Introduction to Tort Law: Rules and Theory
Welcome to your comprehensive study guide for The Rules and Theory of Tort Law for AQA A Level Law (Paper 2). If you ever wondered what happens when someone causes you harm, damages your property, or ruins your peaceful afternoon through carelessness, you are in the right place! The word tort comes from the Norman French word for "wrong". In civil law, a tort is a civil wrong committed by one person against another, where the injured party seeks a remedy (usually financial compensation) from the wrongdoer.
Don't worry if this area of law feels vast at first. We will break down every essential topic into simple, digestible steps, explore the key cases you must cite, and unpack the underlying theories and policy decisions the courts use to decide who pays when things go wrong.
Top Exam Tip to Start: Always remember the distinction between damage (the physical injury, loss, or property destruction suffered) and damages (the sum of money awarded by the court as compensation). Mixing these two up is one of the most common pitfalls flagged by AQA examiners!
---1. Negligence: The Core Framework
Negligence is by far the most frequently examined tort. To succeed in an action for negligence, a claimant must prove three distinct elements on the balance of probabilities:
1. Duty of Care: The defendant owed the claimant a legal obligation to take care.
2. Breach of Duty: The defendant failed to reach the required legal standard of care.
3. Damage: The defendant's breach caused the claimant's injury or loss, and the harm was not too remote.
A. Duty of Care
Historically, Lord Atkin established the foundational "Neighbour Principle" in the landmark case of Donoghue v Stevenson: you must take reasonable care to avoid acts or omissions that you can reasonably foresee would be likely to injure your "neighbour" (anyone closely and directly affected by your actions).
In modern law, when courts face a novel situation where no prior precedent exists, they apply the Caparo three-part test from Caparo Industries plc v Dickman:
• 1. Reasonably Foreseeable: Would a reasonable person have foreseen that the defendant's actions could cause harm to someone in the claimant's position?
• 2. Proximity: Is there a sufficiently close relationship between the claimant and defendant (in time, space, or legal relationship)?
• 3. Fair, Just, and Reasonable: Is it socially desirable and legally sound to impose liability, or would it lead to negative policy outcomes?
Crucial Examiner Warning: Do NOT apply the three-stage Caparo test if there is already an established duty of care! Precedents already establish duties between drivers and pedestrians, doctors and patients, and employers and employees. You only invoke the full Caparo test for novel (new/untested) factual situations.
B. Breach of Duty
Once a duty is established, did the defendant breach it? The baseline rule comes from Blyth v Birmingham Waterworks: negligence is the omission to do something which a reasonable person would do, or doing something which a prudent and reasonable person would not do. This is an objective test.
The standard of the "reasonable person" adjusts depending on specific categories of defendants:
• Learners and Trainees: Learners are judged against the standard of a reasonably competent, qualified person. In Nettleship v Weston, a learner driver was held to the same standard as an experienced, competent driver. Inexperience is no excuse.
• Professionals: A professional is judged by the standard of a reasonably competent member of that profession. Under the Bolam test (Bolam v Friern Hospital Management Committee), a professional is not in breach if their actions accord with a practice accepted as proper by a responsible body of professional opinion.
• Children: A child defendant is judged against the objective standard of a reasonable child of the same age (Mullin v Richards).
C. Damage: Causation and Remoteness
Proving a breach is not enough; the claimant must prove that the breach caused the harm and that the law recognizes the loss as compensable.
• Factual Causation (The "But For" Test): The claimant must show that "but for" the defendant's negligence, the damage would not have occurred. In Barnett v Chelsea & Kensington Hospital Management Committee, the doctor breached his duty by failing to examine a patient suffering from arsenic poisoning. However, because the patient would have died anyway even with prompt treatment, factual causation failed.
• Legal Causation (Remoteness of Damage): The consequence must not be too remote. As established in The Wagon Mound (No. 1), the type or kind of harm suffered must be reasonably foreseeable to a reasonable person at the time of the breach.
