Advance choice documents aim to cut compulsory psychiatric admissions

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: WP1: Focus Groups Service users-Young people Aged ≥ 16 Experienced detention under the MHA while in the care of CAMHS Currently under the care of community mental health services (CAMHS / EI / CMHT) Older adults 1. Experienced detention under the MHA while under services for Older Adults 2. Currently under the care of older adult community mental health services Carers / Informal supporters Aged ≥ 16 years A relative or friend of a service user who is eligible for the study Professionals Professional potentially involved in supporting the completion of ACDs (i.e., community mental health team (CMHT) staff, advocates, peer workers) SLaM professionals potentially involved in referring to ACDs (i.e., inpatient and emergency department liaison mental health staff, home treatment, place of safety and street triage staff) Approved mental health professionals (AMHPs) and Section 12 (MHA) approved doctors involved in detention. Ambulance, prison mental health and Emergency Department staff General Practitioners, including mental health leads, or other primary care professionals who care for people with SMI discharged from secondary services WP 2: Prospective study of ACD completion and use Service users All service users: accepted referral to an ACD facilitator for ACD creation Young people 1. Aged ≥ 16 2. Experienced detention under the MHA while in the care of CAMHS 3. Currently under the care of community mental health services (CAMHS / EI / CMHT/) 4. Accepted referral to an ACD facilitator for ACD creation; including participants who decline to complete and ACD after referral to an ACD facilitator. Older adults 1. Experienced detention under the MHA while under services for Older Adults 2. Currently under the care of older adult community mental health services 3. accepted referral to an ACD facilitator for ACD creation General Adult: 1. Aged ≥ 18 years 2. Previously detained under the MHA 3. Under the care of community mental health services (CMHT or EI) Forensic 1. Aged ≥ 18 years 2. Experience detention under the MHA into forensic services 3. Currently under the care of forensic mental health services Carers: relative or friend of someone referred to an ACD facilitator Professionals: SLaM staff involved in the care of a participant with an ACD whose ACD is expected to have been consulted because they were: involved in a transfer of care, placed in zoning, referred for a MHA assessment or to a home treatment team, attended an Emergency Department or Place of Safety, admitted to a psychiatric inpatient unit or imprisoned. The interviews conducted with service users and staff after the expected use event will also include questions about satisfaction with and perceived value of the process of completing, distributing, accessing, honouring, and reviewing an ACD. Exclusion Criteria: Service users Aged under 16 years Lacking capacity to provide consent and/or is unwilling to do so Currently detained under the MHA in psychiatric hospital Currently under the care of eating disorder services Carers/informal supporters Aged under 16 years Is not a relative or friend of a service user who is eligible for the study Professionals Is not a mental health professional or Section 12 (MHA) approved doctor Is not a professional involved in supporting the completion of ACDs Is not a General Practitioner or mental health lead caring for people with SMI discharged from secondary services.