SUPREME COURT RULING: REMOVAL OF THE ‘ACID TEST’

The Supreme Court in A Reference by the Attorney General for Northern Ireland of a devolution issue under paragraph 34 of Schedule 10 to the Northern Ireland Act 1998 (June 2026) overruled the Cheshire West case from 2014 and immediately removes the ‘acid test’ as the way of determining whether a person’s care arrangements deprive them of their liberty.  References to the ‘acid test’ have been removed, and replaced with detail from the latest judgment, see Section 3, Identifying Deprivation of Liberty.

Further updates will be made as and when revised guidance is issued..

1. Deprivation of Liberty under Article 5 of the European Convention on Human Rights

Under Article 5 of the European Convention Rights (‘ECHR’), a person is deprived of their liberty if three elements are satisfied:

  1. an objective element: a person’s confinement in a restricted place for a not negligible period of time;
  2. a subjective element: that the person has not given valid consent to their confinement;
  3. imputability to the state: that the state is responsible, directly or indirectly for the confinement.

2. The Deprivation of Liberty Safeguards

In England and Wales, the Deprivation of Liberty Safeguards (DoLS) are used to check that actions which limit the liberty of a person, who does not have the capacity to consent to this, are done in the least restrictive way necessary to keep them safe and that it is in their best interests.

DoLS provides a process for a deprivation of liberty in a hospital or registered care home to be made legal through either ‘standard’ or ‘urgent’ authorisation processes. These processes are designed to prevent the making of arbitrary decisions to deprive a person of liberty. They also give people a right to challenge deprivation of liberty authorisations.

As well as hospitals and registered care homes, a deprivation of liberty can also occur in domestic / home type settings where the state is responsible for enforcing such arrangements. This may include a placement in a supported living arrangement in the community and in a person’s own home. Where a deprivation of liberty occurs outside of a hospital or registered care home, it must be authorised by the Court of Protection.

3. Identifying a Deprivation of Liberty

The Supreme Court in A Reference by the Attorney General for Northern Ireland of a devolution issue under paragraph 34 of Schedule 10 to the Northern Ireland Act 1998 (UK Supreme Court, June 2026) ruled on what counts as a deprivation of liberty under article 5(1) of the European Convention on Human Rights.  The Court reversed the previous Supreme Court ruling in P v Cheshire West and Chester Council which held that the ‘acid test’ for a deprivation of liberty was whether an individual was subject to ‘continuous supervision and control’ and ‘not free to leave’.

In the 2026 ruling, the Supreme Court held that:

  • the starting point in assessing whether someone has been deprived of their liberty is the specific, concrete situation of the individual concerned;
  • instead of the ‘acid test’, the assessment should be multifactorial and take account of a range of factors including the type, duration, effects and manner of implementation of the measure in question. No single factor is determinative. The approach should be practical and realistic;
  • the required focus on the ‘concrete situation’ of the individual and the ‘realities of the situation’, taking account of the type of measure in question, means that it is relevant to have regard to the purpose of the measure, even though this is not decisive by itself;
  • whilst a person may not have mental capacity to make decisions about their care and residence arrangements, if they have a basic level of awareness and consciousness of their living arrangements that is sufficient to enable them to know and communicate whether they are happy or unhappy with them, they may be treated as able to give or withhold ‘valid consent’ to confinement by an expression of their wishes and feelings. Where there is serious doubt, no inference of valid consent should be drawn;
  • whilst the previous ‘acid test’ took no account of the type of setting, the normality of the circumstances in which an individual is cared for (e.g. the fact that they are living in their own home or in the community) is a relevant factor in assessing whether there has been a deprivation of liberty;
  • where an individual is subject to innate limitations by reason of their own physical or medical condition, then some element of coercion or externally imposed restrictions which prevent them from exercising their fundamental right to physical liberty is likely to be required for it to constitute a deprivation of liberty.

This judgment is likely to result in a significant fall in the numbers of cases where an adult’s placement in a health or social care setting will require authorisation as a deprivation of liberty.

