This guide is maintained as a current resource for July 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.
Learn how appeals against extended sentences are handled in England and Wales, including the Court of Appeal process, grounds for appeal, time limits, outcomes and practical considerations for defendants and legal practitioners.
An extended sentence is a type of custodial sentence in England and Wales that combines a standard prison term with a longer period on licence in the community when the court considers an offender poses a significant risk of serious harm. These sentences are commonly imposed for violent, sexual or terrorism‑related offences where public protection is a paramount concern.
Like other custodial outcomes, extended sentences can be challenged through the criminal appeals system. However, because extended sentences often involve complex assessments of risk and dangerousness, the process for appealing them has specific features. This article explains how appeals against extended sentences are handled, what rights appellants have, applicable time limits, potential outcomes, and practical points for defendants, families, and practitioners.
What Is an Extended Sentence?
Under the Sentencing Code, an extended sentence applies where:
- An offender aged 18 or over is convicted of a specified violent, sexual or terrorism‑related offence;
- The offence and the offender's history indicate a significant risk of serious harm to the public;
- A determinate custodial term of at least four years is appropriate; and
- Life imprisonment is not available or not justified.
An extended sentence consists of a custodial term (the “term of imprisonment”) and an extension period on licence, during which release may be subject to licence conditions enforceable in the community.
Grounds for Appealing an Extended Sentence
An appeal against an extended sentence may be made on similar grounds to other appeals against sentence:
1. Error in Law
An appellant can argue that the sentencing judge misapplied or misunderstood sentencing law, for example by failing to apply the correct legal tests when assessing dangerousness or the extension period.
2. Manifestly Excessive Sentence
It may be contended that the overall sentence (custodial term and extension period combined) is manifestly excessive, disproportionate to the offence and offender's circumstances.
3. Procedural Irregularity
If there were significant procedural failings during sentencing - for example, inadequate consideration of mitigation - an appeal may be based on procedural unfairness.
These grounds are assessed under the Criminal Appeal Act 1968 and the Criminal Procedure Rules governing appeals against sentence.
The Appeal Process
Step 1: Permission to Appeal
To challenge an extended sentence, a defendant must first apply for permission to appeal to the Court of Appeal (Criminal Division). This involves serving an NG Notice and Grounds of Appeal within 28 days of sentencing, identifying the specific points of law or fact being contested.
A judge may grant permission at this initial stage if there is an arguable case that the sentence is wrong in principle or manifestly excessive. If permission is refused, the appellant can renew the application before the full Court of Appeal.
Step 2: Hearing in the Court of Appeal
If permission to appeal is granted, the appeal proceeds to a full hearing before a panel of judges. At the appeal hearing, the appellant's representatives will present arguments aimed at demonstrating:
- That the original judge erred in law;
- That the sentence was disproportionate given the legal framework and sentencing guidelines; or
- That the extended licence period was unjustified or incorrectly calculated.
The prosecution (usually represented by the Crown Prosecution Service Appeals and Review Unit) will respond to these arguments.
The Court of Appeal has statutory authority to quash, reduce, or substitute the sentence under appeal if satisfied that the original term or licence extension was wrong in law or manifestly excessive.
Time Limits and Extensions
The standard time limit for appealing a sentence (including extended sentences) is 28 days from the date of sentencing.
If an appellant misses this deadline, they may still apply for an extension of time, but this is granted only in exceptional circumstances. The Court of Appeal will consider factors such as lateness, reasons for delay, and whether there is a substantive arguable case to be heard. Extensions are granted sparingly, reflecting the importance of finality in sentencing.
Potential Outcomes of an Appeal
1. Sentence Reduced
If the Court of Appeal finds the extended sentence manifestly excessive or incorrect in law, it may reduce the custodial term and/or adjust the extension period on licence to reflect appropriate sentencing principles.
2. Sentence Confirmed
The Court may dismiss the appeal, leaving the extended sentence and licence period unchanged if it considers the original judge applied the law correctly and reached a proportionate outcome.
3. Re‑sentencing
In some cases, the Court may quash the original sentence and order re‑sentencing. This may occur where significant legal or procedural errors are identified that undermine confidence in the original sentence. The re‑sentencing exercise must then be conducted under correct legal principles.
Related Appeals: Unduly Lenient Sentence Scheme
Separately from a defendant's own appeal, certain sentences may be challenged by third parties through the Unduly Lenient Sentence (ULS) scheme. Under the ULS scheme, the Attorney General's Office may ask the Court of Appeal to review a sentence it believes to be unduly lenient if the offence falls within the ULS criteria and referral is made within 28 days of sentencing.
This scheme allows victims, members of the public or officials to raise concerns about sentences that appear too low, including extended sentences where the custodial or extension period may not reflect the seriousness of the offence.
Practical Considerations
Legal Representation
Appeals against complex sentences such as extended sentences often raise technical legal issues. Appellants are strongly advised to seek specialist representation to prepare Grounds of Appeal and present persuasive legal arguments.
Impact on Release and Licence
An appeal against an extended sentence does not automatically change a prisoner's release date or licence conditions while the appeal is pending. Any interim relief (such as bail) must be specifically ordered by the appellate court.
Criminal Cases Review Commission
If all normal appeal routes are exhausted and there remain concerns about the safety of the conviction or fairness of the sentence, an application may be made to the Criminal Cases Review Commission (CCRC) to investigate and potentially refer the case back to the Court of Appeal on behalf of the appellant.
Common Questions
Can only the extended part of the sentence be appealed?
No. Appeals against extended sentences typically challenge the entire sentencing decision, including both the custodial period and the extension on licence. The appellant must explain why the overall sentence is wrong in law or disproportionate.
Are extended sentences often successful on appeal?
Success depends on whether the appellant can show a legal error or that the sentence is manifestly excessive. Extended sentences involve a judicial dangerousness assessment, making purely proportionality challenges more complex and fact‑sensitive.
Does appealing an extended sentence protect the appellant's current release date?
Not automatically. Unless the Court of Appeal orders bail or another interim arrangement, the original sentence continues to operate while the appeal is determined.
Key Takeaways
Appeals against extended sentences in England and Wales follow the standard criminal appeals framework to the Court of Appeal (Criminal Division). Key stages include:
- Applying for permission to appeal within 28 days of sentencing;
- A full hearing where legal and fairness arguments are presented;
- Possible outcomes including reduction, confirmation or re‑sentencing;
- Strict rules on time limits and potential extension only in exceptional circumstances;
- The Unduly Lenient Sentence scheme as a related but distinct pathway for third‑party challenges.
Understanding these procedures helps appellants and their advisers navigate the complex process of challenging extended sentences with clarity and confidence.
