Introduction
The tort of negligence is a central pillar of civil liability in England and Wales, providing a remedy for individuals who have suffered harm due to the unreasonable conduct of others. Unlike torts that require intentional wrongdoing, negligence is concerned with careless behaviour. As defined in the case of Blyth v Birmingham Waterworks Co (1856), negligence is the "omission to do something which a reasonable man, guided upon those considerations which ordinarily regulate the conduct of human affairs, would do, or doing something which a prudent and reasonable man would not do". This essay will first define negligence by explaining the three essential elements a claimant must prove for a successful claim, with reference to key case law including the foundational case of Donoghue v Stevenson [1932] AC 562. It will then proceed to discuss the main defences that a defendant may raise to either defeat the claim or reduce the amount of damages payable: contributory negligence, volenti non fit injuria, and illegality.
The Essential Elements of a Negligence Claim
For a claimant to succeed in a negligence claim, they must establish three key elements on the balance of probabilities: that the defendant owed them a legal duty of care; that the defendant breached this duty; and that the breach caused damage to the claimant which was not too remote.
1. A Duty of Care
The first hurdle for any claimant is to prove that the defendant owed them a duty of care. The modern concept of the duty of care was established in the landmark case of Donoghue v Stevenson [1932] AC 562. In this case, Mrs Donoghue became ill after drinking a bottle of ginger beer which contained the decomposed remains of a snail. As she had not purchased the drink herself, she could not sue in contract. The House of Lords held that the manufacturer owed her a duty of care. Lord Atkin formulated the ‘neighbour principle’, stating: "You must take reasonable care to avoid acts or omissions which you can reasonably foresee would be likely to injure your neighbour." He defined a neighbour as "persons who are so closely and directly affected by my act that I ought reasonably to have them in contemplation as being so affected when I am directing my mind to the acts or omissions which are called in question".
While the neighbour principle provided the foundation, the test for establishing a duty of care has since been refined. The current test, established in Caparo Industries plc v Dickman [1990] 2 AC 605, sets out a three-stage approach. A duty of care will be imposed if:
- The harm was reasonably foreseeable: It must be foreseeable that the defendant's actions could cause damage to the claimant.
- There was a relationship of proximity: There must be a sufficient legal closeness between the claimant and the defendant. This could be physical closeness, but can also relate to the relationship between them, such as a doctor and patient.
- It is fair, just and reasonable to impose a duty: This is a policy consideration, allowing courts to limit the expansion of negligence where it would not be in the public interest to impose a duty, for example, on public bodies like the police in the course of their operational duties.
2. Breach of Duty
Once a duty of care is established, the claimant must prove that the defendant breached it. This means showing that the defendant’s conduct fell below the standard of care expected of them. The standard is an objective one: that of the ‘reasonable person’ (Blyth v Birmingham Waterworks Co (1856)). The court does not ask what this particular defendant could have done, but what a reasonable person in their position would have done.
This standard may be adjusted. For example, a person holding themselves out as having a particular skill, such as a doctor or an electrician, will be judged by the standard of a reasonably competent professional in that field (Bolam v Friern Hospital Management Committee [1957] 1 WLR 582). Conversely, a lower standard is expected of a child.
In determining whether a breach has occurred, the court will balance several factors, including:
- The likelihood of the harm: If the risk of injury is very low, it may be reasonable for the defendant to take no precautions. In Bolton v Stone [1951] AC 850, a cricket ball was hit out of the ground, injuring the claimant. As this had only happened a few times in many years, the risk was considered so small that there was no breach.
- The seriousness of the potential harm: If there is a risk of very serious injury, greater care should be taken. In Paris v Stepney Borough Council [1951] AC 367, a garage worker who was already blind in one eye was not given safety goggles. When a piece of metal blinded his other eye, the employer was held liable because the consequences of injury were much more serious for him.
- The cost and practicality of taking precautions: The court considers how easily the risk could have been avoided. If precautions are simple and inexpensive, a defendant is more likely to be found in breach for failing to take them (Latimer v AEC Ltd [1953] AC 643).
3. Causation and Remoteness
Finally, the claimant must show that the defendant’s breach caused their loss. This involves two stages: factual causation and legal causation (remoteness).
Factual causation is determined using the ‘but for’ test: but for the defendant’s breach, would the claimant have suffered the harm? In Barnett v Chelsea & Kensington Hospital Management Committee [1969] 1 QB 428, a man died of arsenic poisoning after a hospital doctor negligently sent him home without being examined. However, evidence showed that he would have died even if he had been properly treated, so the hospital's negligence was not the factual cause of his death.
