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September 22, 2025

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National Case Law Archive

Home Office v Dorset Yacht Co Ltd [1970] UKHL 2 (06 May 1970)

Reviewed by Jennifer Wiss-Carline, Solicitor

Case details

  • Year: 1970
  • Volume: 1970
  • Law report series: AC
  • Page number: 1004

Seven Borstal trainees escaped from Brownsea Island while officers slept, damaging the respondent's yacht during their escape. The House of Lords held that Borstal officers owed a duty of care to nearby property owners to prevent foreseeable damage by trainees, establishing liability where officers acted outside their instructions.

Facts

On 21st September 1962, seven Borstal trainees were working on Brownsea Island in Poole Harbour under the supervision of three Borstal officers. During the night, the seven trainees escaped while the officers were asleep. The trainees boarded a nearby yacht and caused it to collide with the respondent’s yacht, causing substantial damage. All seven trainees had criminal records including convictions for breaking and entering, larceny, and taking vehicles without consent. Five had previous records of escaping from Borstal institutions. The respondent yacht company sued the Home Office for damages.

Issues

The preliminary issue was whether, on the facts pleaded in the Statement of Claim, the Home Office or its officers owed any duty of care to the respondents capable of giving rise to liability in damages with respect to the detention or supervision of persons undergoing Borstal training.

Key Arguments

The Home Office argued: (1) there was virtually no authority for imposing such a duty; (2) no person can be liable for wrongs done by another of full age and capacity who is not their servant; and (3) public policy required immunity from such liability to avoid inhibiting the rehabilitation-focused Borstal system.

The respondents relied upon the principle in Donoghue v Stevenson that one must take reasonable care to avoid acts or omissions which could reasonably be foreseen as likely to injure one’s neighbour.

Judgment

The House of Lords dismissed the appeal by a 4-1 majority (Viscount Dilhorne dissenting). The Law Lords held that a duty of care existed in the circumstances pleaded.

Lord Reid

Lord Reid emphasised that the law of negligence depends on principle rather than being confined to categories established by prior authority. He held that the Donoghue v Stevenson principle should apply unless there is justification for its exclusion. On causation, Lord Reid held that where human action forms a link in the chain between the defendant’s wrongdoing and the plaintiff’s loss, that action must have been something very likely to happen if it is not to break the chain of causation. The taking of a boat by escaping trainees and their unskilful navigation leading to damage was the very kind of thing the officers ought to have foreseen as likely.

On statutory duties, Lord Reid stated that Parliament cannot be supposed to have licensed those exercising statutory duties to act negligently in disregard of others’ interests. Where discretion exists, liability may arise if the discretion is exercised so carelessly or unreasonably that there has been no real exercise of the discretion Parliament conferred.

Lord Morris of Borth-y-Gest

Lord Morris held that the officers must have appreciated that the boys might interfere with nearby yachts with consequent likelihood of injury. The principle in Lord Atkin’s speech in Donoghue v Stevenson was directly applicable. The feature that the officers had a right to exercise control over the boys made this case analogous to cases where a duty situation had been found to exist.

Lord Pearson

Lord Pearson held that prima facie, the plaintiffs as boatowners were in law neighbours of the defendants, and so there was a duty of care. The case fell under the exception rather than the general rule that one man is under no duty of controlling another to prevent his doing damage to a third, because there was a special relation – the Borstal boys were under the defendants’ control, and control imports responsibility.

Lord Diplock

Lord Diplock provided a detailed analysis distinguishing between acts done in pursuance of instructions (protected by the public law doctrine of intra vires) and acts done contrary to instructions. He held that liability could arise where officers acted outside any discretion delegated to them and disregarded their instructions. The duty was owed to persons whose property was exposed to an exceptional added risk by the custodial system adopted.

Viscount Dilhorne (dissenting)

Viscount Dilhorne would have allowed the appeal, holding that no such duty existed under the common law. The absence of authority demonstrated that no such duty had been recognised, and creating one was a matter for Parliament rather than the courts.

Implications

This case significantly extended the scope of the duty of care in negligence. It established that those with control over others may owe duties to third parties to prevent foreseeable harm. The case confirmed that Donoghue v Stevenson principles can apply to novel situations where proximity and foreseeability exist. It also clarified the relationship between statutory powers and common law duties, holding that statutory authority does not provide immunity for negligent acts. The decision has been influential in developing the law on liability for the acts of third parties and on the liability of public authorities exercising statutory functions.

Verdict: Appeal dismissed by a 4-1 majority. The House of Lords held that the Home Office and its officers did owe a duty of care to the respondents capable of giving rise to liability in damages.

Source: Home Office v Dorset Yacht Co Ltd [1970] UKHL 2 (06 May 1970)

Cite this work:

To cite this resource, please use the following reference:

National Case Law Archive, 'Home Office v Dorset Yacht Co Ltd [1970] UKHL 2 (06 May 1970)' (LawCases.net, September 2025) <https://www.lawcases.net/cases/home-office-v-dorset-yacht-co-ltd-1970-ukhl-2-06-may-1970/> accessed 29 April 2026

Status: Positive Treatment

Home Office v Dorset Yacht Co Ltd remains good law and is a leading authority on the duty of care owed by public authorities and the liability for acts of third parties in negligence. The case established that the Home Office owed a duty of care to persons whose property was at risk from Borstal trainees. While subsequent cases such as Caparo Industries plc v Dickman [1990] have refined the test for duty of care, and cases like Michael v Chief Constable of South Wales Police [2015] have addressed public authority liability, Dorset Yacht has not been overruled and continues to be cited as authoritative on proximity and foreseeability principles in negligence law.

Checked: 20-03-2026