• The "Thin Skull" Rule: You must take your victim as you find them. If the type of harm is foreseeable, the defendant is liable for the full extent of the physical consequences, even if the victim had a pre-existing vulnerability (Smith v Leech Brain).
Section Key Takeaways: Negligence requires Duty, Breach, and Damage. Standard is objective (reasonable person). Causation requires both factual proof ("but for") and legal proximity (not too remote under The Wagon Mound).
---2. Special Liability Categories
A. Psychiatric Injury (Pure Nervous Shock)
The law treats pure psychiatric harm more strictly than physical injury. The claimant must suffer from a recognized psychiatric condition (such as clinically diagnosed depression or PTSD), not merely temporary grief, distress, or upset.
Claimants are divided into two distinct groups:
• Primary Victims: Individuals who were physically involved in the incident and within the immediate "zone of physical danger".
• Secondary Victims: Individuals who were not in the zone of danger but witnessed the traumatic event happening to someone else.
To succeed, a Secondary Victim must satisfy all three strict criteria established in Alcock v Chief Constable of South Yorkshire Police:
• 1. Close tie of love and affection with the immediate victim (presumed between spouses/parents and children; must be proven in other relationships).
• 2. Proximity in time and space to the accident or its immediate aftermath.
• 3. Perception through own unaided senses (seeing or hearing the event directly, not hearing about it through a third party or watching a broadcast).
B. Pure Economic Loss
Pure economic loss refers to financial loss that is independent of any physical injury or property damage.
• Negligent Acts: As a general rule, pure economic loss caused by a negligent act is not recoverable (Spartan Steel & Alloys Ltd v Martin & Co). The law restricts claims to prevent overwhelming liability for purely financial domino effects.
• Negligent Misstatement: Exceptionally, pure economic loss can be recovered if it results from a negligent statement where a "special relationship" of trust and reliance exists, and the advice was reasonably relied upon (Hedley Byrne & Co Ltd v Heller & Partners Ltd).
C. Occupiers' Liability
An occupier (someone with control over premises) owes statutory duties of care to people entering their land:
• Lawful Visitors (Occupiers' Liability Act 1957): The occupier owes a common duty of care to see that the visitor will be reasonably safe in using the premises for the purpose for which they were invited or permitted to be there.
• Trespassers (Occupiers' Liability Act 1984): A trespasser enters without permission. The occupier only owes a duty regarding personal injury (not property damage) if three conditions are met: (1) the occupier knows or has reasonable grounds to believe the danger exists; (2) the occupier knows or has reasonable grounds to believe the trespasser is in the vicinity or may come into the vicinity of the danger; and (3) the risk is one against which the occupier may reasonably be expected to offer protection.
Section Key Takeaways: Psychiatric claims require a recognized condition; secondary victims must meet the strict Alcock hurdles. Pure economic loss is barred for acts (Spartan Steel) but permitted for misstatements under Hedley Byrne. The 1957 Act protects lawful visitors; the 1984 Act provides limited safety protection to trespassers.
---3. Other Key Torts in the Specification
A. Vicarious Liability
Vicarious liability is a form of secondary liability where an employer is held strictly liable for the tort committed by an employee. For vicarious liability to apply, two core requirements must be met:
1. There must be an employer-employee relationship (or a relationship akin to employment).
2. The employee must have committed the tort in the course of employment (i.e. doing an authorized act, or doing an authorized act in an unauthorized or wrongful manner).
B. Private Nuisance
Private nuisance protects a person's right to the peaceful use and enjoyment of their land. It is defined as an unlawful (unreasonable) interference with a person's use or enjoyment of land, or some right over or in connection with it.
The interference must be unreasonable. Courts balance competing interests using several key factors:
• Locality: The character of the neighbourhood (industrial, residential, or rural).
• Duration and Intensity: How long, how often, and at what time of day the interference occurs.
• Malice: Deliberately spiteful or malicious behavior by the defendant will almost always render the interference unreasonable.
