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KembaraXtra-Case Law-Kennedy (1998) CA - Causation in Manslaughter
Case Citation: Kennedy (1998) CA
Area of Law: Causation, Manslaughter, Novus Actus Interveniens
Facts:
  • Defendant (D) supplied heroin to Victim (V).
  • Victim (V) immediately self-injected the heroin and died as a result.
Legal Issue:
  • Whether the Defendant's act of supplying the heroin was a sufficient cause of death to establish manslaughter, given the Victim's voluntary act of self-injection.
Holding:
  • The Defendant (D) was guilty of manslaughter.
Reasoning (Per Waller LJ):
  • The critical question when the deceased performs an act causative of their own death is whether the Defendant can be said to be jointly responsible for the carrying out of that act.
  • The court considered the concept of novus actus interveniens, which refers to a new intervening act that breaks the chain of causation between the defendant's actions and the ultimate harm.
Key Principle:
  • When a victim self-administers a substance supplied by the defendant, the defendant can be held liable for manslaughter if they are deemed jointly responsible for the victim's act of self-administration.
Important Considerations:
  • The case grapples with the complexities of causation when the victim's own actions contribute to their death.
  • The concept of novus actus interveniens is relevant to determine if the victim's actions break the chain of causation originating from the defendant.
  • Joint Responsibility: The defendant does not have to be the sole cause of death, but their actions must have significantly contributed to the fatal outcome.
Study Notes:
  • Focus on understanding the concept of "joint responsibility" and how it applies when the victim performs the direct act causing their own death.
  • Consider the potential arguments for and against finding causation in such circumstances.
  • Relate this case to broader principles of causation in criminal law, particularly the requirements of factual and legal causation.



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