Self-Defence Directions in “Knife-Fight” Cases and When Omission of an Express Manslaughter Mens Rea Direction Will Not Render a Conviction Unsafe

1) Introduction

In Hedges, R. v [2026] EWCA Crim 607, the Court of Appeal (Criminal Division) dismissed an appellant’s challenge to a conviction for manslaughter arising from a fatal stabbing during a short public confrontation in which both the appellant (a child at the time of sentence) and the deceased were armed with large knives.

The appellant pleaded guilty to possession of a bladed article contrary to s.139(1) Criminal Justice Act 1988. He was tried for murder but was acquitted of murder and convicted of the alternative offence of manslaughter. He appealed on (i) evidential rulings (as renewed grounds for which leave was refused), (ii) alleged misdirection on self-defence, (iii) alleged failure to direct on the mental element for manslaughter, and (iv) sentence.

The judgment is particularly instructive on: (a) how self-defence may properly be left to a jury where the evidence supports an “agreed/voluntary fight” narrative, (b) when an appellate court will treat the absence of an explicit “intent to cause some harm” direction for manslaughter as immaterial to safety, and (c) the limited basis upon which the Court of Appeal will interfere with fact-sensitive evidential rulings, especially under s.100 Criminal Justice Act 2003 and s.78 PACE.

2) Summary of the Judgment

  • Renewed conviction grounds (evidence): Refused as unarguable. The trial judge’s rulings on (i) exclusion of proposed non-defendant bad character evidence about the deceased’s family and (ii) admission of prison telephone calls were upheld.
  • Conviction appeal (self-defence): No misdirection. The directions, read as a whole, left the relevant issues as matters of fact for the jury; the “consensual knife fight” wording in the route to verdict was “perhaps unfortunate” but not misleading in context.
  • Conviction appeal (manslaughter mens rea): No unsafe conviction. Even if an additional explicit direction had been given that manslaughter required an intent to cause at least some harm, no reasonable jury could have failed to be sure of that intent on the evidence (knife, location, and force).
  • Sentence: Renewed application refused; sentence not manifestly excessive and the judge did not treat the appellant as a “mini-adult”. A technical correction was required: as the appellant was 17, detention should have been expressed under s.250 Sentencing Act 2020 rather than as “detention in a young offender institution” under s.262.

3) Analysis

3.1 Precedents Cited and Their Role

(a) Appellate restraint on evidential evaluative judgments: R v Al-Shumari and the “plainly wrong / Wednesbury” threshold

On the attempted renewed ground regarding non-defendant bad character, the court applied the approach summarised in R v Al-Shumari [2025] EWCA Crim 1317, which emphasises that once the correct legal principles are applied, the Court of Appeal will not interfere unless the admissibility decision is “plainly wrong” or “Wednesbury unreasonable”. The judgment in Al-Shumari itself drew on the established line of authority in: R v Hanson, R v Renda, R v Lawson, and Braithwaite.

The significance here is practical: where the trial judge has correctly focused on relevance and the statutory threshold (“substantial probative value”), the appellate court will treat the trial judge’s “feel for the case” as decisive unless the decision is outside the rational range.

(b) Prison telephone calls and “consent” to monitoring: R v Mahmood

The admission of prison calls was upheld by reference to R v Mahmood [2013] EWCA Crim 2356, which the judge treated as supporting the proposition that, where an inmate uses the system with adequate notice, they may be taken to have consented to monitoring/recording and the product can be admissible.

The appellate court endorsed the trial judge’s conclusion that the relevant custodial recording system complied with the legislative framework (on evidence from an HMPPS adviser) and that the calls were therefore admissible.

(c) Youth sentencing and the “mini-adult” error: R v ZA

In rejecting the renewed sentence challenge, the court relied on R v ZA [2023] EWCA Crim 596; [2023] 2 Cr App R (S) 45 (notably at [52] as cited), reaffirming that children must not be sentenced as “mini-adults”. The court held that the judge did precisely what ZA requires: starting from a youth-focused, individualised assessment and only then relating the outcome to adult guideline structure as a comparative anchor.

3.2 Legal Reasoning

(A) Non-defendant bad character under s.100 Criminal Justice Act 2003: relevance and “substantial probative value”

The defence sought to adduce non-defendant bad character evidence of the deceased (and more controversially, of the deceased’s family) under s.100(1)(b) Criminal Justice Act 2003, to support the appellant’s asserted state of mind and the reasonableness of his actions in claimed self-defence.

