Three night-watchmen attended hospital after vomiting from drinking tea. The casualty officer refused to see them, advising they go home. Mr Barnett died hours later from arsenic poisoning. His widow's negligence claim failed as proper treatment would not have saved him, establishing the 'but for' test of causation.
Facts
On 1 January 1966, three night-watchmen from the Chelsea College of Science and Technology attended the emergency department of the hospital run by the Chelsea & Kensington Hospital Management Committee at approximately 8am. They had been vomiting since drinking tea at about 5am. The casualty officer, Dr Banerjee, did not examine them in person but instead advised the nurse over the telephone that the men should go home and call their own doctors. One of the men, Mr Barnett, died approximately five hours later from arsenic poisoning. Mrs Barnett, the widow, brought a claim in negligence against the hospital.
Issues
The central legal issue was whether the hospital’s breach of the duty of care was the cause of Mr Barnett’s death. Specifically, the court had to determine whether the defendant’s negligent failure to examine and treat Mr Barnett was a factual cause of his death.
Judgment
Nield J held that the hospital was not liable. The court found that although the hospital had breached its standard of care by failing to examine Mr Barnett, this breach was not a cause of his death. The evidence established that even if the hospital had admitted Mr Barnett and attempted treatment, there would have been little or no chance that the antidote for arsenic poisoning would have been administered in time to prevent his death.
A doctor’s refusal to treat a patient who appears before him after swallowing arsenic is not a cause of fact in the patient’s subsequent death if it is established that even proper treatment would not have saved him.
Legal Principles
The ‘But For’ Test
The case is a seminal authority on the test of factual causation in negligence, commonly known as the ‘but for’ test. This test requires the claimant to establish that ‘but for’ the defendant’s negligence, the claimant would not have suffered the loss complained of. In this case, even without the defendant’s negligence, Mr Barnett would still have died from the arsenic poisoning because medical intervention would have come too late.
Implications
This case demonstrates that establishing breach of duty alone is insufficient to succeed in a negligence claim; the claimant must also prove causation. The decision reinforces that defendants will not be held liable for losses that would have occurred regardless of their negligent conduct. The case remains a foundational authority in tort law on the requirement of factual causation and is frequently cited in medical negligence cases where the effectiveness of potential treatment is in question.
Verdict: The claim was dismissed. The hospital was held not liable as the breach of duty was not a cause of Mr Barnett’s death; he would have died even if proper treatment had been provided.
Source: Barnett v Chelsea and Kensington Hospital [1968] 2 WLR 422
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To cite this resource, please use the following reference:
National Case Law Archive, 'Barnett v Chelsea and Kensington Hospital [1968] 2 WLR 422' (LawCases.net, March 2026) <https://www.lawcases.net/cases/barnett-v-chelsea-and-kensington-hospital-1968-2-wlr-422/> accessed 22 April 2026
