What principle established in Donoghue v Stevenson (1932) states that a person owes a duty of care to those closely affected by their actions or omissions?

The principle established in Donoghue v Stevenson (1932) that states a person owes a duty of care to those closely affected by their actions or omissions is known as the Neighbour Principle. This foundational concept in tort law arises from Lord Atkin's judgment, which posits that individuals must take reasonable care to avoid acts or omissions that could foreseeably cause harm to others who are closely and directly affected by their actions.

The term "neighbour" in this context extends beyond just physical proximity; it encompasses anyone who could be impacted by one's actions, thereby creating a responsibility to consider the potential consequences of those actions. This principle set a precedent for establishing duty of care in various contexts, influencing the development of negligence law. The Neighbour Principle thus underlines the importance of recognizing and respecting the impact our actions can have on those around us.