Criterion	Description
1.	18 years or older.
2.	Capacity to provide informed consent.
3.	English speaking.
4.	Schizophrenia diagnosis (i.e. schizophrenia, schizophreniform disorder, schizoaffective disorder, delusional disorder or psychotic disorders not otherwise specified) or experiences of non-affective psychosis, confirmed by a member of the individual's mental health team.
5.	Lifetime experience of suicidal thoughts and/or behaviours. Lifetime suicidal experiences were reported by individuals who self-referred to the study themselves, or by mental health professionals who identified potential participants.
6.	Contact with a National Health Service mental health team.