During the period 12 October to 22 December, Operation Safeguard was used on around 4,500 occasions. These figures do not correspond precisely to the number of prisoners, as some prisoners may have been held in police cells for more than one night. Prisoners can also be held in “lockouts” under an informal agreement with police forces.
From 22 December 2006 to 22 January 2007, during which Operation Safeguard was deactivated, the number of prisoners accommodated in police cells overnight varied on a daily basis and was dependent on court activity and the management of regional prison population pressures. Operation Safeguard was reactivated on 22 January.
Police forces submit their costs in arrears and the cost cannot yet be calculated.