Section 18 assault: GBH with intent, and the sentence you face

A Section 18 charge is a very serious assault offence. Its proper name is wounding or causing grievous bodily harm with intent, and it is the offence the Crown charges when it determines that you meant to cause really serious harm rather than simply causing it. This page sets out what the prosecution has to prove, how the sentencing guideline works in practice, and where the line between Section 18 and Section 20 actually falls.

In short: Section 18 of the Offences Against the Person Act 1861 is wounding or causing grievous bodily harm with intent. It carries a maximum of life imprisonment, it is indictable only, and it is tried in the Crown Court; it cannot be dealt with in the Magistrates' Court. The difference from Section 20 is the level of criminal intent: Section 20 requires only that you intended or foresaw some harm and carries a maximum of five years, while Section 18 requires an intention to cause really serious harm. Under the sentencing guideline, starting points for Section 18 run from around four years for the least serious category to twelve years and above for the most serious. Unlike Section 20, a first offence rarely avoids immediate custody.

Section 18 is a Crown Court matter and criminal legal aid is available for it. Whether the charge should be section 18 or section 20 is arguable in many cases, and it is the single most valuable argument in this area. Speak to a criminal defence solicitor today.

What is a Section 18 assault?

Section 18 of the Offences Against the Person Act 1861 covers two things: wounding with intent and causing grievous bodily harm with intent. A wound means a break in the continuity of the skin, so a cut can be a wound even where the injury is not especially serious. Grievous bodily harm means really serious harm, judged on the injury as a whole and on the effect on the particular complainant rather than against a fixed list.

Because the offence is indictable only, it goes to the Crown Court from the first hearing. There is no option to have it tried by Magistrates.

GBH with intent: what "intent" actually means

Intent is what separates Section 18 from everything below it, and it is narrower than people assume. It is not enough that you meant to hit someone, or that serious harm resulted. The Crown must prove you intended to cause really serious harm, or intended to resist or prevent lawful arrest.

Courts infer intent from the circumstances: whether a weapon was used and what kind, where and how many times a person was struck, whether an attack continued after they were defenceless, whether it was planned, and what was said before and after. An impulsive single punch that causes a catastrophic injury is more likely to be a Section 20 case, not a Section 18 case, because the harm was far greater than the intention. That distinction is where most Section 18 cases are genuinely fought.

Section 18 or Section 20: the difference that decides your sentence

The injuries in a Section 18 case and a Section 20 case can be identical. What differs is the state of mind the Crown says you had. Reducing a Section 18 to a Section 20 changes the maximum sentence from life to five years and moves the realistic outcome by years, which is why it is so crucial to correctly assess. See our guides to Section 20 GBH and to ABH compared with GBH.

What are the points to prove under Section 18?

To convict, the prosecution must prove each of the following, to the criminal standard:

1. That you unlawfully wounded or caused grievous bodily harm. Unlawfully matters: force used in reasonable self-defence is not unlawful.
2. That the injury amounted to a wound (a break in the skin) or to really serious harm.
3. That your act caused that injury.
4. That at the time you intended to cause really serious harm or intended to resist or prevent a lawful arrest.

Where the Crown cannot prove intent to the criminal standard but can prove you foresaw some harm, the more appropriate charge would be Section 20 GBH, and a jury can return that as an alternative on a Section 18 indictment. The prosecution applies the CPS charging standard for offences against the person when deciding which section to charge, and that decision can be challenged.

Section 18 sentencing guidelines: culpability, harm and the categories

The Sentencing Council's guideline for causing grievous bodily harm with intent grades the offence by culpability and by harm, then sets a starting point from the combination of the two. The court adjusts from that starting point for aggravating and mitigating factors and applies credit for a guilty plea last.

Culpability is raised by a significant degree of planning, use of a highly dangerous weapon, prolonged or persistent assault, strangulation, a leading role in group action, and deliberately targeting a vulnerable person. Harm is assessed on the severity and permanence of the injury and its effect on the complainant's life.

