Drug Conspiracy Sentencing: Appellate Restraint and Individualised Mental-Health Mitigation

1. Introduction

This judgment concerns four appeals against sentences for conspiracies to supply crack cocaine and heroin. It illustrates the substantial weight an appellate court gives to a trial judge’s assessment of participants’ relative responsibility, while confirming that such restraint does not prevent intervention where an individual offender’s mental health and vulnerability make the resulting sentence manifestly excessive.

Three appeals failed. The fourth succeeded because the appellant’s schizophrenia, susceptibility to exploitation, limited participation and withdrawal from the conspiracy justified a greater reduction than the sentencing judge had allowed.

The decision principally applies established sentencing law rather than creating a new framework. Its significance lies in the distinction between unsuccessful attempts to recalibrate roles and starting points on appeal, and a successful challenge to the adequacy of the allowance for exceptional personal circumstances.

2. Background and Issues

The drug operation

The conspiracies operated between February 2017 and March 2018, although each appellant participated for a different period. A dedicated telephone number was used to send bulk advertising messages to drug users in Stafford. Customers placed orders by text, and the person controlling the line directed street dealers to deliver drugs and collect payment.

The operation continued despite repeated police intervention. Compromised telephone lines were replaced, and customers were notified of replacement numbers. Searches recovered drugs, cash, telephones, SIM cards and equipment associated with preparing and packaging drugs. Expert evidence estimated that the conspiracies would have benefited the participants by approximately £94,500, using assumptions about the value of transactions associated with bulk messages.

The principal organiser, who was not an appellant, used a wheelchair and depended substantially on assistance from others. That dependence mattered to the court’s assessment of the practical contribution made by the appellants.

The four appellants

For clarity, the appellants can be distinguished by their functions:

• The drug-line appellant: a young participant who operated a replacement line from London, sending bulk messages to Stafford customers, and also travelled to Stafford.
• The management appellant: another young participant who performed an operational or management function, including directing a street dealer.
• The younger street-dealer appellant: a participant involved for a particularly short period, whom the sentencing judge expressly placed in a lesser role.
• The driver appellant: an older participant who initially drove the organiser and made deliveries, but withdrew early. His schizophrenia and vulnerability became central to the successful appeal.

The sentencing exercise

On 4 June 2024, HHJ Gosling sentenced the appellants at Stafford Crown Court for two counts of conspiracy to supply Class A drugs, contrary to section 1(1) of the Criminal Law Act 1977. The drug-line and management appellants each received six years’ imprisonment; the younger street-dealer appellant received three years and six months; and the driver appellant received six years.

No transcript of the sentencing remarks was available. The Court of Appeal nevertheless had a written sentencing note and an agreed account of the sentencing hearing, enabling it to examine the judge’s reasoning.

The central questions were:

• Whether the starting points were excessive when measured against the substantive drug-supply guideline.
• Whether shorter participation or different operational functions required lower sentences.
• Whether the judge adequately addressed youth and personal mitigation.
• Whether the younger street-dealer appellant should have received a non-custodial sentence.
• Whether the driver appellant’s psychiatric condition and vulnerability required a greater reduction.

3. Summary of the Decision

The court found no error of principle or manifest excess in the three younger appellants’ sentences. In the driver appellant’s case, however, the overall sentence insufficiently reflected his particular circumstances, especially his diagnosis of schizophrenia.

4. Precedents Cited and Their Influence

Khan [2013] EWCA Crim 800, [2014] 1Cr.App.R. (S) 10

Khan supplies the essential balance between individual participation and responsibility for supporting a wider conspiracy.

At paragraph 34, Treacy LJ explained that an offender may have participated only during part of a conspiracy, in particular transactions, or in an otherwise identifiable smaller part of the enterprise. The sentencing judge should reflect that limitation, potentially by adjusting the category used to assess the offence.

Paragraph 35 provides the counterweight: participation in a conspiracy is itself aggravating because each participant knowingly gives assistance and encouragement to the others. Greater awareness of the enterprise’s scale increases culpability.

The present court applied both propositions. It did not regard duration as irrelevant, but rejected the suggestion that a shorter period of involvement necessarily required a lower category or a proportionately reduced sentence. The nature and importance of the assistance remained central.

R v Williams [2019] EWCA Crim 279

This was the principal authority on appellate restraint. Leggatt LJ explained that a judge sentencing numerous defendants in a drug conspiracy will often have acquired detailed knowledge through prolonged case management, evidence, trials and disputed-fact hearings. That judge is particularly well placed to assess relative responsibility and achieve fair relationships between sentences.

