To ask the Scottish Executive how it defines the assessed operating limit (AOL) of a prison and what the AOL of each prison is.
I have asked Willie Pretswell, Interim Chief Executive of the Scottish Prison Service (SPS), to respond. His response is as follows:
To assist in managing the consequential risks associated with the pressure on the prison system when the prisoner population reaches defined levels in each establishment, the Assessed Operational Limit (AOL) was introduced in 2008 to establish the numerical level at which prison management assess they can safely operate the establishment in the short term.
The AOL is a dynamic risk assessment of the capacity beyond which prison management assess there to be unacceptable risks, taking into account the health and safety of both prisoners and staff, the need to deliver an acceptable regime, European Convention of Human Rights (ECHR) and other minimum requirements.
When the prisoner population is in excess of the AOL, the SPS can no longer guarantee that the continued operation of Scotland''s prisons is operationally safe or complaint with legal obligations.
The AOL for each prison is reviewed periodically as circumstances change. The current AOL for each establishment is:
Establishment | AOL |
Aberdeen | 255 |
Addiewell | 7001 |
Barlinnie | 1,600 |
Cornton Vale | 440 |
Dumfries | 216 |
Edinburgh | 960 |
Glenochil | 750 |
Greenock | 330 |
Inverness | 162 |
Kilmarnock | 5481 |
Open Estate | 5192 |
Perth | 7123 |
Peterhead | 306 |
Polmont | 837 |
Shotts | 537 |
Notes:
1. HMP Addiewell and HMP Kilmarnock figures are based on the number of Available Prisoner Places which are currently provided to SPS
2. The Open Estate AOL is subject to the availability of sufficient qualifying prisoners who meet the strict entry criteria for progression from closed to open conditions. The average prisoner population in the Open Estate during the last six months was around 240 compared with the current AOL of 519.
3. HMP Perth AOL excludes Friarton Hall which is currently closed pending consideration of its future use.