I believe the hon. member is referring to the certified normal accommodation (CNA), which is the uncrowded capacity.
The CNA for each prison in Kent, excluding Dover, which holds immigration detainees, and the population for each prison, as at 4 June 2007, is set out in the following table. The total population figure includes temporary approved absences.
Prison CNA Total population Blantyre House 122 121 Canterbury 196 277 Cookham Wood 137 182 East Sutton Park 98 98 Elmley 753 986 Maidstone 559 584 Rochester 392 390 Standford Hill 464 432 Swaleside 756 779 Total 3,477 3,849