Judicial review: how courts check the state
Where a constitution ranks above ordinary law, someone must decide whether the government has stayed beneath it. In much of the world that someone is a court. Judicial review, in its constitutional sense, is the power of judges to test legislation and executive action against the constitution and to refuse effect to what conflicts with it. The term also names a distinct but related practice: the review of administrative decisions for legality, reasonableness, and fair procedure.
The constitutional version rests on a deceptively modest syllogism. The constitution is law; it is higher law; judges decide cases according to law. When two legal norms conflict — a statute and the constitution — the court must apply the higher one and treat the lower as, to that extent, no law at all. From this simple logic follows a formidable power: a court may set aside the work of an elected legislature.
Systems organize the power differently. Some concentrate review in a single constitutional court that all others must consult; others diffuse it, letting any judge, in any case, decline to apply an unconstitutional statute. Some permit abstract review at the request of politicians before a law takes effect; others insist on a concrete dispute between real parties.
Key Points
- Constitutional judicial review lets courts invalidate legislation and executive acts that conflict with the constitution.
- The doctrine follows from constitutional supremacy: judges must apply the higher law when laws collide.
- Review may be concentrated in a special court or diffused through the ordinary judiciary.
- Courts use doctrines of standing, ripeness, and deference to avoid unnecessary constitutional rulings.
- Administrative review, the sibling doctrine, polices officials for legality, fair procedure, and reasonableness.
- The "counter-majoritarian difficulty" is the standing debate about unelected judges overruling elected lawmakers.
How review is exercised
Because the power is grave, courts have built fences around it. Standing rules require a challenger to have a genuine stake; doctrines of ripeness and finality insist the dispute be real rather than hypothetical; presumptions of constitutionality place the burden on the challenger. Where a case can be resolved on non-constitutional grounds, courts traditionally take that narrower path, and where the constitution's text is open-textured, many courts accord the legislature a margin of judgment — the deference appropriate to those who answer to voters.
The effects of invalidation vary. In diffuse systems, a judgment binds the parties and governs through precedent; in concentrated systems, the constitutional court may annul the statute outright, erasing it for everyone. Either way, the decision settles not only the case but, practically, the meaning of the constitution until the court revisits it or the constitution is amended.
Reviewing the administration
The sibling practice — judicial review of administrative action — asks narrower questions of officials and agencies: Did the decision-maker have legal power to act? Was the procedure fair, with notice and an impartial hearing? Was the decision within the range of reasonable outcomes on the evidence? Here courts do not substitute their own view of good policy; they police the boundaries of lawful administration, leaving the merits to the officials to whom the law entrusted them.
The democratic debate
Judicial review has never escaped the charge that it is undemocratic — that unelected judges should not frustrate elected majorities. Defenders reply that the constitution itself is the people's most considered act, and that rights would be parchment promises if every majority could waive them at will. The practice spread worldwide after the mid-twentieth century, precisely when societies emerging from tyranny concluded that majorities, too, require restraint.
The mature position treats the debate as permanent and productive: courts supply legality and rights protection, legislatures supply democratic energy, and the friction between them is not a defect of the design but the design itself. This overview is educational and not legal advice.
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