Seriousness, offence category, aggravation and mitigation

Seriousness concerns both the offender’s culpability and the harm caused, intended or foreseeably risked, as the relevant law and guideline require. Culpability is the degree of blameworthiness: for example, planning, role and relevant intention. Harm concerns the consequences and risks recognised by that particular guideline. The labels and category boundaries are offence-specific. Do not transfer an assault grid to fraud or assume actual injury is always the only relevant harm. Sources: Sentencing Code, s.63; Sentencing Council, General guideline and applicable offence guideline.

The facts must come from the conviction, admissions, an acceptable basis of pleaGlossary termBasis of plea, or proper fact-finding. The prosecution’s summary is not proof of a disputed aggravating allegation. A jury’s verdict constrains the judge’s sentencing findings: sentence cannot contradict an acquittal or treat an unproved more serious offence as the conviction. Where a guilty plea leaves a material dispute, apply section 7 before using the disputed feature to increase seriousness. Sources: CrimPR 25.16(4); Criminal Practice Directions (CPD), 9.3.3.

Category factors. First identify the category using the specified culpability and harm features. A feature already used at this stage must not be counted again as an additional aggravating factor. This is a check against double counting, not a reason to ignore a distinct additional consequence merely because the facts are connected. Sources: Sentencing Council, General guideline and offence-specific guidelines.

Additional aggravation. Next consider features that increase seriousness but have not already been accounted for. Relevant previous convictions are assessed by their nature, relevance and elapsed time; they are not a mechanical multiplier. Offending on bail and the statutory hostility provisions have their own statutory treatment. Where a separately charged aggravated offence already incorporates the same hostility, do not add it again as though it were a new fact. The advocate should identify the exact aggravating provision, the evidence and whether the guideline has already included it. Sources: Sentencing Code, ss.64–66; Sentencing Council, General guideline.

Offence mitigation. This concerns circumstances reducing the seriousness of the offence itself, such as a lesser role or limited involvement where the applicable guideline recognises them. The feature cannot be used twice, first to lower culpability and then to obtain the same reduction again. A claim that the prosecution has exaggerated the defendant’s role may be a disputed offence fact requiring a Newton hearing, rather than merely a plea for sympathy. Sources: Sentencing Code, s.63; CPD 9.3.3; General guideline.

Personal mitigation. This concerns the offender: maturity, mental or physical condition, caring responsibilities, genuine remorse, rehabilitation, and evidenced progress since the offence. Explain the relationship between the feature and a legitimate sentencing decision. A treatment plan may support a workable community order; the effect of imprisonment on a dependant may bear on proportionality. Neither fact automatically cancels harm or excuses the offence. Remorse is distinct from the procedural benefit of an early guilty plea. Sources: Sentencing Code, s.57; Imposition of community and custodial sentences guideline; guilty-plea guideline, section B.

Victim impact. A victim personal statement can provide evidence of the offence’s effects. It does not give the victim responsibility for choosing the sentence, and a wish for leniency or severity does not replace the court’s assessment. If a material allegation in the statement is disputed, address its evidential basis fairly; do not accept it merely because the document is emotionally compelling. Sources: CPD 9.5; CrimPR 25.16; General guideline.

A useful submission therefore distinguishes what happened, why it affects seriousness, what is personal mitigation, and what practical sentence can meet the lawful purposes. Under section 57, those purposes include punishment, reducing crime including deterrence, reform and rehabilitation, protecting the public including victims, and making reparation. They are not a requirement to maximise imprisonment. The express reference to victims in the public-protection purpose is part of the commenced 2026 amendments. Sources: Sentencing Code, s.57, as amended by Sentencing Act 2026, s.4; s.49(4).

Repair address. Category, double counting and personal mitigation are repaired here. When the dispute concerns whether the aggravating fact happened, return to section 7 rather than memorising a different percentage reduction.