Trespass to the Person — Assault, Battery and False Imprisonment

Trespass to the person protects bodily integrity and liberty against direct, intentional interference. It comprises three distinct torts — assault, battery and false imprisonment — together with the separate rule in Wilkinson v Downton for intentionally caused harm. Unlike negligence, these torts are actionable per se (without proof of damage) and turn on intentional, direct conduct. This guide explains each tort, the intention and directness requirements, the defences, and the leading authorities, with links to full briefs.

Intention and directness. Trespass requires an intentional and direct act. Negligent or merely consequential interference is dealt with in negligence, not trespass — Letang v Cooper (1965) (a claimant run over while sunbathing had to sue in negligence, because the act was not intentional). What must be intended is the act, not necessarily the harm.

Battery. Battery is the intentional and direct application of unlawful force to another person. The force need not be hostile or harmful — any unwanted physical contact beyond the bounds of acceptable everyday conduct can suffice. Collins v Wilcock (1984) drew the line at contact “generally acceptable in the ordinary conduct of daily life”: a police officer who took hold of a woman’s arm to detain her, without arresting her, committed a battery.

Assault. Assault is an act that intentionally causes the claimant to apprehend the immediate infliction of unlawful force. There need be no contact — apprehension is enough — but the threatened force must be imminent. Words can constitute an assault, and words can also negate one (a threat conditional on the claimant doing something they need not do may not be an assault). Assault and battery often occur together but are conceptually separate.

False imprisonment. False imprisonment is the intentional and unlawful complete restraint of a person’s freedom of movement. The restraint must be total: a partial obstruction that leaves a reasonable means of escape is not false imprisonment — Bird v Jones (1845) (closing part of a bridge was not imprisonment because the claimant could go back the other way). The claimant need not be aware of the restraint at the time — Murray v Ministry of Defence (1988).

The rule in Wilkinson v Downton. Distinct from trespass is the tort in Wilkinson v Downton (1897), which provides a remedy for harm intentionally caused by words or conduct that are not a direct application of force (a practical joke that the defendant’s wife was badly injured caused the claimant nervous shock). The Supreme Court restated the tort in Rhodes v OPO (2015): it requires a conduct element (words or conduct directed at the claimant for which there is no justification), a mental element (an intention to cause at least severe distress), and a consequence element (physical harm or a recognised psychiatric illness). Recklessness is not enough.

Defences. The main defences are consent (which makes contact lawful — central to medical treatment and contact sports), lawful authority (such as a lawful arrest or statutory power), self-defence (reasonable force to protect oneself or another), and necessity. Consent and lawful arrest are the defences most often examined: the claimant cannot complain of force to which they agreed or which the law authorised.

Relationship to human rights. False imprisonment overlaps with the right to liberty under Article 5 of the European Convention, and unlawful detention by a public authority can give rise to both a tort claim and a Human Rights Act claim. Trespass torts remain important precisely because they are actionable without proof of loss, making them a vehicle for vindicating rights.

How to use this in an exam. Identify which trespass tort (or Wilkinson v Downton) is engaged, confirm intention and directness, then run the defences — most often consent or lawful authority. Keep trespass and negligence separate: if the interference was careless rather than intentional, the claim lies in negligence (see our negligence guide). Read this alongside our vicarious liability guide (relevant where an employer is sued for an employee’s trespass), our negligence guide for the careless counterpart, and our Convention rights guides, and explore the Tort topic hub. Build recall with our tort law flashcards, then test application on our past papers — working through real past-paper problem questions is the fastest way to learn to spot which trespass tort a fact pattern engages.