negligence = failing to do something which the reasonable person would do or doing something which the reasonable person would not do (Blyth v Birmingham Waterworks)
introduced negligence - 'The Neighbour Principle' - you must take reasonable care not to injure your neighbour (Donoghue v Stevenson)
modern three part test to decide whether a duty of care exists in situations where there is not precedent of a duty of care (Caparo v Dickman)
three part test (Caparo v Dickman)
it was reasonablyforeseeable that a person in the claimants position would be injured
there was sufficient proximity between the parties
it is fair, just and reasonable to impose liability on the defendant
must be foreseeable that the claimant would suffer harm 'reasonably forseeable' (Kent v Griffiths)
must be sufficient proximity between the parties. time, space, relationship (Bourhill v Young)(McLoughlin v O'Brien)
must be fair, just and reasonable to impose duty of care (Hill v Chief Constable of West Yorkshire)
the Caparo test only needs to be applied in novel situations (Robinson v Chief Constable of West Yorkshire Police)