In the recent White Paper, Working Together to Improve Health and Social Care for All,15 the Government set out its ambition for every part of England to be covered by an Integrated Care System. NHS England and NHS Improvement is developing guidance to support Integrated Care Systems to fulfil their responsibilities for the continuity of care pathways of the prison population. This will encompass the needs of the prison population both pre and post custody. It is also intended that the interface between prison healthcare, the parole board and preparation to ensure continuity of care upon release will be incorporated into the review of the mental health service specification.