Extended Sentences May Properly Exceed 30+ Years Where Serial Online Child Sexual Abuse Escalates to Attempted Murder

1. Introduction

Dismore, R. v ([2025] EWCA Crim 1775, 9 December 2025) concerns an appeal against sentence by Ellis Dismore following convictions for 26 offences committed between 2015 and 2023. The offending involved sustained sexual exploitation and coercion of nine girls aged 13–15, conducted largely through social media using false identities, and culminating in a street attack in which the offender stabbed one victim (MG) multiple times, constituting attempted murder.

The appeal challenged whether an extended sentence of 43 years (38 years’ custody + 5 years’ extended licence) imposed under section 279 of the Sentencing Act 2020 was manifestly excessive, given the attempted murder guideline range and the offender’s age and lack of previous convictions.

The Court also noted statutory reporting restrictions: the Sexual Offences (Amendment) Act 1992 applied, requiring victim anonymity.

2. Summary of the Judgment

The Court of Appeal (Criminal Division) dismissed the appeal. It held that:

  • The sentencing judge was entitled to treat the attempted murder as the lead offence and to make all other sentences concurrent.
  • Although the attempted murder was correctly categorised as category 2A under the Attempted Murder guideline (starting point 30 years; range 25–35), the overall criminality—serial sexual exploitation over years, multiple victims, stalking and threats, and the escalation to near-fatal violence—justified going significantly beyond the guideline category range.
  • Applying totality and recognising the case’s “extreme” gravity, a 43-year extended sentence was “well within the range”; indeed, the Court considered it a clear case where a life sentence could properly have been imposed.
  • The offender’s lack of previous convictions carried little weight because the offending spanned much of his life and escalated with age.

The Court also observed a technical point about the maximum for stalking counts partly predating 3 April 2017 (maximum then 5 years), but confirmed it made no practical difference to the sentence imposed.

3. Analysis

3.1 Precedents Cited

R v AYO [2022] EWCA 1271

The Court relied on R v AYO [2022] EWCA 1271 as a reference point for the sentencing “regime” in very grave sexual cases, including the broad proposition that it is “comparatively rare” for the total custodial term of an extended sentence for multiple sexual offences after trial to exceed about 30 years.

The Court’s treatment of R v AYO [2022] EWCA 1271 is important in two ways:

  • Benchmark not cap: the “about 30 years” observation is not a ceiling; it is a description of typical upper-end practice.
  • Exceptional seriousness gateway: the Court affirmed that sentences above that level are reserved for “particularly serious offending” and held this case satisfied that test because the sexual coercion culminated in attempted murder.

In effect, Dismore illustrates when the “comparatively rare” category contemplated in R v AYO [2022] EWCA 1271 is engaged: where sexual offending is prolonged, multi-victim, coercive and predatory, and is paired with—especially escalates into—life-threatening violence.

3.2 Legal Reasoning

The Court’s reasoning proceeds through orthodox sentencing structure but applies it robustly to the facts:

  1. Lead offence selection: Attempted murder was treated as the lead offence; concurrency for the sexual and related offences was adopted as a means of controlling overall proportionality while still reflecting full criminality through uplift on the lead count.
  2. Guideline anchoring: The sentencing judge anchored the attempted murder in category 2A (starting point 30 years; range 25–35) based on:
    • Very high culpability (attempted murder of a child; sexually motivated).
    • Harm category 2 (serious, but not the most severe, due to survival and rescue).
  3. Uplift beyond category range: The judge then treated the guideline range as insufficient because:
    • The attempted murder was not an isolated outburst; it was the climax of 8 years of predatory, manipulative sexual offending.
    • There were nine victims, repeated threats (including rape and murder), and stalking supported by gathering personal information.
    • The attempted murder involved pre-arming (knife purchased that day), approach from behind, and repeated stabbing—conduct consistent with intent to kill.
    The Court of Appeal endorsed that approach, explicitly stating that the judge was “perfectly entitled” to go “significantly beyond” the category range.
  4. Dangerousness and the extended sentence: The Court accepted the application of “dangerousness provisions” and the resultant extended sentence structure (custodial term plus extended licence), and noted there was no challenge to the 5-year extension.
  5. Mitigation given limited weight: The Court treated the absence of previous convictions as having “no weight” in context, because the offender had been offending for a “significant proportion of his life,” including escalation into adulthood. Age did not significantly mitigate where maturity coincided with increased entrenchment and seriousness.

The key doctrinal move is the Court’s insistence that totality can justify substantial uplift on a lead count to reflect a long course of multi-victim exploitation, even when the guideline category range for that lead offence has already been carefully identified.

3.3 Impact

Dismore is likely to be cited for the proposition that:

  • In “extreme” cases, an extended sentence may properly exceed 30 years and even go well beyond the guideline range for the lead offence where necessary to capture the overall criminality.
  • The “about 30 years” observation in R v AYO [2022] EWCA 1271 is not a presumption against longer terms; it is a statement of typical rarity, overcome by exceptional aggravation—particularly where sexual offending escalates into attempted homicide.
  • Where a defendant has offended continuously over many years, “no previous convictions” may be of minimal mitigating value.
  • Courts may expressly consider whether a case is one where life imprisonment is appropriate even when an extended sentence is imposed; that observation strengthens the appellate court’s endorsement of very long determinate/extended terms in the most serious cases.

Practically, the judgment supports sentencing approaches that: (i) use the attempted murder guideline as a base; (ii) apply significant uplift for sustained, multi-victim sexual exploitation; and (iii) rely on dangerousness/extended licence to manage post-release risk. It may encourage prosecutors and judges to frame the escalation narrative (online grooming/coercion → stalking → real-world violence) as an aggravating continuum rather than separate compartments.

4. Complex Concepts Simplified

  • Extended sentence (s.279 Sentencing Act 2020): A sentence used for certain violent/sexual offenders found “dangerous,” consisting of a custodial term plus an extended licence period. The offender serves the custodial element (subject to release rules) and then remains on licence for the extension, allowing closer supervision and recall.
  • Dangerousness provisions: A legal finding that the offender poses a significant risk of serious harm to the public from further specified offences, justifying enhanced sentencing structures (such as extended sentences).
  • Category 2A attempted murder (guidelines): A guideline classification for attempted murder reflecting levels of culpability and harm; it provides a starting point and range, but courts may move beyond the range when justified by the facts.
  • Totality principle: A rule ensuring that when sentencing for multiple offences, the final sentence is proportionate to the overall offending. It can operate to prevent an excessive accumulation—but also to justify an uplift on the lead offence so that concurrency still reflects the full criminality.
  • Ancillary orders: Additional court orders beyond imprisonment (here including restraining orders, a sexual harm prevention order, and notification requirements) aimed at protecting victims and managing future risk.
  • Sexual Offences (Amendment) Act 1992: Provides lifetime anonymity for complainants in sexual offence cases, restricting publication of identifying details.

5. Conclusion

Dismore, R. v confirms that where prolonged, predatory sexual offending against multiple children culminates in attempted murder, the sentencing court may—applying totality and dangerousness—impose an extended sentence that substantially exceeds both (i) the typical extended-sentence levels discussed in R v AYO [2022] EWCA 1271 and (ii) the guideline category range for attempted murder. The Court’s explicit view that this was “a clear case” for life imprisonment underscores the decision’s broader message: in escalation cases combining serial sexual exploitation with near-fatal violence, appellate courts will be slow to interfere with exceptionally long sentences designed to reflect gravity and protect the public.