An injunction may provide interim protection while proceedings continue. Damages require an applicable legal basis and do not follow automatically from establishing unlawfulness. (judiciary.uk)
After a decision is quashed, the authority may reconsider the matter and sometimes reach the same result through a lawful process. Constitutional findings have different effects depending on the governing legal system; a declaration of incompatibility, for example, leaves the legislation’s validity unchanged. Courts may also apply constitutional avoidance, resolving a case on a nonconstitutional ground where possible rather than deciding an unnecessary constitutional question. (judiciary.uk)