In mental health there are a lot of different roles of different agencies and professionals within the assessments, both of these are for the protection of the service user and service provisions these include mental health services which are set up and run by the NHS organisations as well as some voluntary sectors there are also private companies which are paid for by or commissioned by the NHS. A local GP should be able to recognise a service users symptoms and diagnose the service users symptoms of mental health or psychosis then they should refer the service user to an intervention service were they will then be assessed. These assessments will then be carried out on the service user, which will then provide them with the right services