The judge admitted what was directly tied to the deceased and to what the appellant claimed he knew/believed at the time about the deceased (including the appellant’s prepared statement insofar as it related to the deceased), but excluded generalised assertions about the deceased’s family and their purported reputation for violence.

The Court of Appeal agreed: the “focus had to be on what was in the appellant’s mind” at the relevant time and, critically, on material capable of having substantial probative force on issues the jury had to decide. Family reputation evidence, untethered to the deceased’s own conduct in the incident and not shown to have substantial probative value, was characterised as irrelevant. Applying R v Al-Shumari, the ruling was not merely within range; it was “plainly right”.

(B) Admission of prison calls: compliance, disclosure, and s.78 exclusion

The defence sought exclusion of two recorded calls on three bases: alleged non-compliance with the statutory framework/absence of warning, alleged disclosure failures, and s.78 PACE (the transcript refers to “PACE 1978”)—arguing low probative value and high prejudice (custody status; language; limited relevance to self-defence).

The judge found (i) compliance and consent (via R v Mahmood), (ii) no unfairness from lateness of service, and (iii) that probative value outweighed prejudice because the calls were “capable” of being treated as inconsistent with the self-defence account. The Court of Appeal described the ruling as “impeccable”, rejecting the suggestion that there had been cherry-picking or that other calls had to be obtained/disclosed absent an application (no s.8 Criminal Procedure and Investigations Act 1996 application was made).

The reasoning reflects an orthodox approach: s.78 is a fairness-based discretion, not a general moral filter. The mere fact that a jury will learn an accused was on remand is not automatically determinative where the evidence materially bears on a live issue and the trial judge has weighed probity and prejudice.

(C) Self-defence directions in a “knife-fight” narrative: aggressor, voluntariness, and context

The central conviction ground argued misdirection: the judge directed that if the jury were sure the appellant “was behaving aggressively and entered voluntarily into a knife fight” then “no question of self-defence arises”, and the route to verdict asked whether the jury were sure the appellant acted as an aggressor in a “consensual knife fight”.

The Court of Appeal’s key analytical move was contextual reading. It held that:

  • The judge had already explained the two-part self-defence structure (need for force; reasonableness of force) and that the prosecution must negative self-defence.
  • The challenged passage was directed to the factual scenario open on the evidence: two people choosing to fight each other with knives. In that scenario, it is open to the jury to conclude the prosecution has proved the appellant was an aggressor/voluntary participant and did not genuinely believe he needed to use defensive force as a non-aggressor.
  • The “however” limb expressly preserved the alternative: if it “was or may have been” that the appellant genuinely believed he was about to be attacked/was under attack, the jury had to go on to assess reasonableness.

The “consensual knife fight” label was noted as “perhaps unfortunate” because it introduced a new term, but it did not mislead when read alongside the full written directions. The court also rejected a temporal criticism that the question confined self-defence to the moment of stabbing; in a 19-second incident, the directions necessarily encompassed the whole sequence.

Practical lesson: the Court of Appeal will tolerate less-than-ideal phraseology in a route to verdict if the overall directions correctly communicate (i) the prosecution burden and (ii) that the jury must decide the factual predicates (aggressor status, genuine belief, proportionality) on all the evidence.

(D) Manslaughter mens rea: when omission of an explicit “intent to cause some harm” direction does not matter

The appellant argued that, having been acquitted of murder, the jury should have been directed that manslaughter required proof of a mental element—specifically an intent to cause at least some harm (less than really serious harm). The complaint focused on the route-to-verdict structure: if not sure of intent to kill/GBH, the jury were told to return manslaughter without an additional question.

The Court of Appeal rejected the ground on a no-difference/safety analysis:

  • Given the knife, the force, and the targeting of the chest, no reasonable jury could fail to be sure the appellant at least intended to cause some harm.
  • The appellant’s “instinctive blow” account, on his own case, was deployed to support self-defence. Once the jury rejected self-defence, describing the act as “instinctive” did not negate an intention to cause at least some harm.

This is a notably robust application of appellate common sense: even where a direction could have been more explicit, the court will not overturn a conviction if the missing element is inescapable on the evidence and the overall verdict is safe.