It is important l that all care providers are able to recognise when the care plan proposed might deprive a person of their liberty and then take the required action by applying for an authorisation to the supervisory body or Court of Protection (depending on the care setting).

Health and social care professionals must also know how to notify the supervisory body of deprivation of liberty which may be unauthorised.

4. Restrictions and Restraint

There is a difference between a deprivation of liberty (which is unlawful, unless authorised) and restrictions on a person’s freedom of movement.

Restrictions of movement (if in accordance with the principles and guidance in the Mental Capacity Act 2005 (MCA)) can be lawfully carried out in a person’s best interests, in order to prevent harm. This includes use of physical restraint where that is proportionate to the risk of harm to the person and in line with best practice.

Examples of restraint and restrictions include:

  • using locks or keypads to prevent a person leaving a specific area;
  • administration of certain medication, for example to calm a person;
  • requiring a person to be supervised when outside;
  • restricting contact with family and friends, including if they could harm the person;
  • physical intervention to stop someone from doing something which could harm themselves;
  • removing items from a person which could harm them;
  • holding a person so they can be given care or treatment;
  • using bedrails, wheelchair straps, and splints;
  • requiring close supervision / monitoring in the home.

Any restrictions introduced should be the least restrictive required in the circumstances to keep the person safe and meet their needs. Guidance from the LGA and ADASS, Promoting less restrictive practice: reducing restrictions tool for practitioners contains examples for care homes on situations they come across on a daily basis and provides advice on how they can reduce restrictions and the blanket support they may have in place.

5. The Deprivation of Liberty Safeguards Process

5.1 Making an application for a standard authorisation

There are several stages involved in authorising a deprivation of liberty.  It is the local authority’s legal duty, as the supervisory body, to ensure that where a person is being deprived of their liberty in a hospital or a registered care home, or a deprivation of liberty is being proposed, that steps are taken to safeguard them. This only applies to people where they are ‘ordinarily resident’ in that local authority. The supervisory body organises and oversees the entire process for authorising a deprivation of liberty  that occurs in a registered care home or hospital. (See Ordinary Residence chapter for more guidance on deciding ordinary residence where this is unclear).

Annex 1 in the DoLS Code of Practice provides an overview of the legal process that begins when an application for a standard authorisation is received.

As a first step, the managing authority (the hospital or registered care home) must fill out a Form 1 Deprivation of Liberty Safeguards: Resources, gov.uk) requesting a standard authorisation. This should be sent to the supervisory body (the local authority DoLS team), who will then commission assessments to decide whether the person meets the necessary requirements for a standard authorisation to be granted or not granted.

5.2 Managing authority granting an urgent authorisation

The managing authority must decide whether an urgent authorisation should be issued in addition to their application for a standard authorisation (this is their responsibility) or whether just a standard authorisation is needed.

An urgent authorisation enables the managing authority to lawfully deprive the relevant person of their liberty for a maximum of seven days where certain criteria are met. This can be extended by the Supervisory Body for a further seven days, but only if certain criteria are met (see Deprivation of Liberty Safeguards: Resources. DHSC).

When issuing an urgent authorisation, the managing authority must reasonably believe a standard authorisation would be granted.

Before granting an urgent authorisation, the managing authority should try to speak to the family, friends and carers of the person and inform the person managing the person’s care. Information they provide may assist in preventing the adult being deprived of their liberty. Efforts to contact family and friends and any discussions had with them should be documented in the adult’s case records and on the urgent authorisation. The managing authority also need to ensure that they provide up to date contact information of friends / family / carers / advocates / allocated worker and other professionals on the Form 1 when they make the referral or grant themselves an urgent authorisation.

