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Section 136: Police Powers

Mental HealthEngland & WalesLast reviewed: 1 April 20256 min

Section 136 of the Mental Health Act 1983 gives police officers in England and Wales the power to remove a person who appears to have a mental disorder from a public place to a "place of safety" for assessment. The maximum period is 24 hours (extendable by a further 12 hours in limited circumstances). This power is intended to be a gateway to assessment, not a form of punishment.

Important

Mental Health Act content is complex — always seek qualified legal advice or contact Rethink Mental Illness (0808 801 0525) or Mind (0300 123 3393). The Mental Health Bill 2025 is currently progressing through Parliament and proposes significant changes including reformed detention criteria for people with personality disorders and learning disabilities, advance choice documents, and changes to nearest relative provisions. Always check the latest position before acting.

Key points

  • Section 136 allows police to take someone from a public place to a place of safety for assessment — not for detention or treatment.
  • The maximum period is 24 hours, extendable by a further 12 hours if clinically necessary.
  • A place of safety is usually a designated health-based place of safety (HBPoS) or a hospital — custody can only be used in very limited circumstances.
  • The person must be assessed by a doctor and an AMHP as soon as practicable while at the place of safety.
  • The 2017 MHA amendments significantly reformed Section 136, ending the use of police cells as a default place of safety.

When Police Can Use Section 136

A police officer can use Section 136 where they find a person in a public place who:

  1. Appears to the officer to be suffering from a mental disorder, and
  2. Appears to be in immediate need of care or control.

The officer must consider it necessary to remove the person in the interests of their own protection or for the protection of others. The officer does not need to be certain the person has a mental disorder — appearing to have one is sufficient.

Since the Policing and Crime Act 2017, Section 136 can also be used in private premises (such as a person's home) if the officer is already lawfully on the premises. This addressed a previous gap where officers could not use the power in domestic settings.

Place of Safety: Where People Are Taken

Under the 2017 reforms, the preference is strongly for a health-based place of safety (HBPoS) — a dedicated facility, usually within a psychiatric unit, specifically designed to receive and assess people under Section 136. Police cells can only be used as a place of safety in exceptional circumstances where:

  • The person's behaviour poses a serious and imminent risk to the safety of others, and
  • A health-based place of safety cannot safely manage that risk

The use of police custody for under-18s under Section 136 is now prohibited — children must be taken to a health-based place of safety.

In practice, delays in HBPoS availability remain a challenge in some areas, though NHS England has invested significantly in HBPoS capacity since 2017.

Rights While Detained Under Section 136

A person detained under Section 136 retains important rights:

  • Right to be assessed: The detainee must be examined by a registered medical practitioner and interviewed by an AMHP as soon as practicable.
  • Right to information: The person must be told why they have been detained and what is happening.
  • Right to have someone informed: The person should be able to notify a relative, friend, or carer of their whereabouts, unless this would risk harm to others.
  • Right to an IMHA: As a person detained under Section 136, you are entitled to access an Independent Mental Health Advocate.
  • Right to legal advice: While Section 136 is not a custodial detention by police, you can request legal advice.

What Happens After Section 136 Assessment

Following assessment under Section 136, there are three possible outcomes:

  1. Discharge: If the AMHP and doctor are satisfied that the person does not meet the criteria for detention, they must be released. Care should be taken to ensure the person has support in place and is not simply discharged without follow-up.
  2. Informal admission: If the person has capacity and consents, they can be admitted informally to a psychiatric hospital for further assessment and treatment.
  3. Formal detention: If the criteria for Section 2 or Section 3 are met, an AMHP application can be made and the person will be formally detained under the MHA 1983.

The police have no power to detain the person beyond the 24-hour (or 36-hour in extended cases) period — if no assessment has been completed and no application made, the person must be released.

Frequently asked questions

Can Section 136 be used inside my home?
Following the Policing and Crime Act 2017, police can use Section 136 powers in private premises (including someone's home) if they are already lawfully present on those premises. However, a separate power — Section 135(1) — allows a magistrate to issue a warrant to enter a property specifically to use Section 136-type powers where a person is believed to be in need of care.
How long can I be held under Section 136?
The maximum period is 24 hours. This can be extended for a further 12 hours (to a maximum of 36 hours) if a doctor decides, in writing, that additional time is necessary to complete the assessment. A further 12-hour extension can be authorised by a second doctor. Extensions require specific statutory justification — they are not routine.
Can my child be taken to a police cell under Section 136?
No. The Policing and Crime Act 2017 made it unlawful to use a police cell as a place of safety for a person under 18 detained under Section 136. Under-18s must be taken to a health-based place of safety.
Will a Section 136 appear on my criminal record or DBS check?
Section 136 is a civil (not criminal) detention — you have not been arrested or charged with any offence. It should not appear on a standard DBS (Disclosure and Barring Service) check. However, in limited circumstances, information about mental health detentions can be disclosed on enhanced DBS checks for certain roles. Seek advice from Unlock or a specialist solicitor if you are concerned.

What to do next

  1. 1
    Mental Health Act basics

    Overview of all key MHA 1983 sections and rights.

  2. 2
    Section 2 assessment

    Section 136 may convert to Section 2 following assessment.

  3. 3
    Advocacy and IMHA

    Access an Independent Mental Health Advocate if you are detained.

  4. 4
    Mind Section 136 guide

    Detailed information about Section 136 from Mind.

Official bodies and resources

National Health Service

Government

The publicly funded healthcare system in the United Kingdom, providing free healthcare for all UK residents.

Care Quality Commission

Regulator

The independent regulator of health and adult social care in England, inspecting and rating care services.

Citizens Advice

Charity

Provides free, confidential, and independent advice on a wide range of issues including benefits, housing, debt, and employment.

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Disclaimer

This information is for general guidance only and does not constitute legal advice. You should seek qualified legal help if your situation requires it.