In the Matter of an Application by RM by SM for Judicial Review (Northern Ireland)
•February 25, 2026
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Why It Matters
The ruling and commentary could shape how tribunals and courts treat risk, leave and conditional discharge, affecting clinical pathways for patients who might be managed outside hospital; the unresolved legislative gap in Northern Ireland leaves authorities dependent on guidance, with significant policy and liberty implications for vulnerable patients.
Summary
The High Court considered a judicial-review challenge to a tribunal’s refusal to discharge a detained patient under Article 77, agreeing the tribunal had correctly found a substantial likelihood of serious physical harm and upheld the decision to keep him detained pending further testing. The panel discussed the tribunal’s reasoning on A and B criteria, the use of dynamic-risk assessment tools (the ‘‘Armadillo’’), and the central supervisory role of the Responsible Medical Officer (RMO) in managing Article 15 leave. The patient was later placed on Article 15 leave from March 2021 and has been progressing toward conditional discharge, as the Department ceased opposing. The judges also wrestled with a wider legal gap in Northern Ireland over whether conditions attached to conditional discharge amount to a deprivation of liberty (the ‘‘M’’ issue), noting there is no current NI legislative fix and reliance falls on guidance and extended leave arrangements.
Original Description
In the matter of an application by RM (a person under disability) by SM, his father and next friend (Respondent) for Judicial Review (Northern Ireland)
UKSC/2022/0144
In the matter of an application by RM (a person under disability) by SM, his father and next friend (Respondent) for Judicial Review (Northern Ireland) No 2
UKSC/2022/0145
Hearing date: 15 November 2023
Session: Afternoon session [Session 2 of 3]
Judgment date: 21 February 2024
Neutral citation: [2024] UKSC 7
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