Legal causation requires that the damage is not too ‘remote’ a consequence of the breach. The test for remoteness, from The Wagon Mound (No 1) [1961] AC 388, is whether the type of damage suffered by the claimant was reasonably foreseeable. If the type of harm is foreseeable, the defendant is liable for the full extent of it, even if the precise manner in which it occurred or its severity was not foreseeable (the ‘egg-shell skull’ rule).
Defences to a Negligence Claim
If the claimant successfully proves all three elements, the defendant can still avoid or reduce their liability by raising a defence. The three main defences are contributory negligence, consent (volenti non fit injuria), and illegality (ex turpi causa non oritur actio).
Contributory Negligence
This is a partial defence, governed by the Law Reform (Contributory Negligence) Act 1945. It applies where the claimant’s own carelessness has contributed to the damage they suffered. If the defence is successful, the court will apportion blame between the claimant and defendant and reduce the claimant's damages accordingly. For example, in Froom v Butcher [1976] QB 286, the claimant suffered more severe injuries in a car accident caused by the defendant because he was not wearing a seatbelt. Lord Denning stated that while the failure to wear a seatbelt did not cause the accident, it contributed to the injuries, and his damages were reduced by 20%. The reduction in damages depends on the extent of the claimant's fault.
Volenti Non Fit Injuria (Consent)
This defence, which translates as ‘to a willing person, injury is not done’, is a complete defence. If successful, the claimant receives no damages. To establish volenti, the defendant must prove that the claimant had full knowledge of the nature and extent of the risk and voluntarily agreed to it. The agreement can be express or implied from conduct. Courts are reluctant to apply this defence, particularly in employment contexts where the employee's consent may not be truly voluntary. A clear example where the defence succeeded is Morris v Murray [1991] 2 QB 6, where the claimant accepted a lift in an aircraft from a pilot he knew was heavily drunk. The court held that the claimant had willingly accepted the risk of his friend's drunken negligence, and the defence of volenti was successful.
Illegality (Ex Turpi Causa Non Oritur Actio)
The defence of illegality, meaning ‘from a disgraceful cause, no action arises’, is a complete defence based on public policy. It prevents a claimant from succeeding if they suffered their injury whilst engaged in illegal activity. The modern approach was set out by the Supreme Court in Patel v Mirza [2016] UKSC 42, which requires the court to consider whether allowing the claim would damage the integrity of the legal system. The court will consider the underlying purpose of the rule that was broken and whether any other public policies would be affected by denying the claim. A clearer illustration can be found in Gray v Thames Trains Ltd [2009] UKHL 33. The claimant developed PTSD after being involved in a train crash caused by the defendant's negligence. As a result of this condition, he killed someone and was convicted of manslaughter. He tried to claim damages from the defendant for his loss of earnings while imprisoned. The House of Lords held that his claim was defeated by the illegality defence because his loss was a direct consequence of his own criminal act.
Conclusion
In summary, the tort of negligence provides a crucial framework for assigning responsibility for careless acts that cause harm. A claimant must navigate the three-stage process of proving a duty of care, a breach of that duty, and resulting damage that is not too remote. The principles established in Donoghue v Stevenson and developed in Caparo v Dickman continue to shape the boundaries of liability. However, the law also recognises that the defendant should not always bear the full burden. The defences of contributory negligence, which apportions loss, and the complete defences of volenti non fit injuria and illegality, ensure a degree of balance. These principles collectively allow the courts to deliver a just outcome by considering the conduct and responsibilities of both parties.
References
Cases
- Barnett v Chelsea & Kensington Hospital Management Committee [1969] 1 QB 428
- Blyth v Birmingham Waterworks Co (1856) 11 Exch 781
- Bolam v Friern Hospital Management Committee [1957] 1 WLR 582
- Bolton v Stone [1951] AC 850
- Caparo Industries plc v Dickman [1990] 2 AC 605
- Donoghue v Stevenson [1932] AC 562
- Froom v Butcher [1976] QB 286
- Gray v Thames Trains Ltd [2009] UKHL 33
- Latimer v AEC Ltd [1953] AC 643
- Morris v Murray [1991] 2 QB 6
- Paris v Stepney Borough Council [1951] AC 367
- Patel v Mirza [2016] UKSC 42
- The Wagon Mound (No 1) [1961] AC 388
Legislation
- Law Reform (Contributory Negligence) Act 1945
Books
- Horsey, K. and Rackley, E. (2021) Tort Law. 7th edn. Oxford University Press.
