1. To collect quantitative and qualitative data from telepsychiatry interviews with prisoners combined with simultaneous face to face ratings of subjects to assess the reliability of assessments of psychopathology using audio-visual facility and determine usefulness of and satisfaction with the service from the perspective of the patient, psychiatrist and prison staff.    2. To complete a health economic analysis to compare the costs of the telepsychiatry service with the exisiting service provided by visiting forensic psychiatrists.