Intervening cause

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In tort law, an intervening cause is an event that occurs after a tortfeasor's initial act of negligence and causes injury/harm to a victim. An intervening cause will generally absolve the tortfeasor of liability for the victim's injury only if the event is deemed a superseding cause. A superseding cause is an unforeseeable intervening cause. By contrast, a foreseeable intervening cause typically does not break the chain of causality, meaning that the tortfeasor is still responsible for the victim's injury—unless the event leads to an unforeseeable result.

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For example (as in the US case of Watson v. Kentucky & Indiana Bridge & Railroad Co.), if a defendant had carelessly spilled gasoline near a pile of cigarette butts in an alley behind a bar, the fact that a bar patron later carelessly threw a cigarette butt into the gasoline would be deemed a foreseeable intervening cause, and would not absolve the defendant of tort liability. However, if the bar patron intentionally threw the cigarette butt into the gasoline because he wanted to see it ignite, this intentional act would likely be deemed unforeseeable, and therefore superseding. [1]

In order for the intervening cause to be deemed superseding and relieve the tortfeasor of liability, both the act/event and the injury must be unforeseeable. For example, assume that contractor A was responsible for fencing or marking a hole in the ground and negligently fails to do so while contractor B is working in the hole. Then, a driver—who negligently failed to take his medication before driving and therefore does not see clearly—drives into the unmarked hole and injures contractor B. Contractor A will still be liable for the damage to contractor B despite the driver's negligence in not taking medication. This is because, even though the negligent act of the driver is not foreseeable, the fact of injury by a driver is foreseeable (i.e., a car falling in because there is no guard). [2]

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The eggshell rule is a well-established legal doctrine in common law, used in some tort law systems, with a similar doctrine applicable to criminal law. The rule states that, in a tort case, the unexpected frailty of the injured person is not a valid defense to the seriousness of any injury caused to them.

The civil liability of a recreational diver may include a duty of care to another diver during a dive. Breach of this duty that is a proximate cause of injury or loss to the other diver may lead to civil litigation for damages in compensation for the injury or loss suffered.

<i>Chapman v Hearse</i>

Chapman v Hearse is a significant case in common law related to duty of care, reasonable foreseeability and novus actus interveniens within the tort of negligence. The case concerned three parties; Chapman who drove negligently, Dr Cherry who assisted him on the side of the road, and Hearse who, in driving negligently, killed Dr Cherry while he was assisting Chapman. In the Supreme Court of South Australia, Hearse was found liable for damages to Dr Cherry's estate under the Wrongs Act 1936. Hearse sought to reclaim damages from Chapman due to his alleged contributory negligence; Chapman was found liable to one quarter of the damages. Chapman appealed the case to the High Court of Australia on August 8, 1961 but it was dismissed as the results of his negligence were deemed reasonably foreseeable. A duty of care was established between Chapman and the deceased and his claim of novus actus interveniens was rejected. Dr Cherry was considered a ‘rescuer’ and his respective rights remained.

References

  1. Watson v. Kentucky & Indiana Bridge & Railroad Co., 137 Ky. 619, 126 S.W. 146 (1910), 18 March 1910, accessed 21 November 2020
  2. Derdiarian v. Felix Contracting Corp., 51 N.Y.2d 308, 434 N.Y.S.2d 166 (NY Ct App, 1980); McCoy v. American Suzuki Motor Corp., 136 Wash.2d 350, 961 P.2d 952 (Sup Ct. Wash 1998)