(E) Sentencing: youth-first individualisation, dangerousness, and statutory labelling

The renewed sentence application advanced three themes: an allegedly offence-focused approach, an alleged error in rejecting self-defence on the sentencing basis, and mis-weighting of mitigation/aggravation.

The Court of Appeal endorsed the single judge’s refusal. It emphasised that the sentencing judge:

  • Began from youth sentencing principles and the Youth Offending Team material, including immaturity and life experiences.
  • Was entitled to sentence on the basis that the appellant was not acting in self-defence (the jury verdict and the judge’s assessment of CCTV and circumstances supported that basis).
  • Properly located culpability within Category B (starting point 12 years for an adult) and then applied a substantial reduction to 8 years due to youth factors—demonstrating she did not sentence as a “mini-adult” (R v ZA).

Finally, the court corrected a technical error: because the appellant was 17, the sentence should not have been expressed under s.262 Sentencing Act 2020 but instead as detention under s.250. The custodial term (8 years less remand credit) was unchanged; only the statutory basis/label was corrected.

3.3 Impact

  • Self-defence in mutual confrontation cases: The decision supports trial judges framing self-defence by reference to whether the defendant was a voluntary participant/aggressor in a fight, provided the directions (read as a whole) keep the issues as factual questions and preserve the two-stage self-defence analysis.
  • Routes to verdict: “Imperfect” labels (like “consensual knife fight”) are unlikely to found a successful appeal where the written/oral directions as a whole are accurate, coherent, and jury-focused.
  • Manslaughter mens rea directions: While best practice is to ensure the jury understands the mental element for any alternative offence, this case demonstrates that omission will not necessarily render a conviction unsafe where the mental element is an unavoidable inference from the act proved.
  • Evidence law: The judgment reinforces the appellate court’s deference to trial judges on evaluative admissibility decisions under s.100 CJA 2003 and s.78 PACE, especially where relevance/probative value and fairness have been explicitly balanced.
  • Youth sentencing administration: The technical correction illustrates the importance of using the correct statutory power when recording youth custodial sentences, even where the term itself is upheld.

4) Complex Concepts Simplified

  • Self-defence (criminal law): The jury asks (1) did the defendant genuinely believe force was needed (or might they have believed it)? and (2) was the force used reasonable in the circumstances as the defendant believed them to be? If the prosecution makes the jury sure the defendant was not acting defensively (e.g., was the aggressor/voluntary fighter with no genuine defensive belief), self-defence fails.
  • “Substantial probative value” (s.100 CJA 2003): Not all negative information about someone is admissible. It must meaningfully help decide a real issue in the case (e.g., the reasonableness of fear), not merely paint a picture or invite prejudice.
  • Wednesbury unreasonable / “plainly wrong”: An appeal court will not redo a trial judge’s balancing exercise unless it was outside the range of rational decisions.
  • s.78 PACE exclusion: Even relevant evidence can be excluded if admitting it would have such an adverse effect on the fairness of proceedings that the court ought not to admit it. The court weighs probative value against unfair prejudice/unfairness.
  • Unlawful act manslaughter mens rea (in simplified terms): The prosecution must prove an intentional unlawful act that is dangerous and causes death. The “intent” usually concerns intending the act and (at least) intending some harm. The Court of Appeal held that, on these facts, intending at least some harm was inevitable.
  • Technical sentencing corrections: Sometimes the length of sentence is lawful, but it is recorded under the wrong statutory provision. The appellate court can “quash and substitute” to correct the legal label without changing the term.

5) Conclusion

Hedges, R. v [2026] EWCA Crim 607 confirms a pragmatic, context-driven appellate approach to jury directions and trial management in violent confrontation cases. The court upheld: (i) restrained appellate review of evidential rulings under s.100 CJA 2003 and s.78 PACE; (ii) self-defence directions that, in substance, leave the “aggressor/voluntary fight” narrative as a factual route for the jury rather than a legal bar; and (iii) the safety of a manslaughter conviction despite the absence of an explicit additional mens rea question where intent to cause at least some harm was inevitable on the evidence. On sentence, the decision reiterates youth-first individualisation (R v ZA) while also highlighting the need for accurate statutory recording (s.250 rather than s.262 Sentencing Act 2020).