This guide is maintained as a current resource for November 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Discovered new evidence or believe a mistake was made? Learn the procedures for reopening a case, challenging a judgment, and the strict requirements for legal reconsideration.
A legal decision may seem final, but under certain circumstances it can be reopened or reconsidered in the courts or tribunals of England and Wales. This article explains when and how that can happen, why the law protects final decisions, and what practical steps might be available if new evidence or injustice emerges after a judgment. The focus is on clear explanation for members of the public, litigants, students and solicitors alike.
Finality of Decisions and Why Reopening Is Limited
The principle of finality in litigation means that once a court or tribunal gives a lawful decision, the matter is normally closed. This protects certainty in the legal system and prevents endless attempts to relitigate settled cases. In legal terminology, once a judgment has been delivered it is often described as “functus officio”, meaning the court's authority over the matter has ended. Absent statutory permission or exceptional circumstances, a case cannot simply be reopened because one side disagrees with the result.
Despite this, the legal system provides limited, carefully controlled mechanisms to revisit decisions where justice demands it, such as where errors, new evidence, or procedural mistakes arise.
Reopening Cases in Criminal Contexts
Magistrates' Courts – Cases Where Defendant Was Unaware
If a defendant did not know their case was proceeding or did not have the opportunity to put forward their defence, the court may agree to reopen the matter. For example, if a person genuinely did not know about a hearing and was not able to enter a plea, they can make a statutory declaration to the magistrates' court explaining the circumstances. The court may then reopen the case.
- Typically, this application must be made within 21 days of discovering that the proceedings took place.
- If satisfied, the court can allow the case to be reheard.
- A guilty verdict after reopening can result in a sentence or fine being increased, whereas a not guilty finding ends the charges.
Reopening Decisions in Civil and Family Proceedings
Reconsideration Before Appeal Deadlines Expire
Where a court has issued a judgment but the legal deadline for appeal has not yet expired, different routes may be available:
- Some courts allow parties to ask for reconsideration of judgment if there was a significant error or injustice in the original decision.
- In tribunals like Employment Tribunals, parties can apply to have a judgment reconsidered within 14 days of the written judgment being sent out. The tribunal may confirm, vary or revoke the decision if it is in the interests of justice.
Such reconsiderations do not affect the normal time limits for appeals, and are distinct from appeals themselves.
Reopening Final Appeals
Once an appeal reaches a final determination, reopening it is rare and tightly controlled. For civil cases and many other appeal contexts, the Civil Procedure Rules (CPR) Part 52.30 sets out the test for reopening a final appeal decision:
A final appeal determination may be reopened by the High Court or Court of Appeal only if:
- It is necessary to avoid real injustice.
- The circumstances are exceptional and justify reopening.
- There is no effective alternative remedy.
This power applies even to decisions refusing permission to appeal, but permission to make a reopening application is itself required.
What Counts as “Exceptional Circumstances”?
These are very narrow and must go beyond simply disagreeing with a decision. Examples include:
- Clear procedural errors such as a court not having access to key documents it directed parties to file.
- Situations where the integrity of the prior proceedings is critically undermined, meaning that the outcome could have been different if the error had not occurred.
The courts emphasise that reopening appeals is rare and reserved for serious injustice, not ordinary legal mistakes.
Reopening Orders or Judgments Not Yet Sealed
A judge has discretion to re-open or correct an order or judgment before it has been formally sealed. This is a separate process from reopening final appeals and applies to orders handed down but not yet finalised in civil procedures. The Supreme Court has confirmed that judges should weigh whether reopening serves justice but also give proper weight to the principle of finality.
Special Route: Criminal Reinstatement and Prosecutorial Review
In criminal law, the Prosecution of Offences Act 1985 gives the Crown Prosecution Service (CPS) the power to reinstitute proceedings that were previously discontinued, subject to evidential and public interest tests. Newly discovered evidence that materially strengthens a case may justify fresh proceedings.
The CPS also operates a Victims' Right to Review (VRR) scheme, which allows decisions not to prosecute or to discontinue to be reconsidered. In rare cases, this can lead to prosecution being reinstated if the original decision is found to have been wrong.
However, reinstating proceedings after a formal acquittal is generally prohibited unless double jeopardy exceptions apply under statutory provisions that allow retrials for the most serious offences and new compelling evidence, a separate and specialised legal framework.
Reopening in Family and Other Specialist Areas
Family law cases may be reopened in certain circumstances, such as when new evidence emerges that could materially affect child arrangements, care orders or other family decisions. Courts follow specific procedural rules and case law tests to decide whether to revisit earlier findings of fact, often requiring that the new information would make a significant difference to the outcome.
Practical Considerations Before Seeking to Reopen a Case
- Check applicable deadlines: Many reopening routes carry specific time limits, such as the 21‑day period for statutory declarations in magistrates' courts or 14‑day reconsideration windows in tribunals.
- Assess the strength of evidence: Courts are unlikely to reopen decisions merely because a party disagrees with the outcome. Fresh, compelling evidence or clear procedural error is often required, especially for reopening final appeals.
- Seek legal advice: Given the technical requirements and high thresholds, obtaining advice from qualified solicitors or barristers can clarify options and procedural requirements.
Common Questions About Reopening Cases
Can any case be reopened?
No. Only in specific statutory or procedural scenarios where justice demands it; ordinary dissatisfaction with an outcome is not enough.
What if I missed the appeal deadline?
Missing an appeal deadline generally bars appeals, but some limited procedural mechanisms (such as reconsideration or reopening applications) may still be available in certain contexts, subject to strict criteria.
Can new evidence alone reopen a final decision?
New evidence may form part of a basis for reopening, but alone it is generally not sufficient without showing that it changes the fairness or result of the original proceedings, especially in appeals.
Key Takeaways
A case in England and Wales can be reopened, but only under specific legal pathways designed to balance the finality of litigation with the need to avoid injustice. These include statutory declarations in criminal magistrates' courts, reconsideration of judgments under procedural rules, reopening final appeals in exceptional circumstances, reinstatement of discontinued prosecutions in criminal law, and specialised procedures in family and tribunal contexts. Understanding these frameworks and acting promptly is essential for anyone considering revisiting a legal decision.
