R v Billy Chamberlain

Where sentencing evidence indicates that an offender may have a mental disorder, developmental disorder or neurological impairment relevant to disposal, the sentencer must address the applicable Mental Disorder Guideline. The sentencer must decide whether there is a sufficient connection between the condition and the offending, assess whether culpability is reduced, and give clear reasons for the assessment and its extent. A failure to engage with that issue can make the sentence wrong in principle and manifestly excessive. On re-sentencing for dangerous driving, reduced culpability may place the offence in a lower guideline bracket without diminishing its seriousness. A later sentence may be considered where it concerns offending committed before the index offence.

The appellant pleaded guilty to dangerous driving and received nine months’ immediate imprisonment, together with a three-year four-month driving disqualification. No separate penalty was imposed for driving without a licence and without insurance. He appealed against sentence, arguing that insufficient weight had been given to mitigation, that the Mental Disorder Guideline and other relevant sentencing guidance had not been considered, and that a later conviction had been treated incorrectly.

The sentencing material referred to autism spectrum disorder, ADHD, low intellectual ability, developmental delay and immaturity. The central issue was whether the sentencing court had properly assessed the connection between those matters and the offending, and their effect on culpability and disposal.

Appeal allowed. The sentence of nine months’ immediate custody and the original driving disqualification were quashed.

1. The sentencing court ought to have considered the Mental Disorder Guideline. The pre-sentence and psychological reports contained evidence of a mental disorder which had, or might have had, a bearing on the appropriate disposal. Under the guideline, culpability may be reduced where the offender was suffering from an impairment or disorder at the time of the offence and there is a sufficient connection between that condition and the offending. The sentencer must make the assessment independently. The sentencer must also state clearly whether culpability was reduced, the reasons for and extent of any reduction, and, where relevant, the reasons for departing from expert evidence.
2. The court accepted the unchallenged evidence that the appellant had ASD and ADHD, a low IQ, developmental delay and below-average maturity. There was a clear connection between those matters and the offending. His impaired consequential thinking and lack of empathy contributed to his failure to appreciate the danger posed by his driving. His culpability was therefore reduced to a significant degree.
3. The recorder’s failure to consider the guideline and to engage with culpability in light of the mental impairment produced a sentence wrong in principle and manifestly excessive. Grounds 1 and 3 did not require determination. Ground 4 failed: the recorder was entitled to take some account of a January 2022 sentence because it concerned conduct predating the index offending, and was entitled to regard the offending as the third occasion on which the appellant had put the public at risk by driving.
4. On re-sentencing, the dangerous driving fell within the lower culpability bracket B, with harm category 2. Aggravating features included previous convictions, serious driving convictions, and driving without a licence and insurance. Mitigation included delay, personal circumstances and the late guilty plea. The Youth Guideline added nothing because the relevant immaturity formed part of the mental-disorder assessment and the appellant was beyond chronological youth.
5. The substituted sentence was an eighteen-month community order with a twenty-day rehabilitation activity requirement. Disqualification was reduced to two years, with an extended driving test required. The court considered that period necessary despite the twelve-month minimum because of the dangerous circumstances and public protection, while three years was too long in the appellant’s circumstances.

• Court of Appeal (Criminal Division): on [2024] EWCA Crim 476, allowed the appeal against sentence, quashed the custodial sentence and original disqualification, and substituted an eighteen-month community order, a two-year disqualification and an extended driving test requirement.
• Sentencing court: on 19 February 2024, imposed nine months’ immediate imprisonment for dangerous driving and disqualification for three years and four months.