Chawdhury, R. v — Abuse of Process Bars Retrial Where Acquittal Negates the Prosecution’s Factual Basis for a Hung Count

1) Introduction

This decision of the England and Wales Court of Appeal (Criminal Division) concerns a prosecution application for leave to appeal under section 58 of the Criminal Justice Act 2003 against a ruling of HHJ David Richards at Inner London Crown Court staying a proposed retrial as an abuse of process.

The respondent, Saaquib Chawdhury, was tried alongside Rennell Walker-Scarlett and Kairone Lee-Sang arising from a shooting incident at a Shell petrol station in Croydon. The indictment included:

• Count 1: conspiracy to cause grievous bodily harm with intent (Criminal Law Act 1977, s 1(1));
• Count 2: possessing a firearm with intent to endanger life (Firearms Act 1968, s 16);
• Count 3: possessing a prohibited firearm (Firearms Act 1968, s 5(1)(aba)).

The central issue was the relationship between count 1 and count 2 as the case was actually left to the jury. The jury acquitted Chawdhury on count 2, convicted him on count 3, and could not agree on count 1. The prosecution sought a retrial on count 1; the trial judge stayed it.

The appeal raised (i) jurisdictional questions under s 58 (timing and the “acquittal undertaking”), and (ii) whether the stay for abuse of process was correct given the significance of the acquittal on count 2.

2) Summary of the Judgment

The Court of Appeal held:

1. Jurisdiction existed. The prosecution’s email stating they were “minded” to appeal did not amount to informing the Crown Court of an intention to appeal; that occurred at the subsequent hearing when the acquittal undertaking was given. The appeal notice was therefore in time.
2. The stay was correct. On the way the case was put and directed, an acquittal on count 2 logically removed the factual foundation for convicting on count 1. A retrial on count 1 would improperly seek to re-litigate issues already resolved in Chawdhury’s favour.
3. The Court granted leave but dismissed the appeal. As a consequence of the unsuccessful prosecution appeal and the undertaking, Chawdhury was entitled to an acquittal on count 1.

3) Analysis

A. Precedents Cited

i) Connelly v DPP [1964] AC 1254

Connelly is a foundational authority on the relationship between the formal pleas of autrefois acquit/autrefois convict and the broader doctrine of abuse of process. Even where a second prosecution is not technically barred by autrefois, proceedings may still be stayed if they offend the underlying principle that the state should not oppressively re-litigate issues already determined.

In Chawdhury, the Court treated the proposed retrial as “not a strict autrefois acquit case” because counts 1 and 2 were distinct offences with different elements. However, the Court considered the situation sufficiently analogous to attract Connelly’s abuse-of-process principle: where, on the prosecution’s own presentation, the acquittal on one count necessarily negates the basis for another, a second attempt becomes an impermissible re-run.

ii) R v Beedie [1998] QB 356

Beedie applied Connelly in the context of successive proceedings arising out of the same factual incident, emphasising that the court may intervene to prevent unfairness where the prosecution’s approach amounts in substance to multiple bites at the same cherry.

The trial judge relied on Beedie to justify a stay where the prosecution, following an acquittal on count 2, wished to press on with a count 1 retrial that (on the facts and directions) could not coherently survive that acquittal. The Court of Appeal agreed: although the legal labels differed, the retrial would re-open what the acquittal on count 2 had already settled, given how count 2 was framed against Chawdhury (encouraging/assisting Walker-Scarlett to bring and use the gun with intent).

iii) R v BJF [2024] EWCA Crim 1670

R v BJF [2024] EWCA Crim 1670 was cited on the strictness of compliance with section 58(8) Criminal Justice Act 2003 (the “acquittal undertaking”) and the jurisdictional consequences of non-compliance. In BJF, counsel informed the court of an intention to appeal by email but failed to give the undertaking in that communication; the Court held the appeal was without jurisdiction.

Chawdhury follows BJF in principle but distinguishes it on the facts by interpreting the prosecution email as merely advance notice of what would happen at the forthcoming hearing (“minded to seek leave... will of course give the acquittal undertaking on Wednesday”), rather than the operative act of “informing” the Crown Court for s 58(4) purposes. Because the formal notification occurred in open court on the Wednesday and the undertaking was then given, the jurisdictional bar did not arise.

B. Legal Reasoning

i) The jurisdiction point: when is the Crown “informing” the court?

Two procedural objections were raised: (1) the appeal notice was allegedly late under Criminal Procedure Rules 38.3(2); and (2) the prosecution allegedly failed to give the acquittal undertaking “at or before” informing the Crown Court of the intention to appeal under s 58.

