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Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Absconding, restraint and emergency legal frameworks

Psychiatry · UK scope · Sources checked 7 Sept 2026 · Clinical review pending

RapidFull
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Immediate serious harm requires a clear lawful response

An attempt to leave may expose a person to imminent serious harm, but being in hospital or having a psychiatric diagnosis does not itself authorise detention or forced treatment.

Action: Call the senior clinician and relevant liaison or emergency support, assess the specific danger and decision-making ability, use the least restrictive lawful action required, and record the reason, legal basis, timing and review.

Synopsis

Respond proportionately when a patient wants to leave or leaves unexpectedly, distinguish detention from treatment authority and document the correct emergency legal basis and safeguards.

  • The Mental Health Act 1983 and Mental Capacity Act 2005 framework discussed here applies to England and Wales; Scotland and Northern Ireland have different legislation.
  • A patient with capacity may make an unwise decision, including declining recommended medical treatment, unless another lawful power applies.
  • Assess capacity for the particular decision at the relevant time after providing practical communication and decision support.
  • MHA section 5 holding powers apply to eligible hospital inpatients, not ordinary emergency-department attendees who have not been admitted.
  • Section 5(2) provides up to seventy-two hours for the authorised clinician's holding power; section 5(4) is a limited nursing power for up to six hours or earlier authorised clinician arrival.
  • Section 5 detention does not itself authorise medical treatment without consent; establish separate treatment authority.
  • MCA restraint must be necessary to prevent harm to the person and proportionate to the likelihood and seriousness of that harm.
  • Document current restrictions, alternatives, time limits and reassessment; a legal form does not replace continuing clinical judgement.

Key red flags

A missing patient with immediate suicide intent, severe confusion, critical untreated illness or another specific serious threat requires an urgent coordinated response with appropriate emergency-service involvement.

Restriction that prevents breathing, causes collapse or continues after its justification ends must be stopped or changed immediately with medical reassessment.

Investigation priorities

01
Immediate facts and safety assessmentFirst step

Establish location, last observation, stated intentions and the concrete danger associated with departure.

Management branches

Patient wants to leaveSeek a voluntary safe solution

A patient indicates an intention to leave before the team considers care complete.

  1. Ask why they want to leave, address practical concerns and explain the relevant medical uncertainty and possible consequences in understandable language.
  2. Assess the particular decision and legal status, involving senior and liaison staff promptly when serious risk, impaired capacity or mental-disorder detention criteria may apply.
  3. If the patient can lawfully leave, offer a safer alternative, written advice and follow-up while documenting the discussion; a signature is not a substitute for adequate assessment.
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Sources and review status8 sources · checked 7 Sept 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 7 Sept 2026; clinical approval remains outstanding.

  • Mental Health Act 1983 section 5Eligible inpatients, authorised clinicians, nursing power and holding periods in England and Wales.
  • Mental Health Act 1983 Code of Practice EnglandSection 5 scope, combined time limit, treatment distinction and least-restrictive practice.
  • Mental Capacity Act 2005 section 6Additional necessity and proportionality requirements for restraint.
  • Mental Capacity Act Code of PracticeDecision-specific capacity, best interests and emergency care in England and Wales.
  • DHSC Supreme Court 2026 deprivation-of-liberty guidanceImmediate multifactorial definition and continuing safeguards after 2 June 2026.
  • Mental Health Act 2025 first commencement regulations 2026Sections 51 and 52 commenced on 6 April 2026; illustrates provision-specific phased commencement.
  • NICE NG10 restrictive intervention recommendationsClinical safety, restraint limits and post-incident review.
  • Mental Health Act 1983 Code of Practice WalesWelsh statutory guidance for holding powers and patients' rights, to be read with operative legislation and subsequent legal developments.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom