Core message for practice
Informal admission after the Supreme Court decision is not a broad permission to treat quiet, compliant or recently detained patients as outside Article 5. In mental health hospital settings, especially after s.2 detention or where capacity and acceptance are unclear, practitioners should start from a high-alert position: there may be a deprivation of liberty unless there are specific, evidenced reasons why not.
What has changed — and what has not?
| Issue | Earlier framing | Revised practice focus |
|---|---|---|
| Legal threshold | The Cheshire West acid test: continuous supervision and control, and not free to leave. | A more contextual assessment of the type, duration, effect and manner of implementation of restrictions. |
| Starting point in MH hospital | Sometimes treated as a balanced judgement between informal admission and deprivation of liberty. | Start from Article 5 risk unless specific evidence shows why the person is not deprived of liberty in the actual circumstances. |
| Capacity and acceptance | Lack of capacity was often treated as meaning informal admission could not be valid. | Basic understanding and acceptance may be relevant, but must be evidenced and revisited. Silence, passivity or settled presentation are not enough. |
| Post-detention cases | Discharge from s.2 could be treated as a fresh informal admission decision. | Recent compulsory detention raises the caution level. Practitioners should record what has materially changed and why safeguards are no longer required. |
| Risk | Clearer legal route, but potentially wider use of DoLS/Court scrutiny. | More room for judgement, but greater risk of poor reasoning, assumed consent, missed objection or safeguard loss. |
Default to scrutiny, not reassurance
The practical question is not “can we describe this as informal?” The question is “has the state provided a lawful basis, safeguards, review and a route to challenge for the actual level of control being exercised?”
Positive obligations
Where the person is confined in substance and valid consent is absent or doubtful, Article 5 requires legal visibility. The state cannot avoid safeguards by relying on benign language.
Hospital reality
Mental health admission often involves locked environments, observation, medication, leave limits and professional control. Those features should raise the question of deprivation of liberty, not soothe it away.
Evidence can displace risk
There may be cases where the person is genuinely accepting, restrictions are light, and no DoL arises. But the evidence has to do the work. The label “informal” cannot.
Recent s.2 detention changes the analysis
The move from s.2 to informal status is not a neutral reset
If compulsory powers were needed shortly before, the bar should be high before concluding that the person is now merely “settled”, not deprived of liberty, and needs neither s.3 nor DoLS / other Article 5 safeguards.
What has materially changed?
- Has the person’s mental state changed?
- Has risk changed?
- Have restrictions reduced?
- Has understanding improved?
- Is acceptance now meaningful and stable?
What should not drive the decision?
- A wish to avoid s.3 consequences.
- Administrative convenience.
- The person becoming quieter on the ward.
- The assumption that “settled” means free.
- A thin note that they are “not objecting”.
The three questions that now matter
Understanding
- Does the person understand where they are?
- Do they understand the purpose of admission?
- Do they understand key restrictions, including locked doors, medication, observation and leave?
- Do they understand any realistic alternative?
Acceptance
- Are they genuinely accepting the arrangements?
- Could they realistically say no?
- Are they passive, anxious, suggestible, sedated, fearful or resigned?
- What does their behaviour mean in context?
Ongoing review
- Consent is not a one-off admission event.
- Acceptance may change once the person experiences the ward.
- Review is triggered by distress, refusal, increased restriction or attempts to leave.
Practice caution
Not objecting is not the same as meaningful consent. Acceptance must be evidenced, supported and revisited.
Voluntary, informal or formal detention?
| Status | What it indicates | Practice caution |
|---|---|---|
| Voluntary admission | Clear, capacitous decision-making and active agreement to admission. | Do not use “voluntary” casually where understanding is limited, pressure is present, or the person cannot realistically leave. |
| Informal admission | May be defensible where there is evidence of basic understanding, meaningful acceptance, no objection, proportionate restrictions and active review. | This is the risky grey area. It needs evidence, not assumptions. The more hospital control there is, the harder the reasoning has to work. |
| Formal detention / DoLS / Court route | Required or strongly indicated where there is objection, significant risk, lack of acceptance, ongoing confinement, or need for formal safeguards. | Do not avoid formal routes because the person is quiet, confused, difficult to read or superficially settled. |
A practical route through the grey area
Advocacy changes the safeguard picture, not the Article 5 test
Wales
There may be more room for a carefully safeguarded informal admission because IMHA support is available to informal mental health patients. That can help evidence understanding, acceptance, challenge and review.
But advocacy does not itself remove a deprivation of liberty. The real restrictions, acceptance and route to challenge still have to be analysed.
England
Where equivalent IMHA access is not yet available for informal patients, the safeguard gap is sharper. That should increase caution, especially where the person has limited capacity, unclear acceptance, or recent detention.
If advocacy is not available, teams need to be explicit about alternative safeguards, family involvement where appropriate, review triggers and escalation routes.
Do not let safeguards quietly disappear
Independent scrutiny
A major concern is the potential loss of DoLS/BIA-style independent scrutiny where someone is treated as informal because they appear compliant.
Core dilemma
If a person understands at a basic level and appears compliant, but lacks full decision-making ability, is this valid informal admission or does it require formal safeguards?
Review triggers
Build in review points when the person becomes distressed, tries to leave, refuses medication, family disagree, or restrictions increase.
Alternative safeguards
Use advocacy, family involvement where appropriate, care planning, supervision, complaints routes, legal advice and escalation. Do not let “informal” mean invisible.
Record the reasoning journey
Why Article 5 risk was considered and what evidence shows a deprivation of liberty is or is not present.
If post-s.2, what has materially changed and why s.3 / DoLS / Court route is not required.
What the person understood about place, purpose, restrictions, treatment and alternatives.
Words, behaviour, communication support, consistency and whether the person could realistically say no.
Refusal, distress, attempts to leave, resistance, past objections, family evidence or values-based concern.
What restrictions apply, how often, for how long and what effect they have.
Why voluntary, informal, MHA detention, DoLS/Court or escalation was chosen at this time.
When the decision will be revisited and what would trigger escalation.
The defensible position
The Supreme Court shift may create more room for arguing that some arrangements are not a deprivation of liberty. But in mental health hospital practice — especially after recent detention, limited capacity, locked wards, observation, medication, unclear acceptance or pressure to avoid formal consequences — the safer starting point is that Article 5 risk is present unless there is clear evidence to the contrary.
Source note
This revised briefing incorporates the additional practice cautions on post-s.2 cases, Article 5 positive obligations, “least restrictive” reasoning, and England/Wales advocacy differences. It remains a practice learning briefing and should be aligned with local legal and operational guidance before publication.

