Facts of the Case
The facts of Caparo concerned a claim for pure economic loss resulting from reliance on information provided by company auditors. Specifically, the case addressed whether auditors, while potentially liable to existing shareholders for negligent auditing, owed a duty of care to those who were merely proposing to invest in the company. The House of Lords ultimately determined that no such duty was owed to prospective investors in this context.
The Judgment
The House of Lords sought to move away from the “presumption” of duty established in earlier cases like Donoghue v Stevenson and Anns v Merton London Borough Council, where foreseeability of damage alone was often enough to raise a prima facie duty of care. Instead, the court cast doubt on the very idea of a single universal test for all negligence situations.
Lord Bridge famously identified three “necessary ingredients” for a duty of care to exist:
- Reasonable Foreseeability: It must be reasonably foreseeable that the defendant’s failure to take care could cause damage to the claimant.
- Proximity: There must be a relationship between the parties characterised by the law as one of “proximity” or “neighbourhood”.
- Fair, Just, and Reasonable: The situation must be one in which the court considers it fair, just, and reasonable to impose a duty of a given scope.
Core Legal Principles and the “Caparo Test”
While later courts—and many textbooks—wrongly treated this passage as a new “three-stage test” to be applied to every negligence claim, the House of Lords actually intended to repudiate the idea of a single test.
- Proximity: This is described as a “slippery word” and a “convenient label” rather than a definable concept. It is shorthand for a relationship that makes it fair and reasonable to impose a duty.
- Policy Considerations: The “fair, just and reasonable” stage allows courts to weigh the public interest and the potential for “crushing” liability against the individual loss suffered by the claimant.
- The Incremental Approach: The “true message” of Caparo is that the law should develop incrementally and by analogy with established categories of negligence. Rather than applying a high-level test, courts should look at existing precedents to see if a duty has been found in similar factual circumstances.
Wider Context of the Time
Caparo represented a significant “rowing back” from the expansionary period of the 1970s and early 1980s. Under the previous Anns test, a duty of care was presumed if harm was foreseeable unless there were specific policy reasons to deny it. This had led to an unpopular expansion of negligence liability. Caparo shifted the burden, ensuring there is no presumption of duty; instead, the court must weigh all arguments for and against recognising a duty in balance.
The Caparo Approach: Evolution, Interpretation, and Application
The decision in **Caparo Industries plc v Dickman ** represents a pivotal shift in the law of negligence, primarily by moving away from the “prima facie” presumption of a duty of care that characterized the earlier Anns era. Rather than providing a rigid formula, the House of Lords intended to establish a more cautious, incremental method for determining the existence of a duty of care in “novel” cases.
1. The Three “Necessary Ingredients”
In his leading judgment, Lord Bridge identified three elements that must be considered before a duty of care is recognized:
- Reasonable Foreseeability: It must be foreseeable that the defendant’s failure to take care could cause damage to the claimant. While this was the sole requirement under the Anns test, Caparo establishes it as only the first hurdle.
- Proximity: There must be a relationship between the parties characterized by the law as one of “proximity” or “neighbourhood”.
- Fair, Just, and Reasonable: The court must consider whether it is fair, just, and reasonable to impose a duty of a given scope on the defendant for the benefit of the claimant.
2. The Misinterpretation of the “Three-Stage Test”
A common error among lawyers and lower courts following the decision was treating these three ingredients as a universal “three-stage test” to be applied to every negligence claim. The Supreme Court has recently sought to correct this, noting that Lord Bridge never intended to provide a “blueprint” or a single formula for all cases. Lord Oliver famously argued in Caparo itself that the search for a single test for liability is to “pursue a will-o’-the wisp” and that the law is better served by practicality and common sense.
3. Defining Proximity and Policy
The second and third stages of the Caparo approach are often described as “slippery” or lacking precise definition,:
- Proximity as a “Label”: The courts have clarified that “proximity” is not a definable concept in itself but a “convenient label” for a relationship that the court pragmatically concludes should give rise to a duty. It does not necessarily require physical closeness; rather, it describes the legal connection between the parties.
- The Public Interest: The “fair, just and reasonable” requirement allows judges to engage in a frank discussion of policy considerations. This involves weighing the “total detriment to the public interest” against the “total loss to all would-be [claimants]” if they are denied a cause of action. This stage acts as a control device to avoid “crushing” liability—where a defendant might be held liable for an indeterminate amount to an indeterminate class of people.
4. The Incremental Approach and Precedent
The “true message” of Caparo is the incremental approach, which encourages the law to develop by analogy with established categories of negligence. Instead of applying a high-level test, courts should look at existing case law and work outwards from those factual circumstances.
Modern authorities like **Robinson v Chief Constable of West Yorkshire ** emphasize that the Caparo inquiry is only necessary for novel cases where the law is not yet settled. In “ordinary” cases—such as disputes involving motorists and road users, or doctors and patients—the duty of care is already established by clear precedent, and there is no need to reconsider whether such a duty is “fair, just and reasonable”.
When to Use the Caparo Approach
The practical application of Caparo now follows a specific hierarchy,:
- Look to Precedent: If the situation is covered by an existing case (e.g., a doctor’s duty to a patient), that precedent is followed, and the Caparo stages are not revisited [8,,.
- Check Specific Rules: For certain types of harm, like pure psychiatric injury or pure economic loss, the courts use more specific, concrete principles developed in those particular areas rather than the general Caparo ingredients.
- Novel Cases Only: Only when the precedents provide no clear answer must the court use the incremental approach to determine if it is fair and reasonable to recognize a new duty. This is a “residual discretion” used in a small minority of cases,
Related and Subsequent Cases
- Anns v Merton London Borough Council : The case that Caparo effectively replaced. It had established a two-stage test that created a presumption of duty based on foreseeability.
- Murphy v Brentwood District Council : Formally overruled Anns shortly after the Caparo decision.
- Michael v Chief Constable of South Wales Police : The Supreme Court clarified that Lord Bridge’s speech in Caparo had been misinterpreted as a “blueprint” for deciding cases when it was meant to be the opposite.
- Robinson v Chief Constable of West Yorkshire : Lord Reed reaffirmed that the “Caparo test” does not apply to all claims. He stated that for established categories (like motorists or doctors), the duty is already settled by precedent. Recourse to the Caparo approach is only necessary in “novel” cases where no existing precedent provides an answer.
- Darnley v Croydon Health Services NHS Trust : An example where the Court of Appeal tried to apply a Caparo “fair, just and reasonable” analysis, but the Supreme Court ruled it was unnecessary because the case fell within an established category of duty (health care provider to patient).