The Home Office must, as a matter of urgency, update Detention Services Order 03/2017: Care and Management of Detained Individuals Refusing Food and/or Fluid, to ensure that it deals with: food and fluid refusal being clearly and directly linked to consideration of the Rule 35 process and whether a detained person is defined as an 'adult at risk'; the consideration by the healthcare provider at each immigration removal centre, upon an incidence of food and fluid refusal occurring, of assessments of mental capacity, of mental state, and under Rule 35, and the conduct of these where indicated, as well as ensuring compliance with Adults at Risk in Immigration Detention policy and making sure that decisions made in relation to these are recorded; the notification to the Home Office of the numbers of detained people refusing food and fluid, and the reasons for such refusal, on a monthly basis (in the same way that incidents of self-harm are notified); and the monitoring by the Home Office of the compliance by healthcare providers with Detention Services Order 03/2017 and the numbers of detained people refusing food and fluid, and the reasons for such refusal, in order to identify any patterns of concern and take appropriate action. The Home Office must ensure that mandatory training about the application of the updated detention services order takes place on a regular (at least annual) basis for all detention staff and healthcare staff, as well as those responsible for managing them. Attendance must be mandatory for all staff working in immigration removal centres and those responsible for managing them. The training must be subject to an assessment. In anticipation of the update to Detention Services Order 03/2017, the Home Office must issue an immediate instruction to communicate this clarification to those operating immigration detention centres.