The Gatekeeper’s Gavel: Judicial Review Is Won Before the Merits

Judicial review is usually discussed as a constitutional showdown: ministers make policy, judges review it, and the country argues about who has the final word. That framing captures the drama of a handful of cases. It misses the machinery that decides most of them. In England and Wales, a claim for judicial review does not begin with a substantive hearing. It begins with permission.

Under CPR Part 54, an applicant must seek permission to bring a claim. The court considers whether the claim is arguable, whether it has been brought promptly and within the three-month limit, whether the claimant has standing, and whether an alternative remedy should be pursued. These are not technicalities. They determine whether the executive is ever called to account in court, whether public bodies spend scarce resources defending weak claims, and whether the public gets a clear answer on the legality of policy.

The courtroom drama and the backstage filter

The permission stage is where judicial review is really shaped. A refusal ends the claim unless it is renewed orally. A grant narrows the issues. Early judicial assessment can encourage settlement, focus grounds and filter out claims that are political rather than legal. For centre-right constitutional reformers, this should be the focus. The alternative—periodic wars over ouster clauses or the scope of judicial review—is blunter, more destabilising and less likely to improve administration.

The permission stage is not a rubber stamp. It is a constitutional valve. It protects the courts from being overwhelmed by claims that belong in the political process, and it protects the political process from being second-guessed by judges on questions that are not legal. When that valve works well, judicial review retains its authority. When it appears arbitrary, both claimants and ministers lose confidence in it.

What the 2026 figures reveal

The 2026 judicial review statistics, read alongside HMCTS operational data, show a familiar pattern rather than a crisis. Applications remain substantial. Permission refusal rates remain high. Only a minority of claims reach a substantive hearing, and oral renewals overturn only a modest share of paper refusals. A relatively small number of departments and policy areas account for a large share of challenges. These are broad patterns, but they point to a system that is selective rather than out of control.

That selectivity is not an argument for complacency. It raises questions of consistency. Permission decisions can appear opaque to claimants and to the public. Reasons are often brief. The difference between a claim that is arguable and one that is merely disappointed can be fine. When the state is the defendant, the perception of a fair filter matters as much as the reality.

There is also a resource question. Every weak claim that survives permission consumes court time, Treasury Solicitor time and ministerial attention. Every strong claim that is wrongly filtered out undermines the rule of law. The aim should be neither maximal access nor minimal access, but predictable access.

The case for predictable filters

Centre-right constitutionalism should begin from a simple proposition: judicial review is a check on legality, not a general appeal against policy. The permission stage is the natural place to enforce that distinction. A predictable filter protects parliamentary sovereignty by keeping judges focused on legal error. It protects good administration by disposing of weak claims early. And it protects access to justice by reserving substantive hearings for cases that genuinely need them.

The wrong response is to treat every permission refusal as evidence of judicial activism, or every failed claim as proof that the courts are obstructing the executive. The right response is to make the filter more legible. That means publishing better data, giving clearer reasons and setting realistic expectations about what judicial review can and cannot deliver.

A reform agenda for the permission stage

Several reforms would improve the system without weakening scrutiny. First, the Ministry of Justice and HMCTS should publish anonymised permission-stage data by department, ground of challenge and outcome, including the number of paper refusals renewed orally and the reasons given. Transparency would expose inconsistency and deter weak claims.

Second, the Civil Procedure Rules should make the test at permission explicitly one of arguability and legal substance, not a mini-trial of the merits. Judges should be able to dispose of claims quickly where the real complaint is about policy choice. Third, the promptness requirement should be applied consistently, with clear guidance on when delay is excusable. Fourth, alternative remedy and standing rules should be codified in plain language, so claimants know where they stand.

Fifth, oral renewal should remain, but with a tight timetable and a costs consequence for unmeritorious renewals. That preserves the safety valve without encouraging speculative litigation. None of these reforms requires Parliament to strip the courts of jurisdiction. They require better procedure, better data and a clearer constitutional division of labour.

Conclusion: scrutiny without theatre

The permission stage is the real constitutional battleground because it decides whether the merits are ever reached. A centre-right agenda should not seek to win that battle by abolishing it. It should make the gatekeeping principled, predictable and transparent. That is a more conservative reform than the headline clashes over judicial power—and a more effective one.