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. To succeed in a negligence claim, a claimant must establish three key elements: that the defendant owed them a duty of care, that the defendant breached that duty, and that the breach caused the claimant to suffer damage. The first of these, the duty of care, functions as a crucial control mechanism, limiting the circumstances in which a person can be held legally responsible for the consequences of their actions. The concept used by the courts to determine its existence has not been static; it has evolved significantly over the last century. This essay will analyse the development of this concept, tracing its journey from a broad, principle-based test to the more structured and incremental approach used today. It will be argued that while the modern law prioritises certainty by relying on precedent, the core test for novel situations remains flexible, leaving room for judicial policy-making.
The Foundation: The Neighbour Principle
Prior to the 20th century, the law of negligence was a patchwork of specific situations where a duty of care was recognised, such as between a doctor and patient or an innkeeper and guest. There was no general principle that could be applied to new factual scenarios. This changed with the landmark House of Lords decision in Donoghue v Stevenson (1932). In this case, Mrs Donoghue became ill after consuming ginger beer from an opaque bottle that contained the decomposed remains of a snail. As she had not purchased the drink herself, she could not sue in contract. The question for the court was whether the manufacturer, Stevenson, owed her a duty of care in tort.
The majority found that a duty was owed. The most influential judgment was delivered by Lord Atkin, who formulated the famous ‘neighbour principle’. He stated, "You must take reasonable care to avoid acts or omissions which you can reasonably foresee would be likely to injure your neighbour" (Donoghue v Stevenson, 1932, p. 580). He then defined a ‘neighbour’ in law 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" (p. 580). This principle established, for the first time, a general test for determining the existence of a duty of care based on the reasonable foreseeability of harm. It provided a unifying concept that allowed the law to move beyond the old, rigid categories of liability and adapt to new situations as society developed.
The Expansionary Period: The Two-Stage Test
For several decades following Donoghue, the neighbour principle was applied by the courts, leading to a gradual expansion of negligence liability. This trend reached its high point in Anns v Merton London Borough Council (1978). The case concerned whether a local authority owed a duty of care to the subsequent purchasers of a property for failing to properly inspect the building’s foundations, which later proved to be defective.
Lord Wilberforce, seeking to rationalise the approach, set out a two-stage test. First, one had to ask whether there was a "sufficient relationship of proximity or neighbourhood" between the defendant and claimant, such that the defendant could reasonably foresee that carelessness on their part would be likely to cause damage to the claimant. If the answer was yes, a prima facie (presumed) duty of care arose. The second stage was then to consider whether there were any "considerations which ought to negative, or to reduce or limit the scope of the duty" (p. 752). This second stage allowed for policy arguments to be used to deny a duty, but the burden was on the defendant to show why a duty that was foreseeable should not be imposed. The Anns test was seen as highly expansionary, as it made it much easier to establish a duty of care, particularly against public bodies, and led to what was later described by judges as an "unstoppable tide" of liability (Horsey and Rackley, 2021).
The Retreat from Anns: The Caparo Three-Stage Test
The expansion of liability following Anns caused concern within the judiciary and legal community. It was felt that the two-stage test was too generous to claimants and could lead to indeterminate liability, the so-called ‘floodgates’ problem. The courts began a gradual retreat, culminating in the House of Lords decision in Caparo Industries plc v Dickman (1990), which formally overruled Anns. The case involved a claim by an investor who had purchased shares in a company in reliance on an audit report prepared by the defendants. The report was inaccurate and the claimant suffered a financial loss.
The House of Lords held that the auditors did not owe a duty of care to potential investors. In his leading judgment, Lord Bridge of Harwich set out a new, three-stage approach for determining duty of care in novel situations. He stated that in addition to the foreseeability of harm, it was necessary to establish two further elements:
- A relationship of ‘proximity’ or neighbourhood between the parties.
- That the situation was one in which the court considered it ‘fair, just and reasonable’ to impose a duty of care (Caparo Industries plc v Dickman, 1990, p. 618).
This test marked a significant change from Anns. Crucially, there was no longer a presumption of a duty of care. Instead, the claimant had to satisfy all three stages. The concept of 'proximity' was used to describe a closer connection than mere foreseeability, while the ‘fair, just and reasonable’ requirement explicitly acknowledged the role of public policy in the decision-making process. Lord Bridge also emphasised that the law should develop "incrementally and by analogy with established categories" (p. 618). This signalled a clear preference for caution and certainty over the broad application of principle seen in the Anns era. The Caparo test became the dominant framework for analysing duty of care for the next three decades.
The Modern Approach: A Return to Precedent
While the Caparo test provided a more structured approach, its application was not always consistent, particularly the vague nature of the 'fair, just and reasonable' limb. A common misunderstanding was that the three-stage test should be applied in every case to decide if a duty existed. The Supreme Court sought to clarify the correct methodology in Robinson v Chief Constable of West Yorkshire Police (2018). The case involved an elderly woman who was knocked over and injured by police officers attempting to arrest a suspected drug dealer. She argued the police owed her a duty of care.
Lord Reed, giving the lead judgment, explained that it was a mistake to think that the Caparo test was the standard test for all cases. He clarified that in ordinary negligence cases, the courts should not start with the three-stage test. The correct approach is as follows:
- Where the existence of a duty of care in a particular situation has already been established by the courts, the court should simply follow the precedent.
- It is only in novel cases, where there is no clear precedent, that the court needs to consider extending the law. In these situations, the court should use the Caparo factors as a guide, developing the law "incrementally and by analogy with established authority" (Robinson v Chief Constable of West Yorkshire Police, 2018, para 29).
The Supreme Court in Robinson confirmed that the police, like ordinary citizens, owe a duty of care not to cause foreseeable personal injury through their positive actions. Since this was an established principle, it was not necessary to apply the Caparo test. This judgment reasserted the importance of precedent and the incremental nature of the common law. The Caparo test is therefore not a universal tool, but a specific instrument for use in new and difficult cases.
Conclusion
The concept used by the courts to determine the existence of a duty of care has undergone a significant evolution, reflecting a continuous tension between the need for legal principle and the desire for certainty and control over liability. The journey began with Lord Atkin's broad ‘neighbour principle’ in Donoghue v Stevenson, which provided a moral and legal foundation for modern negligence. This was pushed to its logical extreme in the Anns era, creating a presumption of duty based on foreseeability, but this led to concerns about overly expansive liability. The subsequent retreat in Caparo v Dickman introduced a more restrictive three-stage test, re-emphasising proximity and introducing an explicit policy consideration through the 'fair, just and reasonable' criterion. The modern position, as clarified in Robinson, is one that prioritises precedent and the incremental development of the law. The Caparo test remains important, but its role is confined to novel situations where the courts must decide whether to create a new duty of care. This approach seeks to provide a balance: it promotes certainty in established areas of law while retaining a structured, yet flexible, framework for addressing the new challenges that inevitably arise.
References
Anns v Merton London Borough Council [1978] AC 728.
Caparo Industries plc v Dickman [1990] 2 AC 605.
Donoghue v Stevenson [1932] AC 562.
Horsey, K. and Rackley, E. (2021) Tort Law. 7th edn. Oxford University Press.
Robinson v Chief Constable of West Yorkshire Police [2018] UKSC 4.
