Statutory Legal Test Criteria of Section 3 of the Mental Health Act 1983

The Tribunal evaluates whether the following conditions are met:

1. Mental Disorder
   • The patient must have a mental disorder as defined under Section 1(2) of the Mental Health Act, which includes any disorder or disability of the mind.
   • An example might be schizoaffective disorder, a chronic and relapsing condition characterised by partial recovery followed by predictable decline when treatment adherence is compromised.
2. Nature or Degree of Disorder
   • The disorder must be of a nature (chronicity, prognosis, and typical characteristics) or degree (current severity and presentation of symptoms) that makes it appropriate for the patient to be detained for medical treatment.
   • A tribunal needs to determine that both nature and degree are satisfied due to the enduring characteristics of the mental health disorder, any guarded prognosis, and the current manifestation of symptoms, including any risk of self-neglect, poor personal hygiene, and limited insight.
3. Availability of Appropriate Medical Treatment
   • Appropriate medical treatment must be available to address the patient’s condition.
   • A tribunal must confirm that treatment options, including depot antipsychotic medication, psychological therapy, and physical health oversight, are actively provided.
4. Necessity of Detention
   • Detention must be necessary for the patient’s health, safety, or the protection of others. A tribunal will therefore need to determine that hospital detention remains necessary under all three limbs of the s.3 statutory test:
   • Health: This may include a high probability of medication cessation and relapse upon discharge.
   • Safety: This is to prevent self-neglect and vulnerability during relapse.
   • Protection of Others: To mitigate the risks of the patient’s aggression and unsafe behaviours linked to untreated illness.

Least Restrictive Option

The tribunal must also consider whether detention is the least restrictive option available. For example, a tribunal might determine that a Community Treatment Order (CTO), with supported accommodation, cannot safely replace current hospital detention at the time of the tribunal’s consideration, where necessary conditions (such as supervised depot medication, suitable accommodation, and demonstrated engagement in rehabilitation) are not yet evident.

Adjudication on Detention

A tribunal must conclude that continued detention remains the least restrictive option for the safe delivery of treatment and management of risks.

Evidence

A tribunal can take into account medical notes, clinician opinions, and the views of others. The views and potential support provided by family members will also be considered.

The Tribunal’s Discretionary Power to Discharge

The discretionary power to discharge will not be exercised where it is deemed inappropriate, given the entirety of the patient’s circumstances.

Authors: The Mental Health Law Barristers at Alexander Chambers