Facts
- The defendant (D) assaulted his former partner (V) by pouring acid onto V’s face, causing severe permanent injuries and psychological distress.
- As a result of these injuries, V travelled to Belgium where he encountered further medical issues and chose to undergo legally sanctioned euthanasia administered by a doctor.
- D was prosecuted for murder and other offences following V’s death via euthanasia.
- D’s counsel argued that the lawful euthanasia constituted a novus actus interveniens (new intervening act) that broke the causal chain, thus negating liability for murder.
- The Crown Court accepted this argument and withdrew the murder charge from the jury.
- The prosecution appealed the decision.
Issues
- Whether the victim’s act of seeking and undergoing euthanasia constituted a novus actus interveniens that broke the chain of causation between the defendant’s actions and the victim’s death.
- Whether the acts of the victim and Belgian doctor were truly independent and voluntary so as to sever the defendant’s legal responsibility.
- What standard should be applied in evaluating causation: whether the defendant’s act must be a ‘substantial’ or ‘significant’ contributing factor to the result.
- How established principles from previous authorities, such as Dear, should inform the determination of causation in cases involving victim-initiated acts resulting in death.
Decision
- The Court of Appeal held that the acts of seeking and administering euthanasia were not independent, genuinely voluntary acts sufficient to break the chain of causation.
- It determined that the victim’s request for euthanasia and the doctor’s conduct were direct responses to the defendant’s original assault, not acts of ‘free and unfettered volition’.
- The Court rejected a strict philosophical approach to causation, emphasizing a common sense evaluation under the circumstances.
- It clarified that an intervening act will only break causation if it is independent and not a reasonably foreseeable consequence of the original conduct.
- The Court replaced the requirement that the defendant’s acts be a ‘substantial’ cause of death with the requirement that they be a ‘significant’ factor.
- The Court relied on the decision in Dear to support liability where the victim’s response, even if fatal, resulted from the injuries inflicted by the defendant.
- The appeal was allowed, setting aside the earlier decision to withdraw the murder charge from the jury.
Legal Principles
- The chain of causation remains intact unless an intervening act is truly independent, voluntary, and not a foreseeable consequence of the defendant’s original conduct.
- For an act to be a novus actus interveniens, it must result from ‘free and unfettered volition’.
- The definition of legal causation is clarified: the defendant’s act need only be a ‘significant’ contributing factor, not necessarily the predominant or sole cause.
- The approach to causation should apply common sense to all the circumstances rather than rely on abstract, philosophical distinctions.
- The precedent established in Dear confirms that a victim’s action following severe injury does not automatically exclude liability if that action is a direct response to the harm caused.
Conclusion
The Court of Appeal in R v Wallace [2018] EWCA Crim 690 clarified the law of causation in criminal offences, holding that a victim’s actions do not break the chain of causation if they are direct, foreseeable responses to the defendant’s conduct and affirming that legal responsibility attaches where the original act is a significant factor contributing to the outcome.