Non-Prosecution Assurances Must Be Unequivocal and Supported by Contemporaneous Evidence

Decision: [2026] EWCA Crim 1226

Court: England and Wales Court of Appeal (Criminal Division)

Date: 4 September 2026

Introduction

This decision concerns when an alleged prosecution promise not to continue a criminal charge can make a subsequent prosecution an abuse of process. The applicant, a former senior police officer, sought permission to appeal his conviction for burglary with intent to inflict grievous bodily harm upon his former partner.

He argued that prosecution counsel had created a legitimate expectation that the burglary charge would be dropped if he pleaded guilty to two other offences. The Court of Appeal held that the proposed appeal was unarguable because the contemporaneous records showed that the burglary count remained live when those pleas were entered.

The decision reinforces two linked requirements: an alleged non-prosecution assurance must be unequivocal, and the defendant must have acted upon it to their detriment. Whether those requirements are met is fact-sensitive, but later assertions cannot ordinarily overcome clear contemporaneous documents and transcripts.

Background

The applicant was convicted of five offences arising from serious domestic abuse against his former partner. He pleaded guilty to assault by beating, assault occasioning actual bodily harm, intentional suffocation and affray.

He denied burglary with intent to inflict grievous bodily harm. The prosecution alleged that, while subject to bail conditions prohibiting contact with the complainant or attendance at a property where she was present, he forced entry into their former shared home intending to harm her. CCTV recorded him attempting entry with a key and then breaking a window with a piece of wood. Police found him inside with a large knife, serious self-inflicted wrist injuries, rope, blades and suicide notes.

The defence maintained that the applicant did not regard himself as a trespasser and had entered solely to take his own life. Following a retrial, the jury convicted him of the burglary offence. He received an overall sentence of six years’ imprisonment.

Trial counsel advised that there were no grounds of appeal. After obtaining a second opinion, the applicant sought an extension of 302 days and permission to appeal the burglary conviction.

Issues Before the Court

  1. Whether the prosecution had unequivocally represented that the burglary count would be dropped if the applicant pleaded guilty to two other offences.
  2. Whether the applicant entered those pleas in reliance upon that representation and thereby suffered detriment.
  3. Whether material held by the Bar Standards Board concerning the condition of the original prosecution counsel was relevant and should be disclosed.
  4. Whether the substantial delay in seeking permission to appeal should be extended.

Summary of the Judgment

The Court of Appeal refused both the extension of time and the application for third-party disclosure. It concluded that the proposed appeal was unarguable.

The records created at or around the time of the guilty pleas contained no promise that the burglary count would be withdrawn. On the contrary:

  • Trial counsel’s attendance note did not record any such assurance.
  • The applicant’s signed endorsement and basis of plea referred only to the desired withdrawal of the stalking count.
  • The hearing transcript expressly recorded that the prosecution considered a trial of the burglary count necessary, which defence counsel acknowledged.
  • A later basis of plea likewise contained no suggestion that the burglary count had to be abandoned.
  • No abuse-of-process application or application to vacate the guilty pleas was made in the Crown Court.

Documents created in August 2024 merely asserted that a legitimate expectation had previously arisen. They could not displace the contrary contemporaneous evidence.

Analysis

Precedent Cited

R v Abu Hamza [2006] EWCA Crim 2918; [2007] QB 659

The Court relied on R v Abu Hamza for the proposition that prosecuting a person may amount to an abuse of process where an assurance has been given that prosecution will not be brought or continued. Ordinarily, however, abuse will not be established unless:

  1. those responsible for conducting the prosecution made an unequivocal representation that the prosecution would not proceed; and
  2. the defendant acted on that representation to their detriment.

The Court accepted that these requirements are not an exhaustive code applicable mechanically to every case. The inquiry remains fact-sensitive. Nevertheless, they provided the appropriate framework because the applicant specifically alleged that guilty pleas had been induced by an assurance concerning another count.

