Offences Against the Person
A client arrives at your office with a black eye, a broken nose, or a scar that will never fade, and before you can advise on anything else, you must answer one question: which offence did the other side commit? The non-fatal offences against the person form a ladder, each rung defined by the same two variables — how much harm resulted, and what the defendant meant by their conduct — and a solicitor's entire charging analysis, plea advice, and sentencing exposure calculation depends on correctly placing the facts on that ladder.
The ladder runs from common assault (assault and battery) at the bottom, through section 47 (assault occasioning actual bodily harm), to section 20 (malicious wounding or grievous bodily harm), and finally section 18 (wounding or causing grievous bodily harm with intent) at the top. Common assault is a summary-only creature of section 39 of the Criminal Justice Act 1988, carrying a maximum of 6 months' imprisonment. Sections 47, 18, and 20 all come from the same source: the Offences Against the Person Act 1861, a statute old enough to have been drafted before the invention of the telephone, yet still the backbone of everyday assault prosecutions in England and Wales.
The correct charging approach requires matching the injury and the defendant's state of mind against the ladder — assault, battery, s47, s20, s18 — because each rung demands proof of a different mental state, not just a different quantity of harm. A solicitor who charges by injury alone, ignoring mens rea, will get the analysis wrong.
Common assault is really shorthand for two separate offences that are frequently committed together but are conceptually distinct.
Assault — sometimes called psychic or technical assault — is intentionally or recklessly causing another person to apprehend immediate unlawful personal violence. Critically, assault does not require any physical contact at all. It is entirely about what the victim believes is about to happen to them.
Battery, by contrast, is the intentional or reckless application of unlawful force to another person, and it requires some application of physical force, however slight. Brushing a sleeve, tapping a shoulder to get attention without consent, or throwing a drink over someone can all satisfy the actus reus of battery even where the resulting harm is trivial.
The pairing matters practically: many street altercations begin with an assault (the raised fist, the aggressive advance) and complete with a battery (the punch that lands). But you can have either without the other — a threat shouted from a passing car is an assault without any battery; a punch thrown from behind, unseen and unanticipated, is a battery without any assault.
Assault Without Contact: How Far Does It Stretch?
Because assault turns entirely on the victim's apprehension, the courts have had to work out how that apprehension can be created and how immediate it must be.
Words alone can constitute an assault. This was settled decisively in R v Ireland, where silent telephone calls were held capable of amounting to assault because they caused the victim to fear immediate unlawful violence — the silence itself communicated menace. The same case, however, drew the outer limit: apprehension of violence that is merely possible at some point in the future, such as fear generated by a threatening letter received in the post, is not sufficient, because the threat lacks immediacy.
That immediacy requirement is more elastic than it first appears. Immediacy does not require instantaneous contact; it is satisfied if the victim fears violence within a relatively short timescale. In R v Constanza, a defendant's campaign of persistent letters and stalking conduct was held capable of causing the victim to fear immediate violence "at some time not excluding the immediate future" — the court refused to let an unseen, distant perpetrator escape liability just because the exact moment of attack was unpredictable. Similarly, in Smith v Chief Superintendent of Woking Police Station, a defendant staring through a victim's ground-floor window late at night was held to be a sufficient assault: the victim, terrified in her own bedroom, could reasonably apprehend that violence might follow imminently, even without a word being spoken.
Conditional threats do not escape liability either. In Read v Coker, a threat framed as conditional ("leave, or we'll break your neck") still amounted to an assault, because it caused the victim to apprehend immediate unlawful violence regardless of the condition attached. And the victim's own subjective fear is not the test: the victim need not actually be afraid, provided they apprehended the application of immediate unlawful force. Apprehension, not terror, is the operative state of mind.
Battery: The Force Can Be Indirect, and Omissions Count
Battery's actus reus is famously undemanding — force "however slight" suffices — but two extensions deserve close attention because they are exactly the kind of fact pattern SQE1 scenarios exploit.
First, the application of force can be indirect. In DPP v K, force set in motion through an object or substance — rather than delivered by the defendant's own hand — was held sufficient, because the defendant need not personally touch the victim so long as they set the mechanism of harm in motion.
Second, an omission can found liability for battery where the defendant created a dangerous situation and then failed to act to prevent harm, as in DPP v Santana-Bermudez, where a defendant who failed to warn a police officer conducting a search that he had hypodermic needles in his pocket was liable when the officer was injured. This dovetails with the classic continuing-act case, Fagan v Metropolitan Police Commissioner: a defendant who accidentally drove his car onto a police officer's foot committed no battery at that instant, because there was no coincidence of a guilty act and guilty mind — but the moment he realised what had happened and deliberately left the car where it was, the earlier "accident" transformed into a continuing act accompanied by the requisite intent, and a battery was complete.
The Mental Element Common to Both
The mens rea for assault is intention or recklessness as to causing the victim to apprehend immediate unlawful force; the mens rea for battery is intention or recklessness as to the application of unlawful force itself. In both cases, the relevant recklessness is subjective — following the foundational test in R v Cunningham — meaning the defendant must actually have foreseen the risk of the relevant consequence and unreasonably taken it anyway. A defendant who genuinely never contemplated that their conduct might frighten or touch the victim, however careless that failure of foresight might seem to an outside observer, does not satisfy this test.
