Blackmail Guideline: “Substantial period” and “sophisticated planning” assessed per count, but totality may still justify a high overall term
Key takeaways
- For Sentencing Council blackmail culpability, “conduct repeated or prolonged over a substantial period of time” is assessed by reference to the individual offence, not by aggregating a multi-count series into one “substantial period”.
- Operational complexity (multiple phones/accounts) does not, without more, amount to “sophisticated planning” for Category A culpability.
- Even if each count should be placed in Category B2, a high overall term can still be upheld where ten offences amount to a sustained campaign and the totality assessment is proportionate.
- A slip in sentencing remarks on the guideline starting point will not require intervention if the judge in fact sentenced on the correct basis.
1. Introduction
This appeal concerned sentence for ten counts of blackmail contrary to section 21(1) of the Theft Act 1968. The appellant pleaded guilty in March 2024 and, after delay largely caused by the listing of a co-accused’s case, was sentenced in November 2025 to 7 years 4 months’ imprisonment on each count concurrent.
The offending involved threats—primarily via WhatsApp and calls—to expose complainants’ use of sexual services and threats of violence unless money was paid. A tenth count, committed while the appellant was on bail, involved similar threats against a tradesperson over an alleged debt. The Court of Appeal made an anonymity order under section 11 of the Contempt of Court Act 1981 protecting the ten complainants.
The appeal focused on whether the sentencing judge had misapplied the Sentencing Council Guideline on Blackmail (notably culpability categorisation and the starting point), and whether the resulting term was manifestly excessive, including in light of mitigation.
2. Summary of the judgment
The Court of Appeal:
- Accepted that the sentencing judge misspoke about the Category A2 starting point (saying 6 years rather than 4 years), but found this was merely a slip and the correct starting point had in fact been applied.
- Accepted the appellant’s central submission that culpability for each count should have been Category B (specifically B2), not Category A2, because:
- the individual offences were generally carried out over a day or two and were not “repeated or prolonged over a substantial period of time” within a single count; and
- the use of multiple phones and accounts did not amount to “sophisticated planning”.
- Dismissed the appeal because, notwithstanding the categorisation correction, the overall sentence was not manifestly excessive given the scale (ten victims), the campaign-like character of the conduct, the aggravating features (including commission on bail for count 10), and a proper totality evaluation.
3. Analysis
3.1 Precedents cited (authorities and materials shaping the decision)
The judgment did not cite earlier case-law by name. Instead, it turned on the structured application of:
- Sentencing Council Guideline on Blackmail (“the Guideline”): particularly the dividing lines between culpability Category A and Category B, and the A2/B2 starting points and ranges.
- Sentencing Council Guideline on Totality: emphasising that, where multiple offences are sentenced together, the court’s ultimate task is a just and proportionate overall sentence reflecting the total criminality, with offence-level categories serving as the “starting point” rather than the end of the analysis.
- Theft Act 1968, s.21(1): the statutory foundation for the offence of blackmail.
- Contempt of Court Act 1981, s.11: the mechanism used to restrict publication likely to identify complainants.
In sentencing appeals, these guidelines operate as the principal “precedent-like” framework: appellate review focuses on whether the sentencing judge correctly applied them, and whether the final outcome is outside the proper ambit of discretion.
3.2 Legal reasoning
(a) The “starting point” slip did not demonstrate substantive error
Although the sentencing remarks referred to an incorrect A2 starting point, counsel confirmed the issue was raised immediately and the judge explained it was a verbal slip. The Court of Appeal accepted that explanation and treated the error as non-determinative.
(b) Culpability Category A requires more than repetition across the indictment
The court’s most important analytical contribution concerns how to interpret the Category A factor:
“conduct repeated or prolonged over a substantial period of time”
The court accepted there was repetition when viewing all ten counts together. However, it held that the “substantial period of time” requirement must be satisfied at the level of the individual offence being categorised. Because most counts involved contact over only a day or a few days, that Category A feature did not apply to each count.
This is a practical clarification: multi-complainant series offending may demonstrate an overall pattern, but that pattern does not automatically convert each count into Category A culpability unless the guideline descriptor is met for that count.
(c) “Sophisticated planning” requires more than tactical concealment
The prosecution pointed to multiple phone numbers and bank accounts. The court treated this as “some complexity” but not “sophisticated planning”. It also noted what was not asserted: there was no finding that the escort activity itself was deliberately engineered as a “trap” to blackmail clients. On the facts, the planning threshold for Category A was not crossed.
(d) Why the overall term nevertheless stood: totality and campaign offending
Having re-categorised the counts as B2, the court still upheld the total sentence by:
- placing each count “comfortably above” the B2 starting point because repetition and planning—while not enough for Category A—still increased seriousness;
- identifying aggravation beyond that expressly relied upon below, including conduct intended to maximise distress/humiliation (e.g., very early-morning calls; sending a complainant a photograph of himself to demonstrate knowledge);
- treating count 10 as seriously aggravated because it was committed on bail for similar offending;
- characterising the ten counts as a “sustained campaign of blackmail” run “akin to a small business”, justifying a notional post-trial total of 11 years and a one-third reduction to 7 years 4 months.
Put shortly, the court separated two questions: (i) the correct guideline box for each count; and (ii) whether the totality outcome was nonetheless within the range of proportionate sentences for ten separate blackmails affecting ten victims.
3.3 Impact
- Guideline categorisation discipline: Sentencers should be cautious about using “series” features (spanning months across multiple complainants) to push each count into Category A unless the guideline descriptors are met within that count.
- Planning threshold: The judgment signals that “sophisticated planning” requires a qualitative step beyond using multiple devices/accounts; otherwise, routine concealment could be over-labelled as sophistication.
- Totality remains decisive in multi-count blackmail: Even where counts fall into B2, courts can properly impose substantial overall terms where the conduct is campaign-like, victim-multiplying, and includes on-bail offending and intimidation designed to amplify fear.
- Appeal strategy: A successful challenge to guideline categorisation will not necessarily reduce sentence unless it can be shown that the overall totality outcome is manifestly excessive or wrong in principle.
4. Complex concepts simplified
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Culpability vs harm (in guidelines):
“Culpability” measures blameworthiness (planning, coercion, duration, role), while “harm” measures impact and risk (distress, financial loss, wider consequences). The combination places the offence into a category (e.g., A2 or B2) with a starting point and range.
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“Starting point” and “range”:
The starting point is the normal sentence for a typical case in that category after trial. The range allows movement up/down for aggravating and mitigating features.
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Totality:
When sentencing multiple offences, the court does not simply add up all sentences. It must impose a total sentence that is proportionate to the overall criminality, often using concurrency/consecutivity and an overall “check”.
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“Manifestly excessive” (appeal test):
The Court of Appeal intervenes only if the sentence falls outside the reasonable range of sentences open to the judge, or if there was an error of principle affecting the outcome.
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Section 11 Contempt of Court Act 1981:
Allows the court to restrict publication of information likely to identify protected persons (here, complainants), enforceable against both mainstream and social media publication.
5. Conclusion
Williamson, R. v [2026] EWCA Crim 548 clarifies that, under the Blackmail guideline, Category A culpability factors such as repetition “over a substantial period” and “sophisticated planning” must be evidenced at the level of each individual count, not inferred simply from a multi-count pattern. However, the decision also underlines that in campaign blackmail involving numerous victims—especially where intimidation is calibrated to heighten fear and where offending continues on bail—totality can sustain a substantial overall sentence even if the per-count categorisation is lower. The appeal was therefore dismissed.