What moves the sentence up or down

Sentence increases for previous convictions for violence, offending on bail, an offence committed in a domestic context, targeting an emergency worker, and offences committed while under the influence. It reduces for genuine remorse, no previous convictions, a serious medical condition, a mental disorder or learning disability linked to the offending, being a sole or primary carer, and where there was provocation falling short of a defence.

Credit for a guilty plea

A guilty plea entered at the first opportunity attracts the maximum reduction of one third. This decreases the later the plea is entered, falling to a quarter after the first hearing and to a tenth by the first day of trial. On a Section 18 starting point measured in years, the difference between pleading early and pleading late is measured in years, too.

Whether your case is charged as Section 18 or Section 20, and which category it falls into, are both arguable, and both are usually decided before trial. We defend serious violence cases in Crown Courts across London, Birmingham and Manchester, on legal aid and privately. Talk to our GBH defence solicitors today

What is the minimum sentence for a Section 18 assault?

There is no fixed statutory minimum for Section 18 GBH. At the lowest end of both culpability and harm, the sentence range is between two and four years. A suspended sentence is technically possible at the very bottom of the range where culpability and harm are both low, and there is strong personal mitigation, but this will be in very exceptional circumstances.

This is the clearest practical difference from Section 20, and from the lesser offence of actual bodily harm, where a community order is a realistic outcome for a first offence with lower harm.

An example of a Section 18 case

Two men argue outside a bar. One picks up a bottle, breaks it, and uses it on the other's face, causing permanent scarring. The use of a weapon deliberately acquired at the scene, the target of the blow, and the permanence of the injury all point to an intention to cause really serious harm, so this is charged as Section 18.

Change one fact and the offence changes. If the same injury results from a single punch thrown in a scuffle, with no weapon and no continuation once the other man is down, the Crown will struggle to prove intent to cause really serious harm and the proper charge is Section 20, even though the injury is identical.

Can you get bail on a Section 18 charge?

Bail is possible but is contested more often than not, and the Crown will usually oppose it on a Section 18. The court weighs the risk of further offences, of interference with witnesses, and of failure to surrender, and it will look at the strength of the evidence and your record.

Conditions such as a residence requirement, a curfew, an exclusion zone and a non-contact condition are common. A refused application can be renewed, and a Crown Court judge can grant bail that magistrates refused.

What to do if you are accused or charged with Section 18

Get representation before the interview if you can. What is said about intent in a police interview is frequently the strongest evidence the Crown has on the one element it must prove. Do not discuss the incident with anyone else involved, and preserve anything that shows the sequence of events, including CCTV that may be overwritten within days. See our page on violent crime defence for further information.

Frequently asked questions

Is GBH with intent more serious than GBH?

Yes. GBH with intent is Section 18 and carries a maximum of life imprisonment. GBH without intent is Section 20 and carries a maximum of five years. The injuries can be the same; the difference is what the Crown proves you intended.

Do you always go to prison for GBH with intent?

Almost always. Immediate custody is the normal outcome for Section 18, with starting points measured in years. Suspended sentences occur only at the very bottom of the range and in extremely exceptional circumstances.

What is the sentence for GBH with intent?

The maximum is life imprisonment. In practice, guideline starting points run from around four years for the least serious category up to twelve years and above for the most serious, before adjustment and plea credit.

Can a Section 18 charge be reduced to Section 20?

Yes, and it frequently is, either by the Crown accepting a plea to Section 20 or by a jury returning section 20 as an alternative verdict. It turns on whether intent to cause really serious harm can be proved.

How long does a Section 18 case take?

As an indictable-only offence it is sent to the Crown Court at the first hearing, and contested cases commonly take a year or more from charge to trial, longer where forensic or medical evidence is required.

Contact our criminal defence lawyers today

If you are due to attend the police station, require any urgent specialist advice, or immediate representation for Section 18 police charges, please do not hesitate to get in touch.

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Written by James O’Donnell, crime solicitor at J D Spicer Zeb. J D Spicer Zeb is authorised and regulated by the Solicitors Regulation Authority, SRA no. 55671. This article explains the law of England and Wales and is general information, not advice on your case.

Last reviewed: August 13th 2026