Supreme Court dismisses negligence claim against Thames Valley Police over fatal black-ice crash

The UK Supreme Court has unanimously dismissed an appeal in Tindall and another v Chief Constable of Thames Valley Police, holding that police officers who attended an earlier collision on an icy road did not owe a duty of care to motorists later killed at the same location. The judgment brings to a close a long-running claim brought by the widow of Malcolm Tindall following a fatal crash on the A413 in Buckinghamshire.

The events on the A413

According to the account before the court, two separate collisions occurred on black ice on the morning of 4 March 2014. In the first, Martin Kendall's vehicle overturned at around 4.30am. Police attended roughly 20 minutes later, placed warning signage, cleared debris from the carriageway and requested assistance with gritting. Officers subsequently removed the warning sign before leaving the scene. Approximately one hour after the first accident, a second vehicle lost control on the same stretch of road. Malcolm Tindall and another driver were killed in the resulting head-on collision.

The negligence claim

The claim was advanced by Mr Tindall's widow against the Chief Constable of Thames Valley Police. It was alleged that officers had acted negligently, either by making the existing danger worse or by assuming responsibility for road safety at the scene before departing. On this argument, the removal of warning signage and the officers' handling of the hazard were said to have left later road users exposed to a risk that had, at least temporarily, been signposted.

The defendant disputed that any duty of care was owed. The central legal question was whether the police, having attended the scene, had done anything that either created or increased the danger, or had taken on a responsibility towards other motorists that the law would recognise and enforce.

The Supreme Court's reasoning

The Supreme Court unanimously dismissed the appeal, concluding that Thames Valley Police did not owe a duty of care to the later victims and were therefore not liable in negligence. The court's reasoning is reported to have turned on an "interference principle": liability may arise where emergency responders foreseeably disrupt an existing rescue or warning effort and thereby leave others worse off than they would otherwise have been. On the facts as presented, the court did not consider that the officers' conduct met that threshold.

The distinction drawn is a familiar but demanding one in English law. A public authority that merely fails to confer a benefit, or fails to protect an individual from harm caused by a third party or by natural conditions, will not ordinarily be liable. Liability is more readily established where a defendant has, by its own positive acts, made a situation worse.

Wider implications

The decision reinforces the long-standing reluctance of the courts to impose broad affirmative duties on the police and other emergency services in the exercise of their operational functions. For public bodies, it offers a measure of reassurance that attending a hazard does not, without more, convert into an enforceable obligation to guarantee the safety of everyone who later uses the road. For claimants, it underlines how narrow the "interference" route to liability remains, and how much turns on evidence that a responder's positive conduct left others demonstrably worse off. The ruling is likely to be cited in future disputes at the boundary between operational discretion and actionable negligence.