Judicial Review — Key Grounds & Cases
Frequently Asked Questions
What are the realistic prospects of a judicial review succeeding?
The first stage is the permission stage — the judge must be satisfied that the claim is "arguable" (has a real prospect of success). Around 30–40% of JR claims are refused permission on the papers; many of those are renewed orally and some succeed at that stage. Of claims that receive permission, around 30–40% succeed at the substantive hearing. However, the resolution rate before the substantive hearing is high — many JRs settle after permission is granted, when the public body agrees to reconsider. The most important predictor of success is the quality of the legal analysis at the outset: a solicitor who correctly identifies a strong ground of illegality (wrong legal test applied) achieves a much higher success rate than a generalised "unreasonableness" challenge. The Pre-action LBC alone achieves a resolution in a significant proportion of cases, without the need for court proceedings at all.
What is the judicial review time limit and can it be extended?
The standard time limit for judicial review is 3 months from the date of the decision (CPR Part 54.5). Special time limits apply: 6 weeks for planning decisions; 30 days for procurement challenges. The clock starts from the date of the decision, not from the date the claimant became aware of it. The court can extend time "where there is good reason to do so" (CPR 54.5(2)) — but extensions are not readily granted and the court requires a compelling explanation for the delay. A solicitor should be instructed as soon as possible after the decision. Even if time has passed, a solicitor can advise on whether the reasons for delay are sufficient to support an extension application.
Can a company or organisation bring a judicial review?
Yes — any person, company, or organisation with "sufficient interest" in the matter to which the application relates can bring a JR (Senior Courts Act 1981 s.31(3)). Sufficient interest (standing) is broadly interpreted. Companies regularly bring JR against: regulatory decisions affecting them; government policies affecting their industry; procurement decisions; and competition-related decisions. Non-governmental organisations (NGOs) bring JR as public interest challenges — where the unlawfulness affects a wider class of people. Campaign groups have successfully challenged planning decisions, immigration policies, and environmental decisions by JR. A solicitor advises on whether the claimant has standing and whether a public interest JR is appropriate.
What is the Pre-action Protocol for Judicial Review?
The Pre-action Protocol for Judicial Review requires the claimant to send a Letter Before Claim (LBC) to the defendant public body before filing the JR claim — giving the public body an opportunity to reconsider its decision. The LBC must: identify the decision challenged; set out the facts; identify the proposed grounds of challenge; specify the remedy sought; and give the public body 14 days to respond (3 days in urgent cases; 7 days in immigration cases). The public body's response must: acknowledge the LBC; confirm whether the decision is reconsidered; and if not, set out its grounds for maintaining the decision. Failure to comply with the Protocol (without good reason) can result in a costs penalty at the conclusion of the proceedings. A solicitor drafts the LBC in terms that put maximum pressure on the public body to reconsider — and that, if it does not, form the foundation of the strongest possible JR application.
Can I get interim relief — a temporary stop — while the judicial review is heard?
Yes — the Administrative Court can grant interim relief — typically an injunction preventing the public body from acting on its decision — while the JR proceeds. Interim relief is available on an urgent basis, sometimes within hours of the application. The test for interim relief is the American Cyanamid test: (1) there is a serious issue to be tried; (2) damages would not be an adequate remedy; and (3) the balance of convenience favours granting the injunction. The claimant must give an undertaking in damages (agreeing to compensate the defendant for any loss caused by the injunction if the JR fails). In HRA cases involving life, liberty, or serious physical integrity, the court will more readily grant interim relief. A solicitor advises on whether interim relief is available and applies urgently where the threat is immediate.