6. The Assessment Process

Before the supervisory body can grant an authorisation for a deprivation of liberty, the following assessments will be completed:

  • mental health assessment: to confirm whether the person is suffering from a mental disorder;
  • eligibility assessment: to confirm the person’s existing or potential status under the Mental Health Act, and whether it would conflict with a DoLS authorisation (this would normally be in a hospital setting).
  • mental capacity assessment: carried out by either the mental health or best interest assessor to determine the person’s capacity to validly consent to their current care arrangements;
  • best interests assessment: confirms whether deprivation of liberty is occurring, whether it could be avoided, and whether it is in the person’s best interests. The assessment will also recommend how long the authorisation should last and who should act as a person’s representative throughout the period of authorisation;
  • age assessment: to confirm the person is at least 18 years of age for DoLS. If a person is between the ages of 16 and 18 years of age, application needs to be made to the Court of Protection if they need to be deprived of their liberty;
  • no refusals assessment: to confirm whether there is any valid advance decision which would conflict with the authorisation, or if there is a valid and registered Lasting Power of Attorney or Deputy with authority over welfare decisions who would oppose the authorisation.

The assessments must be completed by specially trained professionals.

An Independent Mental Capacity Advocate (IMCA) may also be appointed during the assessment process if required if the person does not have any family / friends or other non-professionals involved (see Independent Mental Capacity Advocates and Independent Mental Health Advocates chapter).

7. Granting, or not Granting, a Standard Authorisation

If any of the requirements in Section 6, The Assessment Process are not met, a deprivation of liberty authorisation cannot be lawfully granted. This may mean the registered care home or hospital must change its care plan to remove the restrictions and restraints causing the deprivation of liberty.

If all requirements are fulfilled, the supervisory body must grant the deprivation of liberty authorisation, for up to a maximum of one year. The supervisory body must inform the adult, those consulted, and the managing authority in writing.

The restrictions should cease as soon as the adult no longer requires them; they do not have to be in place for the full period of the authorisation.

At the end of the authorisation period, if it is believed the adult still needs to be deprived of their liberty, the managing authority must request another standard authorisation.

8. Conditions and Recommendations

The best interests assessor (BIA) can recommend certain conditions are applied to the standard authorisation. The supervisory body can choose whether to attach the BIA’s recommended conditions to the standard authorisation if they agree with them, or the supervisory body can attach its own conditions to the authorisation. The managing authority must implement the conditions.

It is ultimately the supervisory body’s responsibility to ensure that any conditions attached to a DoLS authorisation are complied with.

The BIA or supervisory body can also give recommendations relating to the deprivation of liberty to the local authority or organisation managing a person’s care.

9. Appointing a Relevant Person’s Representative

Everyone who is subject to a deprivation of liberty standard authorisation will be appointed a Relevant Person’s Representative (RPR). The RPR must maintain regular face to face contact with the person, and represent and support them in all related matters, including requesting a review or applying to the Court of Protection to  challenge a DoLS authorisation.

If there is no family member, friend, or informal carer suitable to be the person’s representative, the DoLS team will appoint a professional representative. Their name should be recorded in the person’s health and social care records.

The family / friend RPR has the right to request the advice and support of a qualified IMCA (see Independent Mental Capacity Advocate and Independent Mental Health Advocate chapter).

If a person is deprived of their liberty in a setting other than a care home / hospital and the Court of Protection issues a community DoL order authorising their deprivation of liberty, the person must be given a Rule 1.2 Representative. In Re KT & others, which was heard before the Court of Protection, Mr Justice Charles approved the use of general visitors to act as Rule 1.2 Representatives when there is no one else – such as family members or advocates – available to act for the person who is the subject of the proceedings. General visitors are commissioned by the Court of Protection to visit the person and others involved in the case, and report back their findings. Appointing a general visitor safeguards the rights of the person in the proceedings.

It is also the responsibility of the RPR or Rule 1.2 Representative to ensure that any conditions attached to a DoLS authorisation or community DOL order are complied with and report this back to the supervisory body or court.

