Immediate custody for repeated perverting-the-course-of-justice offending causing wrongful detention: high appellate restraint on suspension decisions

1. Introduction

This appeal concerned sentence and, more narrowly, whether immediate custody should have been suspended. The appellant pleaded guilty to two counts of doing an act tending and intended to pervert the course of justice (common law), and one count of encouraging or assisting an offence believing it would be committed, contrary to section 45 of the Serious Crime Act 2007.

The offending consisted of repeated false reports and fabricated social media messages that led to police investigation and the arrest/detention of innocent people. The appellant’s case on appeal emphasised youth/immaturity at the time, relationship dynamics with a co-defendant, delay in charging, limited antecedents, and rehabilitation prospects.

Key issue

Whether the sentencing judge erred in refusing to suspend the 15-month custodial sentence (the custody threshold and overall length being conceded).

2. Summary of the Judgment

The Court of Appeal dismissed the appeal. It held:

• The judge applied the relevant suspended sentence guideline and made no error of principle.
• Where the complaint is only about “weight” given to relevant factors, the Court of Appeal will not interfere unless the conclusion was one no reasonable judge could reach.
• The seriousness of repeated perverting-the-course-of-justice-type conduct—particularly where it causes the arrest and detention of innocent persons—commonly requires immediate custody.
• The judge was not required to spell out every mitigation factor individually; the overall balancing exercise was plainly undertaken and was open to him.

3. Analysis

3.1 Precedents cited

3.2 The sentencing framework applied

Three features of the sentencing exercise shaped the result:

• Guideline categorisation and starting points: the judge placed the more serious counts within higher culpability/harm categories (notably “B1” for two counts), with a starting point stated as two years’ imprisonment for each of those offences when viewed in isolation.
• Totality and concurrency: the judge treated one perverting-the-course-of-justice count as the lead offence and imposed concurrent terms on the others, adjusting to reflect the overall criminality without “double counting”.
• Suspension guideline balancing: the judge recognised factors pointing toward suspension but concluded they were outweighed by the seriousness and the need for immediate punishment.

3.3 Legal reasoning: why the Court of Appeal refused to interfere

(a) The appellate threshold: “weight” arguments rarely succeed

A central holding is methodological: once it is accepted that (1) the custody threshold is crossed, (2) the sentencing judge applied the suspension guideline, and (3) no error of principle is identified, the appeal becomes a disagreement with the judge’s evaluative balance. The Court of Appeal emphasised that this is ordinarily not enough: it will not revisit the balancing exercise unless the decision was outside the range of reasonable sentencing outcomes.

(b) Seriousness: wrongful arrest/detention of innocents as a powerful factor against suspension

The court treated the consequences for third parties as a core aggravating feature: the offending triggered police action, investigation, and the detention of innocent individuals for substantial periods. It stressed that offences which divert police resources and unjustly subject others to arrest and custody are “so serious” that immediate custody will “often” be required.

The court also noted:

• Multiplicity and duration: conduct occurred via multiple actions over approximately four months, rather than being a single impulsive incident.
• Real-world harms: innocent people were detained for a combined period of about 25 hours, and one allegation targeted a particularly vulnerable individual (in supported accommodation).

(c) Mitigation and suspension factors were not ignored

The appellant relied on youth/immaturity, relationship pressure, delay, limited antecedents, and rehabilitation prospects. The Court of Appeal accepted these were relevant considerations but held they were matters for the sentencing judge’s assessment. Importantly, it rejected the idea that the judge was obliged to enumerate every point: a sentencing judge may lawfully express an overall balancing conclusion without itemising each factor, provided it is clear the correct framework was applied.

(d) Totality: an overall proportionate outcome consistent with immediate custody

The court endorsed the judge’s totality approach: selecting a lead offence, using concurrency to reflect the overall criminality, and arriving at an overall term which already incorporated the available mitigation (including immaturity). On that footing, the refusal to suspend did not render the outcome excessive or wrong in principle.

3.4 Impact

Although fact-specific, the decision reinforces several practical points likely to influence future sentencing and appeals:

• Suspension is difficult to secure on appeal where the complaint is “insufficient weight”: absent a demonstrated misdirection, failure to consider a material factor, or an outcome outside the reasonable range, the Court of Appeal will not re-run the suspension balancing exercise.
• Perverting-the-course-of-justice conduct causing wrongful detention will commonly require immediate custody: especially where it is repeated, involves fabrication, or targets vulnerable persons.
• Youth/immaturity and relational dynamics may mitigate length but not necessarily justify suspension: particularly where the offender is a willing participant and the offending is sustained and consequential.
• Sentencing remarks need not be exhaustive: a coherent application of guideline structure and an intelligible overall balance can suffice.

4. Complex concepts simplified

• “Perverting the course of justice”: conduct intended to interfere with the administration of justice (for example, making false allegations designed to cause an innocent person to be investigated or arrested).
• Section 45 Serious Crime Act 2007: an offence of encouraging or assisting another to commit an offence, where the defendant believes the offence will be committed (here, encouragement/assistance connected to a contemplated perversion of justice).
• Custody threshold: the point at which the seriousness of the offence(s) is such that only a custodial sentence can be justified.
• Suspended sentence order: a custodial term is imposed but not activated immediately; it is served only if the offender breaches conditions or commits further offences during the operational period (subject to the statutory/regulatory scheme).
• Totality: when sentencing for multiple offences, the court ensures the overall sentence is proportionate to the total offending, often by selecting a lead offence and using concurrency/consecutivity appropriately.
• Newton hearing: a hearing to resolve factual disputes affecting sentence following a guilty plea; none occurred because an agreed basis of plea was accepted.

5. Conclusion

[2026] EWCA Crim 496 affirms a restrained appellate approach to suspension decisions: where the sentencing judge has applied the suspension guideline and reached a reasoned evaluative balance, the Court of Appeal will not interfere merely because a different judge might have suspended the term. The case also underscores that repeated, deliberate fabrications leading to the wrongful arrest and detention of innocent persons will commonly be viewed as so serious that immediate custody is justified, even where there is significant personal mitigation.