The Court of Appeal ordinarily lacks those advantages. Intervention therefore requires more than a plausible alternative assessment of role or mitigation. The relevant grounds include an obviously mistaken factual basis, an error of principle, or an assessment of weight that no reasonable judge could have reached.

This reasoning directly informed the rejection of arguments that the drug-line and management appellants should have been distinguished from one another. Their different activities and participation periods did not establish that the trial judge’s assessment of equivalent culpability was legally unsustainable.

Importantly, R v Williams does not make sentencing decisions immune from review. The successful psychiatric-mitigation appeal demonstrates the continuing availability of intervention where the resulting sentence is manifestly excessive.

R v Wilson [2024] EWCA Crim 124

In R v Wilson, Warby LJ explained that the statutory guideline for substantive drug offences is an appropriate reference point when sentencing a conspiracy, but does not expressly govern conspiracy offences and must not be applied slavishly.

A substantive supply offence and participation in a continuing agreement involve different assessments of criminality. A conspirator supports the overall enterprise; consequently, the amount personally handled is less significant than it might be when sentencing an isolated substantive offence.

This defeated arguments that an eleven-year starting point was necessarily impermissible because particular quantities or guideline categories suggested a lower figure. The guideline remained relevant, but did not conclusively determine the sentence for the conspiratorial conduct.

Hughes

The judgment also referred to Hughes, describing it as a decision in which Carr LJ approved R v Williams. No neutral citation or separate substantive analysis was provided. Its significance here was confirmatory: it reinforced the established approach to appellate review rather than supplying an independent rule.

5. Analysis of the Court’s Reasoning

A. The guideline informs conspiracy sentencing without controlling it mechanically

The sentencing judge used the substantive supply guideline to structure an initial assessment of harm and culpability. He regarded the operation as falling within Category 2 rather than Category 1 and assessed each participant’s role within the enterprise.

That approach did not require every conspiracy sentence to match exactly the starting point for an equivalent substantive offence. The agreement, continuing operation and support provided to other participants formed part of the criminality being sentenced.

Equally, the judgment does not establish a fixed “conspiracy uplift”. It endorses an evaluative assessment of the particular enterprise, not a prescribed numerical addition whenever conspiracy is charged.

B. Shorter involvement matters, but does not determine the outcome

The drug-line appellant relied on participation lasting just over three months; the management appellant relied on involvement lasting approximately five months. The court considered both periods substantial.

More importantly, duration could not be separated from function. Operating the communications infrastructure or directing another dealer could make an important contribution despite participation for less than the full indictment period.

The decision therefore distinguishes between recognising limited involvement and treating sentence length as a calculation based on time served within the conspiracy. The former is required; the latter is not.

C. Assistance to the organiser had practical significance

The court emphasised that the organiser’s physical disability restricted his ability to undertake the practical tasks involved in the operation. Assistance from other participants enabled him to engage fully in the enterprise.

This was a contextual application of the principle that conspirators support one another. It should not be read as creating a freestanding aggravating factor whenever an organiser is disabled. The relevant consideration was the actual importance of the assistance provided.

D. Comparisons require like-for-like analysis

The drug-line appellant challenged an eleven-year starting point that was only three years below the organiser’s fourteen-year starting point. The court rejected the argument that this necessarily showed insufficient differentiation.

The organiser’s eventual ten-year sentence reflected substantial personal mitigation, including the exceptional difficulties imprisonment would cause because of his condition. His final sentence could not simply be treated as a direct measure of relative culpability.

The broader lesson is that sentencing comparisons must distinguish offence seriousness from offender-specific adjustments. Equal or relatively close final terms do not, without more, establish unfairness.

E. Youth requires meaningful consideration, not a rigid formula

Paragraph 6.46 of the Sentencing Council Guideline for Sentencing Children and Young People indicates that, for offenders aged 15–17, a sentence broadly between half and two-thirds of the adult sentence may be appropriate. The guideline expressly describes this as a rough guide that must not be applied mechanistically.

The court was satisfied that the sentencing judge had considered the guideline when addressing the three appellants who had offended as youths. His use of “arithmetically” rather than the guideline’s “mechanistically” did not demonstrate a substantive misunderstanding.