Not every application of force is unlawful, either. Lawful chastisement, properly conducted sport, and valid consent are recognised defences to what would otherwise be a battery — a rugby tackle within the rules of the game, or a surgeon's incision consented to by the patient, is not a criminal application of force at all.
Once an assault or battery causes injury beyond the trivial, the analysis moves up the ladder to section 47 of the Offences Against the Person Act 1861, which criminalises assault occasioning actual bodily harm and carries a maximum sentence of 5 years' imprisonment.
The actus reus of section 47 has two components: there must be an assault or battery (proved exactly as above), and that assault or battery must cause actual bodily harm (ABH). The leading definition comes from R v Miller: ABH means any hurt or injury calculated to interfere with the health or comfort of the victim that is more than merely transient or trifling. This is a deliberately low threshold — it captures bruising, grazing, and swelling, not just fractures.
ABH's reach extends further than physical marks on the skin. R v Chan-Fook established that ABH can include a recognisable psychiatric illness, though it stops short of capturing mere emotions such as fear, distress, or panic — a diagnosed condition is required, not just an unpleasant feeling. T v DPP confirmed that even a momentary loss of consciousness can amount to ABH. And in one of the more memorable illustrations for students, DPP v Smith (2006) held that cutting off a substantial part of a person's hair without consent can amount to ABH — hair attached to the scalp, the court reasoned, falls within the meaning of "bodily," even though it is medically dead tissue.
Key point on mens rea: the mens rea of section 47 is identical to the mens rea for common assault or battery. The prosecution does not need to prove that the defendant intended or foresaw the actual bodily harm itself — only the underlying assault or battery. This was confirmed in R v Savage, where a defendant who threw a drink over the victim, intending only the battery of the splash, was liable under section 47 when the glass broke and cut the victim, even though she never intended or foresaw the cut at all. The harm simply has to flow from the assault or battery that was intended or foreseen.
This is a trap for the unwary: students instinctively want to match the seriousness of the mens rea to the seriousness of the harm charged, but section 47 explicitly does not require that correspondence. Causing a broken glass injury while only intending a minor splash is enough.
Section 20 criminalises unlawfully and maliciously wounding or inflicting grievous bodily harm, again carrying a maximum sentence of 5 years' imprisonment — the same ceiling as section 47, despite sitting one rung higher on the ladder in terms of harm, because what separates section 20 from section 18 is not the injury but the intent.
Grievous bodily harm (GBH) means, in the House of Lords' famous formulation from DPP v Smith (1961), "really serious" bodily harm. That phrase has since been softened at the edges: R v Saunders confirmed that GBH does not need to be permanent or life-threatening, only really serious, and that a jury direction using "serious" rather than "really serious" is not fatally defective. GBH is not limited to physical trauma either — R v Burstow held that a serious recognisable psychiatric injury can itself amount to grievous bodily harm.
A wound, meanwhile, is a legally distinct concept from GBH and has its own technical definition: JJC v Eisenhower held that a wound requires a break in the continuity of the whole skin — internal bleeding, however severe, does not count as a wound if the skin itself remains unbroken (in that case, a shotgun pellet that ruptured a blood vessel beneath the eye without piercing the skin was not a "wound," however alarming the injury looked). This matters because wounding and GBH are separate limbs of section 20: a wound need not itself be "serious" to satisfy the wounding limb, so a relatively minor cut can support a section 20 charge on the wounding limb even where it would never qualify as GBH in its own right.
Section 20's key verb, "inflict," has also been stretched well beyond its everyday meaning. R v Burstow held that inflict does not require an assault or battery in the technical sense — GBH can be inflicted through the direct or indirect application of force, or through no physical contact at all. In Burstow itself, a sustained campaign of stalking and harassment that caused the victim severe psychiatric injury, without a single moment of physical contact, was held capable of amounting to "inflicting" GBH. This decision effectively collapsed any meaningful distinction between "inflict" (section 20) and "cause" (section 18) as far as the need for direct contact is concerned.
The mens rea is where section 20 earns its lower maximum sentence relative to section 18. "Maliciously" in section 20 means intentionally or subjectively recklessly causing the relevant harm. Crucially, per R v Mowatt, the defendant does not need to foresee that the harm would be really serious — the prosecution only has to show that the defendant intended or foresaw the risk of some physical harm to some person, "albeit of a minor character." A defendant who throws a punch foreseeing only a bruise, but who in fact causes a fractured cheekbone, can still be convicted under section 20, because the foresight of some harm is all that section 20 mens rea demands — the actual severity of harm can outstrip what was foreseen.
Section 18 sits at the top of the ladder — wounding or causing grievous bodily harm with intent — and it is the only non-fatal offence carrying a maximum sentence of life imprisonment. It is, correspondingly, the most serious of the non-fatal offences against the person, precisely because it demands proof of specific intent rather than mere recklessness.
