Contributory negligence of the drunk passenger

The Court of Appeal in London recently considered a particularly tragic set of circumstances: a passenger in a fatal road traffic accident (a) wasn't wearing a seat belt and (b) was aware that the driver was drunk.


The claimant had been in a nightclub with some friends in Cheltenham. In the small hours of the morning, a fatal road traffic collision occurred. The claimant's friend, who was driving a three-door Seat Ibiza, crossed onto the wrong side of the road and collided at high speed with a lorry travelling in the opposite direction. He died at the scene.

The claimant was a back seat passenger. He was not wearing a seat belt. His head collided with the back of the driver's seat, and he suffered "catastrophic brain damage".

Liability was accepted by the deceased driver's insurers. They contended, however, that the claimant damages should be reduced for contributory negligence.

At trial, the judge founds that, although the claimant was not wearing a seat belt, that had no causative effect, and he would have likely suffered the catastrophic head injuries regardless. However, based on the claimant's knowledge that the deceased had drunk too much to be fit to drive, contributory negligence was assessed at 20%.

The claimant appealed.


In the Court of Appeal, Lord Justice Dingemans observed that:

The test of whether a person has breached a duty of care in negligence is an objective standard. The standard normally set "is that of a reasonable and prudent man"… This is the objective standard applied to [the driver] when judging his driving of the Seat Ibiza motor car. [The insurer] would not have been able to defend these proceedings on the basis that [the driver] would not have crossed the road and driven into the oncoming lorry if he had not drunk so much alcohol (and did not attempt to do so).

He continued:

As a matter of principle, it is not obvious why a different standard should be applied to [the claimant] when assessing whether there was any contributory negligence on his part when he agreed to be driven…The fact that [the claimant] would not have agreed to be driven… if he had been sober does not assist him if an objective standard is applied.

Lord Justice Underhill agreed, adding:

It is clear that the law in this jurisdiction has come down against treating the fact that the claimant is drunk as a characteristic that can be taken into account in deciding whether he or she took reasonable care for their own safety.


The appeal was dismissed.

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