Acquitted but Denied: Insanity, Illegality and the Supreme Court in Lewis-Ranwell

Laleng, Per C (2026) Acquitted but Denied: Insanity, Illegality and the Supreme Court in Lewis-Ranwell. . University of Kent Countercurrents: Critical Law at Kent. (KAR id:114176)

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Official URL: https://blogs.kent.ac.uk/countercurrents/2026/04/1...

Abstract

This blog post analyses the threshold question for the application of the illegality defence in the tort of negligence in cases involving insanity as laid down by the Supreme Court in Lewis-Ranwell (Respondent) v G4S Health Services (UK) Ltd and others (Appellants) [2026] UKSC 2.

Item Type:	Internet publication
Uncontrolled keywords:	illegality defence, ex turpi causa, Lewis-Ranwell, insanity, Patel v Mirza, public interest, criminal responsibility, moral culpability, policy reasoning, legal coherence
Subjects:	K Law > K Law (General) K Law > KD England and Wales
Institutional Unit:	Schools > Kent Law School
Former Institutional Unit:	There are no former institutional units.
Funders:	University of Kent (https://ror.org/00xkeyj56)
Depositing User:	Per Laleng
Date Deposited:	29 Apr 2026 15:54 UTC
Last Modified:	21 May 2026 08:52 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/114176 (The current URI for this page, for reference purposes)

University of Kent Author Information

Laleng, Per C.

Creator's ORCID:	https://orcid.org/0000-0003-1077-2453
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