1. To provide specialist psychological assessments of clients referred to the team based upon the appropriate use, interpretation and integration of complex data from a variety of sources including psychological and neuropsychological tests, self-report measures, rating scales, direct and indirect structured observations and semi-structured interviews with clients, family members and others involved in the clients care. 2. To formulate and implement plans for the formal psychological treatment and/or management of a clients mental health problems, based upon an appropriate conceptual framework of the clients problems, and employing methods based upon evidence of efficacy, across the full range of care settings. 3. To be responsible for implementing a range of psychological interventions for individuals, carers, families and groups, within and across teams employed individually and in synthesis, adjusting and refining psychological formulations drawing upon different explanatory models and maintaining a number of provisional hypotheses. 4. To evaluate and make decisions about treatment options taking into account both theoretical and therapeutic models and highly complex factors concerning historical and developmental processes that have shaped the individual, family or group. 5. To exercise autonomous professional responsibility for the assessment, treatment and discharge of clients whose problems are managed by psychologically based care plans. 6. To provide specialist psychological advice, guidance and consultation to other professionals contributing directly to clients formulation, diagnosis and treatment plan. 7. To contribute directly and indirectly to a psychologically based framework of understanding and care to the benefit of all clients of the service, across all settings and agencies serving this client group of people with severe and enduring mental health problems. 8. To undertake risk assessment and risk management for individual clients and to provide advice to other professions on psychological aspects of risk assessment and risk management. 9. To act as care coordinator, where appropriate, taking responsibility for initiating planning and review of care plans under enhanced CPA including clients, their carers, referring agents and others involved in the network of care. 10. To communicate in a skilled and sensitive manner, information concerning the assessment, formulation and treatment plans of clients under their care and to monitor progress during the course of both uni- and multi-disciplinary care, integrating the contribution of other professionals on the basis of client need. 11. To effectively draw on a variety of sources to establish care plans and treatment formulations in a context in which much data may be unavailable because of the clients inability to express themselves and because of the loss of much historical information, when early life has been extremely disrupted. 12. To be able to overcome a variety of barriers to communication when working with clients who are fearful of others, unable to articulate their problems or who think within a very different frame of reference, requiring imaginative and sensitive approaches towards engagement. 13. To provide a service that operates in a range of community settings; individual homes and hostels, community houses, inpatient units and team base requiring particular attention to issues of risk and confidentiality. 14. To manage time effectively and efficiently as a sparse resource in a context of high level demand. 15. To contribute to the teams duty system as required.