Bureau of Prisons: Improvements Needed in Bureau of Prisons' Monitoring and Evaluation of Impact of Segregated Housing, Report to Congressional Requesters [open pdf - 4MB]
"BOP [Bureau of Prisons] confines about 7 percent of its 217,000 inmates in segregated housing units for about 23 hours a day. Inmates are held in SHUs [Special Housing Units], SMUs [Special Management Units], and ADX [Administrative Maximum]. GAO [Government Accountability Office] was asked to review BOP's segregated housing unit practices. This report addresses, among other things: (1) the trends in BOP's segregated housing population, (2) the extent to which BOP centrally monitors how prisons apply segregated housing policies, and (3) the extent to which BOP assessed the impact of segregated housing on institutional safety and inmates. GAO analyzed BOP's policies for compliance and analyzed population trends from fiscal year 2008 through February 2013. GAO visited six federal prisons selected for different segregated housing units and security levels, and reviewed 61 inmate case files and 45 monitoring reports. The results are not generalizable, but provide information on segregated housing units. […] GAO recommends that BOP (1) develop ADX-specific monitoring requirements; (2) develop a plan that clarifies how BOP will address documentation concerns GAO identified, through the new software program; (3) ensure that any current study to assess segregated housing also includes reviews of its impact on institutional safety; and (4) assess the impact of long-term segregation. BOP agreed with these recommendations and reported it would take actions to address them."
Government Accountability Office: http://www.gao.gov/