For the drug-line and management appellants, the reduction from eleven years to six years left a sentence of approximately 55% of the adult starting point. The court also rejected the contention that personal mitigation had been ignored merely because it was not assigned a separate numerical allowance.

F. Sentencing reasons need not itemise every mitigating circumstance

The judge had expressly considered the pre-sentence reports, supporting letters and individual circumstances. Against that background, the Court of Appeal held that he did not need to assign a separate credit to every mitigating feature or present a detailed mathematical account of each adjustment.

This is not permission to overlook mitigation. It distinguishes adequate consideration from exhaustive itemisation: the reasons must demonstrate a proper sentencing exercise, but need not resemble an accounting schedule.

G. A pre-sentence report does not determine the disposal

The younger street-dealer appellant relied on a report discussing rehabilitation requirements or unpaid work. The court held that such an assessment did not bind the judge and that custody was inevitable for this offending, notwithstanding the appellant’s limited participation.

A clarification is important: although the appeal grounds complained about an attribution of a significant role, the sentencing account expressly placed this appellant in a lesser role. The judgment should not be understood as approving a significant-role classification for him.

The rejection of a community disposal was fact-specific. It does not establish that every young participant in a drug conspiracy must receive immediate imprisonment.

H. Psychiatric mitigation justified intervention in the driver’s case

The successful appeal rested on a combination of circumstances:

• A diagnosis of schizophrenia.
• An assessment that the appellant was highly vulnerable to exploitation.
• Inability to manage his own financial affairs without family assistance.
• Withdrawal at an early stage.
• Failure to rejoin the conspiracy despite threats from the organiser.

The sentencing judge had reduced an eight-year starting point to six years. The Court of Appeal held that the resulting term remained manifestly excessive and substituted four years and six months.

The court did not need to reclassify the appellant’s role to reach that result. Its intervention concerned the adequacy of the allowance for his individual circumstances, particularly his psychiatric diagnosis.

The decision supplies no standard reduction for schizophrenia. Its force lies in the need to assess the condition alongside evidence of exploitation, dependency and actual participation.

6. Impact and Practical Significance

For sentencing courts

Judges should retain the structure offered by the substantive drug guideline while addressing the distinct criminality of conspiracy. Reasons should explain the offender’s contribution, relevant limitations on involvement, and significant personal circumstances without requiring a separate numerical adjustment for every factor.

Psychiatric evidence requires substantive engagement. Acknowledging mental illness is not necessarily sufficient if the eventual sentence fails adequately to reflect its significance in the individual case.

For sentence appeals

Appeals based mainly on alternative readings of role, participation periods or co-defendant comparisons face substantial obstacles where the sentencing judge heard the trial. Identifying a concrete factual or principled error is more persuasive than inviting a fresh balancing exercise.

The successful appeal nevertheless shows that appellate restraint has limits. A sentencing judge’s superior knowledge of the case does not prevent correction of a manifestly excessive overall result.

Limits of the decision

The judgment neither reduces the relevance of individual participation to insignificance nor authorises automatic attribution of the whole conspiracy’s seriousness to every participant. The balancing principles in Khan remain essential. Nor does the decision create automatic psychiatric discounts or a universal rule requiring custody for young conspirators.

7. Complex Concepts Simplified

Conspiracy

An agreement to pursue criminal conduct. Sentencing considers the offender’s contribution to the shared enterprise, not merely the drugs personally handled.

Starting point

An initial sentence reflecting offence seriousness, before adjustments for matters such as youth and personal mitigation.

Harm and culpability

Harm concerns the seriousness and scale of the offending; culpability concerns the offender’s responsibility, including their role and understanding.

Manifestly excessive

A sentence sufficiently excessive to justify appellate correction—not simply a sentence higher than another judge might have imposed.

Parity

A fair relationship between co-defendants’ sentences, allowing for differences in responsibility and personal circumstances.

Non-mechanistic sentencing

Applying guidelines through reasoned judgment rather than treating categories or suggested reductions as an inflexible formula.

8. Conclusion

The judgment reinforces two complementary principles: substantial respect for a trial judge’s assessment of a drug conspiracy, and continuing scrutiny of whether each offender’s final sentence properly reflects individual circumstances.

Three appeals failed because differences in duration, role and guideline comparisons did not establish an appealable error. The driver appellant succeeded because schizophrenia, vulnerability and early withdrawal made six years manifestly excessive. The resulting reduction to four years and six months demonstrates that appellate restraint remains compatible with meaningful, individualised justice.