This was narrowed in Caparo v Dickman where a three part test must be satisfied: was there foreseeability of harm, proximity between the D and V and the policy test of whether it is fair, just and reasonable to impose a duty of care. However, the Supreme Court in the recent case of Robinson established two ways of deciding if a duty of care exists: if the case deals with an existing duty of care there is no need to look at the 3 part test from Caparo v Dickman. But, if it's a novel case then Caparo v Dickman can be used to guide the court.