R v Jack Douglas

Where equally culpable young co-offenders fall on opposite sides of a statutory age boundary, the sentencing court must respect Parliament’s different starting points. It may reduce the older offender’s sentence to mitigate disparity, but must not increase the younger offender’s minimum term above the term appropriate if sentenced alone merely to achieve parity. Whether a minimum term is manifestly excessive requires an overall assessment of the offence, aggravating and mitigating features, and credit for an early guilty plea. An unlawful concurrent sentence may be corrected by limited leave even where the correction has no practical effect.

Jack Douglas, aged 16 when he murdered Sacad Ali, pleaded guilty at the first reasonable opportunity. The Crown Court at Sheffield imposed detention during His Majesty’s pleasure with a minimum term of 14 years and 106 days, together with a concurrent 12-month sentence for possession of a knife.

A single judge refused leave to appeal against the minimum term. On renewal, the applicant argued that the sentencing judge had treated the aggravating factors as outweighing the mitigation and had failed to achieve parity with his 17-year-old co-offender, Griffin, whose culpability and maturity had been found to be equivalent. The central issues were whether the minimum term was manifestly excessive and whether the sentence on the knife-possession count was lawful.

1. Minimum term. Leave to appeal against the minimum term was refused. Schedule 21 to the Sentencing Act 2020 prescribed different starting points for offenders aged 16 and 17 who took a knife to the scene for the purposes of violence: 17 years for the applicant and 23 years for Griffin.
2. Parity between co-offenders. The statutory distinction based on chronological age could not be ignored. However, where co-offenders were otherwise identical in culpability and maturity, the judge could mitigate the disparity by reducing the older offender’s term. It was not permissible to uplift the younger offender’s minimum term above the level appropriate if he had been sentenced alone merely to narrow the difference.
3. Assessment of excessiveness. The sentencing judge had been entitled to conclude that the significant aggravating factors outweighed the mitigation. The Court of Appeal considered the sentence as a whole, including the planned and sustained group attack, the applicant’s mitigation, and his early guilty plea. The minimum term fairly reflected the case and was not arguably manifestly excessive.
4. Comparison with Griffin. The judge’s lesser uplift for Griffin was generous. He had also allowed more than one-sixth credit for Griffin’s guilty plea and had miscalculated one-sixth of 20 years. Those errors operated in Griffin’s favour and did not make the applicant’s sentence excessive.
5. Knife-possession count. The sentence of 12 months’ detention was unlawful. Limited leave was granted solely to quash it, and a concurrent 12-month detention and training order was substituted. The correction made no practical difference because the sentence was subsumed by the minimum term.

• Court of Appeal (Criminal Division): On 31 July 2025, the court refused leave to appeal against the minimum term but granted limited leave and allowed the appeal to the extent necessary to quash the unlawful sentence on count 2 and substitute a concurrent 12-month detention and training order: [2025] EWCA Crim 1158.
• Crown Court at Sheffield: On 28 November 2024, the applicant was sentenced to detention during His Majesty’s pleasure with a minimum term of 14 years and 106 days, together with a concurrent 12-month sentence for possession of a knife.
• Single judge of the Court of Appeal: Refused leave to appeal against the minimum term. The applicant renewed the application.