The Court resolved both by identifying the operative moment of notification. It treated the email as a courtesy indication of what would be done later, not the statutory “informing” required by s 58(4). This preserved the strictness of BJF (undertaking must accompany notification) while avoiding over-formalism that would treat any informal correspondence as the triggering event irrespective of its language.

ii) The substantive point: the acquittal on count 2 as the “floor” for count 1

The Court’s core reasoning is intensely case-specific and turns on how count 2 was left to the jury against Chawdhury. The directions/route to verdict for count 2 required the jury to be sure that Chawdhury:

• asked Walker-Scarlett to come to the scene with a firearm,
• encouraged/assisted him bringing a loaded handgun, and
• intended to encourage/assist endangering life by bringing the loaded handgun.

The Court concluded that if the jury was not sure of those matters (as reflected in the acquittal on count 2), there was no coherent evidential or logical foundation, on the prosecution case as advanced, for a conspiracy by Chawdhury to go further and agree that Walker-Scarlett would actually inflict grievous bodily harm with the firearm (count 1).

The Court effectively treated count 2 (as charged and directed) as the minimum factual platform for count 1 in Chawdhury’s case. It observed that the counts would have made more logical sense if approached in reverse order: establish count 2 first (encouragement/assistance + intent to endanger life), and only then ask whether the prosecution proved the additional step of a conspiratorial agreement to cause grievous bodily harm. On that framing, an acquittal on count 2 means the jury “do not get off first base” for count 1.

iii) The role of the jury note and the absence of clarifying directions

The jury asked whether count 1 and count 2 were “interlinked” and whether a verdict on one influenced the other. They were told that guilt on count 2 did not require guilt on count 1 and were referred back to the directions.

With hindsight, the Court held the judge would have needed to address the converse scenario for Chawdhury: if not guilty on count 2, then not guilty on count 1 on the facts and way the case was put. The Court acknowledged the realities of trial management (notes answered quickly) and did not attribute blame, but treated the jury’s difficulty as symptomatic of the indictment/directions not explaining how the counts functioned in relation to one another in this particular prosecution theory.

iv) Why abuse of process (not strict autrefois) nonetheless applied

The Court accepted that counts 1 and 2 are legally distinct and therefore the retrial was not automatically barred by autrefois. But applying the Connelly/Beedie principle, it held that the prosecution, having “lost” the essential factual contention via the count 2 acquittal, could not fairly seek to try again to obtain a conviction on count 1 where (given their own case theory and directions) the jury’s acquittal had already negated that theory.

C. Impact

• Charging and trial presentation: Where multiple counts are pleaded from the same incident, prosecutors must ensure the jury understands whether counts are cumulative, alternative, or sequentially dependent on particular factual findings; otherwise verdict combinations may generate post-verdict abuse of process arguments.
• Routes to verdict and judicial directions: This case illustrates that legally accurate element-by-element directions may still be insufficient if they do not address how the prosecution case theory makes one count factually foundational to another (especially when the jury expressly asks).
• Section 58 practice: The decision reinforces strict compliance with the acquittal undertaking regime, while clarifying that not every email foreshadowing an appeal constitutes “informing” the court for s 58(4); the language used matters.
• Fairness after mixed verdicts: The ruling strengthens the practical reach of abuse of process to prevent retrials that, though formally permissible after a hung count, would be unfair because an acquittal has already resolved the essential factual dispute against the prosecution as they ran the case.

4) Complex Concepts Simplified

Terminatory ruling (s 58 Criminal Justice Act 2003)

A Crown Court ruling that effectively ends the case (or a count) against a defendant. The prosecution has a limited right to appeal such rulings, but must follow strict procedural steps.

Acquittal undertaking (s 58(8))

A promise by the prosecution that if it appeals and loses, the defendant will be acquitted (rather than simply facing further proceedings). Because it affects finality, the courts require strict compliance as a condition of jurisdiction.

Hung jury / no verdict

The jury cannot reach the required majority verdict on a count. The prosecution may seek a retrial, but the court can stay it as an abuse of process in exceptional circumstances.

Abuse of process

A power to stop proceedings where continuing would compromise the integrity of the justice system—commonly because it would be unfair (e.g., oppressive re-litigation) or would bring justice into disrepute.

Autrefois acquit / autrefois convict

Formal pleas that bar a second prosecution for the same offence after acquittal/conviction. Even when those pleas do not technically apply (because the offences differ), abuse of process may still bar the case where the second prosecution undermines the principle of finality.

5) Conclusion

Chawdhury, R. v confirms that where, on the prosecution’s own presentation and the judge’s directions, an acquittal on one count necessarily removes the factual basis for guilt on a related hung count, a retrial on the hung count may properly be stayed as an abuse of process under the principles exemplified in Connelly v DPP [1964] AC 1254 and R v Beedie [1998] QB 356.

Procedurally, the case also illustrates careful, language-sensitive application of the strict regime governing prosecution appeals under s 58, distinguishing R v BJF [2024] EWCA Crim 1670 on whether an email constitutes the statutory act of “informing” the court of an intention to appeal.

The broader significance lies in reinforcing finality and fairness after mixed verdicts: a retrial is not a mechanism to re-run, under a different label, an essential allegation that the jury has already rejected.