Section 3. Aims and methodology    a review of the separation documents for children who had been separated a review of the YOI’s separation policies and procedures a review of the use of separation in the 12 months before the inspection. Table 2: Interviews and case files review at inspections Interviews with children HMYOI Cookham Wood HMYOI Feltham A HMYOI Parc HMYOI Werrington HMYOI Wetherby and Keppel Review of case files 12 Interviews with member of staff 1 10 7 14 7 7 6 10 11 10 12 13 11 11 3.7 We conducted semi-structured interviews with 48 children who had been separated. The interviews covered their experience of being separated within the establishment – including the circumstances that led to their separation, their conditions while separated, their daily regime, treatment by staff, and experience of reviews and reintegration planning. 3.8 We conducted semi-structured interviews with 37 operational and professional staff involved in the supervision and care of separated children. These included unit managers, operational staff, health care staff and managers, Barnardo’s case workers, Kinetics (education outreach) staff, Independent Monitoring Board (IMB), education staff and managers, prison chaplains and psychology staff. The interviews were aimed at understanding the experiences of staff in supporting and caring for children who had been separated. 3.9 We analysed the case files for each of the young people interviewed to investigate the processes for the separation to be authorised, what contact children had with professionals, separation reviews and reintegration planning. 3.10 We also examined individual establishment policies governing the use of separation, and analysed monitoring data on the use of separation for the 12 months before the inspection. 3.11 All data from interviews with prisoners and staff were summarised in a spreadsheet and coded. Judgements were then made about how the establishment performed against the expectations that we had developed for this review (see below and Appendix II). To avoid identifying individuals quoted in this report, we have not ascribed their establishments. Expectations 3.12 15 20 For our core inspection programme, HMI Prisons inspects against independent human rightsbased criteria known as Expectations.15 Our expectations describe the standards of treatment HMI Prisons (2018). Expectations: Criteria for assessing the treatment of children and conditions in prisons. London: HMI Prisons. Available at <http://www.justiceinspectorates.gov.uk/hmiprisons/our-expectations/children-and-young-peopleexpectations/> accessed 24 October 2019. Separation of children in young offender institutions