10. Reviewing the Standard Authorisation

This is also known as Part 8 DoLS Review. The registered care home / hospital (managing authority) must monitor and review the adult’s care needs on a regular basis and report any change in need or circumstances that would affect the deprivation of liberty authorisation or any attached conditions. The care home / hospital must request a DoLS review if:

  • the adult (who is the ‘relevant person’) no longer meets any qualifying requirements;
  • the reasons they meet the qualifying requirements have changed;
  • it would be appropriate to add, amend or delete a condition placed on the authorisation due to a change in the adult’s situation;
  • the adult or their representative has requested a DoLS review, which they are entitled to do at any time.

Where necessary, the supervisory body will arrange for assessors to carry out a review of an authorisation when statutory conditions for a Part 8 DoLS review are met. DoLS reviews do not replace other health or social care reviews.

A review of the DoLS requirements and or conditions can be undertaken, if necessary, at any time during an authorisation period.

10.1 Where the person ‘objects’ to being deprived of their liberty in a hospital or registered care home

A Court of Protection judgment in February 2015 ruled that in all cases where a person lacks capacity, a DoLS assessment has been completed and the person objects to their placement, a referral must be made to the Court of Protection under S.21A Mental Capacity Act.

This referral would often be made by the Relevant Person’s Representative (RPR) (see Section 9,  Appointing a Relevant Person’s Representative) but if this does not happen the local authority should take action to make the referral themselves.

Practice lessons from the judgment include:

  • plan in advance: care should be taken to ensure that a DoLS assessment is completed prior to the move of the relevant person into residential accommodation. There should be very few exceptions to this rule. DoLS assessments should be completed in the case of ‘respite’ care if it is likely that this will become permanent either prior to the placement or with urgency after the placement is started;
  • RPR – conflict of interest: care should be taken that the person appointed as the RPR is willing to make a referral to the Court of Protection if the relevant person objects to their placement. This may be difficult if the RPR is a family member who has a personal interest in the placement of the relevant person. In this case a professional representative should be appointed;
  • local authority duty (supervisory body): the local authority has a duty to check that the RPR meets all the criteria and, if not, to take action to rectify this. They should make resources available to provide IMCAs;
  • challenge to placement: where the relevant person is challenging their placement, action should be taken speedily to refer to Court of Protection.

For more information, please see: AJ (Deprivation of Liberty Safeguards). 

11. Deprivation of Liberty outside a Hospital or Registered Care Home Setting

This is also known as deprivation of liberty in a domestic setting or community DoL.

Applications to authorise a deprivation of liberty in the community are made to the Court of Protection (contact the local authority’s legal department for more details). In most cases the authorisation is a paper-based application that should not require a court hearing.

As a practitioner you will also need to ascertain whether the person who has a care package at home or in supported living, may be deprived of their liberty by way of their care plan:

  • If so, you will need to make the application for a deprivation of liberty which can only be authorised by the Court of Protection.
  • Let your manager know that you are working with a person who may be deprived of their liberty. This is important as all referrals to the Court of Protection need to be sent via the relevant legal team and there is a cost involved.
  • Follow the relevant guide from your legal department to make a deprivation of liberty application as soon as possible.
  • It is possible for more than one application to be made to the Court of Protection at a time and the court is currently able to accept numerous applications at the same time.
  • It is important that a person who has a Deprivation of Liberty authorisation in the community also has a Representative (COP Rule 1.2 part 3a); this person is appointed by the Court.

Court of Protection Hub Case Summaries – Court of Protection Hub

12. Alerting to Unlawful Deprivation of Liberty

If a person (professional or otherwise) suspects a person is being deprived of their liberty and it has not been authorised, they should first discuss it with the registered care home/ hospital ward manager, domiciliary care or supported living manager.

If the manager agrees the care plan involves deprivation of liberty, they should be encouraged to make a request for authorisation. Everyone should be satisfied the care plan contains the least restrictive option available to keep the person safe, and that it is in the person’s best interest.

If the manager does not agree to make a request for a DoLS authorisation, the concerned person should approach the local authority or Court of Protection to discuss the situation and report the potential unlawful deprivation.

