After a Section 12 assessment under the Mental Health Act, one of several things happens: you may be detained in hospital under Section 2 or Section 3, or the professionals involved may decide that hospital admission isn’t necessary and arrange community-based support instead. The outcome depends on what the assessing team concludes about your mental health, your safety, and whether less restrictive options could meet your needs.
How the Assessment Works
A Mental Health Act assessment typically involves three professionals: an approved mental health professional (AMHP), who is usually a social worker, nurse, or psychologist; a registered medical practitioner; and a Section 12 approved doctor, who has specific training in mental health. The AMHP interviews you to determine whether hospital detention is the best way to provide the care you need. Both doctors assess your mental health and may also examine you physically. All three must broadly agree before any detention can go ahead.
The assessment can happen at home, in a hospital emergency department, or at a police station. It’s meant to be a thorough evaluation, not a quick decision, though in crisis situations it can feel fast-moving.
If You Are Detained Under Section 2
Section 2 is used when the team believes you need to be admitted to hospital for assessment of your mental health. It lasts up to 28 days. During this time, the clinical team observes you, makes a diagnosis if one hasn’t been established, and decides what treatment you need going forward. You can be given medication during this period, even without your consent, if your responsible clinician considers it necessary.
You have the right to appeal your detention to the Mental Health Tribunal within the first 14 days. After that initial window, you can apply once in every 12-month period if your detention continues under a different section.
If You Are Detained Under Section 3
Section 3 is used when your mental health condition is already known and the team decides you need hospital treatment. It allows detention for up to six months initially. After that, it can be renewed for a further six months, and then yearly if the clinical team believes you still need to be in hospital.
You can apply to the Mental Health Tribunal at any point during the first six months. If your detention extends beyond that, you can apply once in the second six-month period, then once every 12 months. A key difference from Section 2 is that being detained under Section 3 gives you a legal right to free aftercare services when you’re eventually discharged. This is known as Section 117 aftercare, and your local health authority and council are jointly responsible for providing it. It can include things like community mental health support, housing assistance, and ongoing therapy, and it continues for as long as you need it.
If You Are Not Detained
Not every Section 12 assessment results in hospital admission. The assessing team may decide that your needs can be met in the community. In that case, several alternatives might be arranged: referral to a crisis team that visits you at home, a place in a crisis house (a residential alternative to a hospital ward), or an urgent appointment with community mental health services. Drug and alcohol services or voluntary sector organizations may also be involved depending on your situation.
Sometimes the team concludes that while you’re unwell, detention isn’t justified because less restrictive support is available and appropriate. You might be offered a voluntary admission to hospital instead, which means you agree to stay and can, in principle, leave if you choose to. Or you might be discharged back to your GP with a care plan and follow-up appointments in place.
Transport to Hospital
If the decision is made to detain you, the AMHP is responsible for arranging your transport to hospital. This is usually by ambulance. In some cases, police may be involved in transport, particularly if there are safety concerns. The AMHP should choose the method that is least restrictive and most appropriate for your circumstances. You should be taken to the hospital named on the application, though if no bed is available there, arrangements will be made at another facility.
Your Rights Once Admitted
Once you arrive at the hospital, staff are required to explain your rights to you, both verbally and in writing. These include your right to appeal to the Mental Health Tribunal, your right to contact a solicitor, and your right to an Independent Mental Health Advocate (IMHA).
An IMHA is a specialist advocate assigned to help you understand your rights and navigate the system. They can meet with you in private, access your medical records (with your consent), and speak with anyone involved in your care. You can request an IMHA yourself, or your nearest relative, your responsible clinician, or the AMHP can request one on your behalf. Hospital staff cannot intercept or withhold any correspondence between you and your advocate.
Your nearest relative also has certain powers under the Mental Health Act. They can apply to the hospital managers for your discharge, though the responsible clinician can block this if they believe you would be a risk to yourself or others. Your nearest relative should be informed of your detention and their own rights, though there are some circumstances where this notification can be delayed.
What Happens During Your Stay
Under Section 2, the focus is on assessment. The clinical team will monitor your mental state, try different approaches to understand your condition, and develop a treatment plan. Toward the end of the 28 days, the team must decide whether to discharge you, convert your detention to Section 3 for ongoing treatment, or arrange for you to stay voluntarily.
Under Section 3, treatment is the primary goal. This typically involves medication, talking therapies, occupational therapy, and structured daily routines on the ward. Your responsible clinician reviews your progress regularly and should involve you in decisions about your care as much as possible. You’ll have a care plan that is updated throughout your stay.
Both sections allow treatment without your consent if the clinical team deems it necessary, though there are safeguards. Certain treatments, such as electroconvulsive therapy, require additional approvals. After three months of medication under Section 3, a second opinion from an independent doctor is required if you haven’t consented to your treatment.
Discharge and Aftercare
Discharge can happen in several ways. Your responsible clinician can decide you no longer meet the criteria for detention and release you. The hospital managers can order your discharge after a review. The Mental Health Tribunal can direct your release. Or your nearest relative can apply for your discharge, subject to the clinician’s right to object.
If you were detained under Section 3, your local health services and council must provide Section 117 aftercare. This is a legal obligation, not discretionary, and the services must be provided free of charge. Aftercare planning should begin well before your discharge date and typically involves a meeting with community mental health staff, your care coordinator, and sometimes housing or social services. The goal is to ensure you have the support structures in place to stay well outside of hospital.