Supreme Court overrules Cheshire West: implications for deprivation of liberty law

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The UK Supreme Court has unanimously overruled the 2014 decision in Cheshire West in a significant judgment (UKSC 16, 2 June 2026), fundamentally reshaping how deprivation of liberty is assessed under Article 5 of the European Convention on Human Rights.

The Court rejected the “acid test” established in Cheshire West, which focused on continuous supervision and lack of freedom to leave, and instead restored a multifactorial approach aligned with longstanding European Court of Human Rights case law. This requires consideration of the individual’s specific circumstances, including the type, duration, effects and context of restrictions.

A key development is the Court’s emphasis on “valid consent” as part of the assessment. Even where a person lacks legal capacity under domestic law, they may still be capable of expressing acceptance of their care arrangements. Such acceptance can be a significant factor in determining whether there is a deprivation of liberty. The judgment also highlights the importance of context, including compliance, the relative normality of the placement, and the purpose of restrictions.

The Court acknowledged the complexity of assessing consent and restriction in practice, particularly for people with mental health conditions, learning disabilities and autism across a range of settings, from hospitals and care homes to supported living and private homes.

Importantly, there is no transition period: the Cheshire West approach must no longer be applied with immediate effect. Existing guidance will need to be interpreted accordingly, pending updated official guidance. Although the case arose from Northern Ireland, it has practical effect across the UK given the shared reliance on Article 5 ECHR in defining deprivation of liberty.

We will provide a more substantial analysis of this judgment and its implications in due course, and will keep members informed as further guidance as it emerges.