13. Consequences of an Unlawful Deprivation of Liberty

If an organisation breaches a person’s human rights (Articles 5 & 8) by unlawfully depriving them of their liberty, it could result in legal action being taken, including a court declaration that the organisation has acted unlawfully and breached the adult’s human rights. This could lead to a claim for compensation, negative press attention and remedial action taken by commissioners and regulators.

14. Patients Receiving Life Sustaining Treatment

See Intensive Care Society and the Faculty of Intensive Care Medicine Guidance on MCA / DoL

The Supreme Court in A Reference by the Attorney General for Northern Ireland of a devolution issue under paragraph 34 of Schedule 10 to the Northern Ireland Act 1998 (June 2026) considered the position of those who are catatonic (e.g. due to severe dementia or following a stroke or traumatic head injury). Their concrete or specific situation is that, due to their physical condition, they do not have any bodily, physical liberty to exercise. Since there is no possibility of anyone contradicting their will in that regard, it cannot sensibly be said that anyone is subjecting them to treatment that constitutes a deprivation of their physical or bodily liberty. There is no objective and no subjective element of deprivation of liberty.

Where an individual is temporarily unconscious because of their physical condition (e.g. due to injury, disease or medication), it is relevant to take into account their potential to regain consciousness. In such cases an objective element of deprivation of liberty is present, in that when they regain consciousness they will be prevented from leaving. The subjective element is also present where they clearly do not, or would not (when they regain consciousness), consent to their arrangements.

In ordinary circumstances, an individual in hospital to receive treatment (and who, for their own protection, would be prevented from leaving while, say, confused and unable to think because of medication) would not be regarded as deprived of liberty. Ordinary expectations and the ordinary conduct of life play a significant role in the assessment whether there is a deprivation of liberty, the court judged.

15. Guidance on Covert Medications and DoLS

Covert medication is an interference with an individual’s right to a private life (Article 8). It is also likely to contribute to someone being deprived of their liberty (Article 5). The decision to covertly medicate should therefore always be subject to close scrutiny, particularly if that medication will affect an individual’s behaviour, mental health or act as a sedative. It is essential that any covert medication is administered in the least restrictive way possible and that safeguards are in place, for example, regular reviews of the decision to covertly medicate and whether it remains the least restrictive option in that particular patient’s case.

The steps that should be followed are as follows:

  • if an individual lacks capacity, is refusing to take the medication and is unable to understand the risks to their health if they fail to take the medication, then, in exceptional circumstances, covert medication can be considered;
  • prior to medication being administered covertly, a best interests meeting should be held with the relevant healthcare professionals, Relevant Person’s Representative (RPR) (if appointed) and family members;
  • if there is no agreement, there should be an immediate application to Court;
  • if it is agreed by everyone that covert administration of medication is in the individuals best interests, then this must be recorded and placed in their medical and/or care home records;
  • the existence of the covert medication must be clearly identified within the best interests assessment and DOLS authorisation;
  • an agreed management plan must be adopted allowing for the decision to covertly medicate and the corresponding care and support plan to be reviewed;
  • the management plan should specify the timeframes (possibly monthly, where the standard authorisation is longer than six months) and circumstances (such as change of medication or treatment regime) which would trigger a review;
  • these reviews should involve the relevant healthcare professionals, RPR (if appointed) and family members;
  • all of this information must be easily accessible when reviewing any of the individual’s records.

Each case is fact specific. However, where covert medication was anticipated prior to the best interests’ assessment, it would be inappropriate for standard authorisation to be for the maximum period of authorisation.

This reinforces the NICE guidelines on Covert Medication Administration. It emphasises that, while covert medication may, on the face of it, appear not to be a particularly restrictive option, it may still be a breach of an individual’s rights if the appropriate safeguards are not adopted.

It is therefore essential that where covert medication is used in an individual’s treatment, it is always the least restrictive option and there are checks in place to ensure that this decision is regularly reviewed.

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