4.1Negligence: Definition and nature#
In brief
Negligence has two senses: (i) a mental state (carelessness) and (ii) an independent tort (breach of a legal duty to take care resulting in damage).
- mental state
- tort
Negligence has two senses: (i) a mental state (carelessness) and (ii) an independent tort (breach of a legal duty to take care resulting in damage). The classic definition is by Alderson B in Blyth v Birmingham Waterworks Co (1856): negligence is the omission to do something which a reasonable man, guided by considerations which ordinarily regulate human affairs, would do, or doing something which a prudent and reasonable man would not do. Winfield defines it as the breach of a legal duty to take care which results in damage, undesired by the defendant, to the plaintiff.