Calvert, R v

In sentencing for manslaughter by reason of provocation, the degree of provocation must be assessed on a continuum within the guideline categories. The court must also give proper weight to all aggravating and mitigating circumstances.

Where a young offender acted spontaneously in genuine and understandable fear, initially in self-defence, substantial provocation, youth and immediate remorse may justify a sentence at the lower end of the applicable range. The grave consequences of the offence and a frenzied, grossly excessive response remain material aggravating features.

The appellant, aged 15, stabbed his friend after the friend pinned him to a bed, gripped his throat and attempted to stab him in the face with a screwdriver. The appellant struck repeatedly with a knife which he had picked up in panic. One wound caused fatal blood loss.

At Liverpool Crown Court, the appellant was acquitted of murder but convicted of manslaughter by reason of provocation. He received seven years’ detention. He appealed on the ground that the sentencing judge had insufficiently reflected the degree of provocation, his age and the mitigation.

The central issue was whether the sentence was wrong in principle or manifestly excessive under the sentencing guideline for manslaughter by reason of provocation.

1. Appeal allowed. The court substituted four and a half years’ detention for the sentence of seven years, with the same direction for time spent on remand.

2. The sentencing judge was entitled to find that the appellant knew that he had taken up a knife and was stabbing the deceased. The judge was also entitled to characterise twelve knife blows as grossly disproportionate to the violence faced. Those findings remained the basis for the appeal.

3. However, the provocation was very significant and acute. The deceased suddenly restrained the appellant and attempted to strike his face with a screwdriver. The appellant’s initial response was spontaneous, defensive and unpremeditated. He had not brought the knife to the scene, and had seized it as the nearest available object.

4. The appellant’s youth was an important mitigating circumstance. At 15, he could not be expected to react to danger or assess reasonable means of self-defence as an older person might. His immediate and continuing remorse also carried substantial weight.

5. The offence properly remained in the guideline’s middle category of substantial provocation, rather than the high category. Nevertheless, it lay at the top of that category and, taking account of the appellant’s age and other mitigation, in the lower region of its sentencing range. The seven-year sentence was therefore manifestly excessive.

• Court of Appeal (Criminal Division) — allowed the appeal against sentence and substituted four and a half years’ detention: [2009] EWCA Crim 1287.
• Crown Court at Liverpool — acquitted the appellant of murder, convicted him of manslaughter by reason of provocation, and imposed seven years’ detention.