Timing of the Alleged Assurance

The alleged expectation had to exist before the applicant pleaded guilty. An assurance arising afterwards could not have induced the pleas or constituted detrimental reliance.

The applicant entered the relevant pleas shortly after midday on 9 April 2024. The Court therefore examined the documents and transcript immediately preceding that point rather than relying primarily on accounts created several months later.

Primacy of Contemporaneous Evidence

The strongest evidence was the applicant’s signed endorsement, the written basis of plea and the transcript of the hearing. None stated that withdrawal of the burglary count was part of the plea arrangement.

More decisively, the judge stated during the hearing that the prosecution remained of the view that the burglary count required a trial, and defence counsel agreed. The applicant then pleaded guilty to the other offences. It was therefore clear to all concerned, including the applicant, that the burglary allegation remained active.

The Court regarded the later attendance notes and correspondence as assertions rather than evidence capable of establishing the alleged promise. Their contents were inconsistent with the documents generated when the pleas were actually entered.

Subsequent Conduct

The conduct of the defence after the pleas also undermined the claim. Correspondence merely invited the CPS to review whether it would continue the burglary prosecution. It did not assert that continuation was an abuse of process or seek to set aside the earlier guilty pleas.

Nor was an abuse application made during either of the subsequent trials. Had an unequivocal promise truly induced the pleas, the Court considered that such steps would naturally have been expected.

Third-Party Disclosure

The disclosure application concerned an allegation that the original prosecution counsel had been intoxicated when the supposed assurance was given. Trial counsel’s contemporaneous note instead recorded a serious medical emergency requiring hospital treatment.

The Court held that the requested material was immaterial. Even assuming, solely for argument, that prosecution counsel had been intoxicated, that fact could not overcome the transcript and signed documents demonstrating that no operative assurance existed when the applicant pleaded guilty.

The ruling illustrates that third-party disclosure will not be ordered where the fact sought to be proved would make no difference to the proposed ground of appeal.

Extension of Time

The Court was not satisfied that the requested 302-day extension had been justified. It did not need to examine the delay in greater detail because the proposed appeal was unarguable. Granting additional time would therefore serve no purpose.

Complex Concepts Simplified

Abuse of process
A court may stop a prosecution where continuing it would undermine the integrity of the justice system or make a fair trial impossible. A clear and relied-upon promise not to prosecute may, in an appropriate case, produce that result.
Legitimate expectation
An expectation created by a sufficiently clear representation from a public authority. In this context, the applicant needed to show a clear prosecution assurance that the burglary count would not continue.
Detrimental reliance
The defendant must have changed their position for the worse because of the assurance—for example, by entering guilty pleas that would not otherwise have been entered.
Contemporaneous evidence
Documents or records made at the time of the relevant events. Such evidence will generally carry greater weight than recollections or assertions produced months later.
McCook procedure
Where an appeal involves criticism of former legal representatives, the allegations and supporting material are sent to them so that they may respond before the appellate court considers the complaint.

Impact

The judgment does not create an inflexible new test beyond R v Abu Hamza. Its significance lies in its rigorous evidential application of that authority.

Future defendants alleging that a prosecution promise induced a plea will need to confront the complete contemporaneous record. Signed bases of plea, counsel’s endorsements and hearing transcripts are likely to be decisive, particularly where they expressly show that the disputed charge remained active.

The decision also discourages speculative disclosure applications. If the applicant’s case would remain legally unarguable even were the requested information assumed to be favourable, disclosure is not material and need not be ordered.

Conclusion

A prosecution may abuse the court’s process by breaking an unequivocal non-prosecution assurance on which a defendant has detrimentally relied. But the existence, timing and effect of that assurance must be demonstrated by the evidence.

Here, the contemporaneous materials established that the burglary count remained live when the guilty pleas were entered. Later assertions could not reverse that record, and information about prosecution counsel’s condition could not alter the analysis. The conviction appeal was therefore unarguable, the extension of time was refused, and third-party disclosure was denied.