The actus reus mirrors section 20 (wounding or causing GBH), but the operative verb changes from "inflict" to "cause," and that change is deliberate: "causing" has a wider meaning than inflicting, requiring only that the defendant's act was a significant cause of the grievous bodily harm, without any need to establish the more technical connotations that once surrounded "inflict."
The real dividing line between section 18 and section 20 is mens rea. Section 18 requires proof that the defendant intended to cause grievous bodily harm, or intended to resist or prevent the lawful apprehension or detainer of any person — recklessness is not sufficient. This is the single most important distinction on the entire ladder: a defendant who recklessly causes even catastrophic injury faces, at most, section 20's 5-year ceiling; only proof of specific intent to cause really serious harm exposes them to a life sentence under section 18.
Intent here can be either direct or oblique. Where a defendant's stated purpose was to cause GBH, direct intent is straightforward to prove. Where it was not, the jury may find oblique intent using the virtual certainty test from R v Woollin: the jury may find intention where the relevant consequence was a virtual certainty of the defendant's act, and the defendant appreciated that it was so. This is a question the jury is entitled — not required — to answer in the defendant's favour or against them, based on all the evidence.
Because section 20 requires only foresight of some harm while section 18 requires intent to cause really serious harm, section 20 operates as a lesser included offence of section 18: where the prosecution charges section 18 but the jury is not satisfied that the specific intent has been proved, they may still convict of section 20 provided its lower threshold is met on the same facts. This gives juries — and prosecutors advising on plea — real flexibility where the injury is undeniably serious but the defendant's state of mind is genuinely contested.
| Offence | Statute | Actus Reus | Mens Rea | Max Sentence |
|---|---|---|---|---|
| Common assault / battery | s39 CJA 1988 | Apprehension of immediate force (assault) / application of force (battery) | Intention or subjective recklessness (Cunningham) | 6 months |
| ABH | s47 OAPA 1861 | Assault or battery causing harm more than transient/trifling (Miller) | Same as assault/battery — harm itself need not be foreseen (Savage) | 5 years |
| Malicious wounding/GBH | s20 OAPA 1861 | Wound (break in skin, Eisenhower) or really serious harm (DPP v Smith 1961) | Foresight of some harm, however minor (Mowatt) | 5 years |
| Wounding/GBH with intent | s18 OAPA 1861 | Wound or GBH, "caused" (wider than "inflict") | Specific intent to cause GBH (direct or Woollin oblique) | Life |
For each of sections 47, 20, and 18, the prosecution must also prove a causal link between the defendant's act and the resulting harm, using the ordinary rules of factual and legal causation familiar from homicide offences. Two features recur in offences-against-the-person scenarios specifically:
The thin skull rule applies here just as it does to unlawful act manslaughter — a defendant must take their victim as they find them in relation to any pre-existing vulnerability, whether physical or (after Burstow and Chan-Fook) psychiatric. A defendant cannot escape liability for GBH by arguing that a victim with an unusually thin skull, or an unusually fragile psychological state, suffered more serious harm than a "normal" victim would have.
An intervening act by a third party or by the victim can break the chain of causation, but only if it is sufficiently independent and unforeseeable — a bar that is rarely cleared in practice. A victim who makes a reasonable escape attempt, or medical treatment that goes wrong in an ordinary way, will not usually break the chain; only a truly free, deliberate, and informed act, or a genuinely unforeseeable event, will do so.
Consent operates very differently depending on where an injury sits on the ladder. Valid consent to the risk of harm can be a full defence to battery and section 47 in contexts like properly conducted sport — a boxer who consents to being punched within the rules cannot later charge their opponent with battery. But consent to serious harm outside recognised exceptions is not a defence to section 20 or section 18. This was established emphatically in R v Brown, where consent was held not to be a defence to injuries inflicted during consensual sadomasochistic activity charged under sections 47 and 20 — the House of Lords drew a firm public-policy line refusing to extend consent to deliberately inflicted serious injury outside categories such as surgery, sport, and tattooing.
Self-defence applies across the whole ladder and requires two elements: the defendant must have honestly believed that force was necessary, and the force used must have been objectively reasonable in the circumstances as the defendant believed them to be. The subjective and objective elements are not in tension — the objective reasonableness test is applied to the facts as the defendant honestly (even if mistakenly) believed them, not to the facts as they actually were. R v Williams (Gladstone) is the leading authority: a defendant's genuinely held but mistaken belief in the need for self-defence is judged on the facts as the defendant believed them to be, even where that belief turns out to be unreasonable — provided it was honestly held, an unreasonable mistake does not itself defeat the defence, though it may make the jury's task of believing the defendant harder in practice.
When a fact pattern lands on your desk, the workflow is always the same: identify the harm (none, transient, ABH, wound, or GBH), then interrogate the defendant's state of mind against that harm. A slap causing no mark is common assault. A push that causes bruising is section 47, regardless of whether the defendant foresaw bruising specifically. A broken nose from a punch thrown in a fight, where the defendant foresaw only "some harm," lands at section 20. The same broken nose, thrown by a defendant who was trying to break the victim's jaw, lands at section 18 — same injury, wholly different sentencing exposure, because the ladder is built on intent as much as on injury.