Angus Moon KC wins illegality case in the Supreme Court
21st January 2026
Angus Moon KC has won an appeal to the Supreme Court in a judgment handed down on 21st January 2026. Angus was instructed for the first appellant in Lewis-Ranwell v G4S & ors. The case involved a clinical negligence claim by the killer of 3 elderly men who was later found not guilty by reason of insanity. The appellants argued that his claim in negligence was barred by the doctrine of illegality.
The Claimant, Mr Lewis-Ranwell, defeated the argument of illegality at first instance and in the Court of Appeal. Angus was brought in for the appeal to the Supreme Court, having not appeared below. The appeal to the Supreme Court has been successful.
The case has widespread ramifications for the NHS, police forces and other public authorities sued by killers.
For a copy of the judgment, please click here.
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