Prison Service Orders (PSOs)
There are a number of rules, regulations and guidelines by which prisons are run. These are outlined in Prison Service Instructions (PSIs) and Prison Service Orders (PSOs). PSOs were issued until 31 July 2009.
They are long-term mandatory instructions which are intended to last indefinitely and as such do not have an expiry date. PSOs remain in force until replaced by a PSI or cancelled. The published PSO Numerical index confirms which PSOs have been cancelled or replaced by a PSI.
PSO Numerical Index (PDF 0.14mb)
Subject Index (PDF 0.13mb)
1700 - segregation (Zip 3mb)4445 - civil partnerships