Defences to Negligence & Vicarious liability.

Authors Avatar
Defences to Negligence & Vicarious liability.

Volenti: volenti non fit injuria

This is a total defence to a negligence claim.

However the rules to which apply are complex:

Knowledge of the risk:

In the late 19th Century, it was seen that if you had any knowledge of the risks that you were exposing yourself to, and did so voluntarily, then you could not make a claim. This changed over the years, with the idea being that where the negligence of the Defendant increased the more the Plaintiff must have given express clear assent to the assumption of that risk before the incident. Mere knowledge of the risk is not enough, there must be a clear waiver.

*Dann v Hamilton [1939] 1 KB 509

The Plaintiff accepted a lift from the Defendant knowing that he was very intoxicated. The Defendant crashed causing the Plaintiff a lot of damage. She was said to have given clear consent because the dangers were very obvious.

Smith v Baker

The employee must have had knowledge of the risk and have agreed to undertake this risk

NB: this is now tempered by UCTA.

*Morris v Murray [1991] 2 QB 6

The Plaintiff got into an aeroplane with the Defendant. The Defendant had consumed an exceptionally large quantity of alcohol. They died in the ensuing crash. It was decided that the risks had been glaring, and as such he had agreed to waiver his rights.

*Wooldrige v Sumner

The Press photographer should have accepted the fact that the Jockey would have been more intent upon winning and stabilising his horse than whether he was going to crash into the crowd. The Plaintiff accepted the risks, which were inherent.
Join now!


It has been shown that volenti is rarely used, it is usually contributory neg that will be used.

The authority marked * denotes that it was accepted as a case of implied assumption of the risk by conduct. Because of UCTA it is rare to find a case where it is a contractual acceptance of the risk. A good example would be an oil worker in the North Sea Oil Platforms. Are they really going accept a risk of negligence by their employer, even though the dangers and risks of worker there are glaring? No, it would ...

This is a preview of the whole essay