We combined together three qualitative assessments of prison performance: Her Majesty's Chief Inspector of Prisons reports, the Area Manager reports (internal) and the reports from the Board of Visitors. For each prison, each report was assessed against 17 criteria, such as healthcare, education and race relations. Each of these assessments was then scored, where data permitted, and aggregated to give an overall assessment. A final aggregation took place across the three reports for each prison to determine whether that prison should be awarded a red indicator.