C. Strict Liability: The Rule in Rylands v Fletcher
Under the rule in Rylands v Fletcher, a defendant is held strictly liable (liable even without proof of fault or negligence) if:
1. The defendant brings onto their land, and keeps there, something likely to do mischief if it escapes;
2. This represents a non-natural use of the land (an extraordinary or non-ordinary use);
3. The thing actually escapes from the defendant's property; and
4. It causes foreseeable damage to adjoining property.
Section Key Takeaways: Vicarious liability requires an employment relationship and a tort committed in the course of employment. Private nuisance centers on unreasonable interference with land rights. Rylands v Fletcher creates strict liability for the escape of a dangerous thing during non-natural land use.
---4. The Theory of Tort Law: Evaluation & Policy
In Paper 2, higher-level marks depend on your ability to evaluate the rules of tort law and discuss the social policies that shape judicial decision-making. Why do judges allow some claims and block others?
A. Policy Considerations: The "LFP" Framework
Remember the mnemonic L-F-P to organize policy discussions in your essays:
1. Loss Allocation (L)
The law often asks: Who is in the best position to bear or distribute the financial loss?
• Through mechanisms like compulsory third-party motor insurance and employer's liability insurance, the financial burden of an accident is spread across policyholders or absorbed by large corporations with "deep pockets", rather than crushing an individual victim or an individual worker.
2. Floodgates Argument (F)
Judges are wary of making decisions that could "open the floodgates" to an unmanageable volume of litigation. This policy is particularly influential in:
• Restricting secondary victim claims for psychiatric injury (using the strict Alcock filters).
• Restricting claims for pure economic loss (excluding negligent acts under Spartan Steel).
• The fear is that recognizing broad liability would overwhelm the court system and paralyze commercial activity.
3. Practical Impact & Defensive Practices (P)
Courts examine how a finding of liability will affect public services, emergency responders, and essential institutions. If a blanket duty of care were imposed on public bodies, they might adopt expensive "defensive practices" (e.g. diverting limited public funds from frontline care to defensive paperwork and legal reserves to ward off potential lawsuits).
B. Fault-Based Liability vs. Strict Liability & No-Fault Systems
English tort law is predominantly a fault-based system. With exceptions like Rylands v Fletcher and vicarious liability, a claimant must prove that the defendant acted carelessly (negligence) or intentionally.
Critique of the Fault-Based System:
• The "Compensation Lottery": An injured person receives full compensation if they can identify a solvent, at-fault defendant, but receives nothing from tort law if injured in an unavoidable accident, by an untraceable person, or by natural causes.
• High Costs and Delay: Proving fault requires expert witnesses, lengthy investigations, and substantial legal fees, often taking years to resolve.
• Alternative Model (The "No-Fault" Scheme): Jurisdictions such as New Zealand operate comprehensive state-run "no-fault" compensation schemes. In New Zealand, victims of accidents receive prompt medical treatment and rehabilitation funded through state levies without needing to prove who was at fault in court, virtually eliminating personal injury tort claims.
Section Key Takeaways: Tort decisions are shaped by policy considerations—Loss allocation, the Floodgates principle, and the Practical impact on public services (LFP). The fault-based nature of English tort law is criticized for creating a compensation lottery with high legal costs, contrasting with no-fault schemes like New Zealand's.
---5. Quick Summary & Exam Checklist
Use this rapid checklist when revising your Paper 2 Tort scenarios and essays:
• Duty: Is there an existing precedent? If novel, apply Caparo (Foreseeability, Proximity, Fair/Just/Reasonable).
• Breach: Objective reasonable person test (Blyth). Adjust for learners (Nettleship), professionals (Bolam), or children (Mullin).
• Damage: Factual causation ("but for" in Barnett), legal remoteness (The Wagon Mound), and thin skull rule (Smith v Leech Brain).
• Special Torts: Check specific tests for Psychiatric Harm (Alcock), Economic Loss (Spartan Steel / Hedley Byrne), Occupiers' Liability (1957 vs 1984 Acts), Vicarious Liability, Nuisance, and Rylands v Fletcher.
• Theory: Always evaluate fault, compensation lottery, insurance/loss allocation, floodgates, and practical defensive impact.