The Irish Prison Service has its own fleet of around sixty vehicles for prisoner transport, since 2005 run by the Prison Service Escorts Corps (PSEC). These are vehicles specially equipped or adapted for prisoner transport, the larger ones having a number of individual cells.
Note that though the Irish Prison Service vehicles have no blue lights and deed a police escort for “emergency” runs, nearly all are equipped with white strobe lights at a low level. You can spot them if you look closely.
Prisoner transport van based on 1997 Citroen van, with blue lightbars, for low-risk prisoners (simple conversion with blacked-out and reinforced windows):
Prisoner transport van based on 2007 Iveco van – note escape hatches on roof and two discreet strobe lights left and right of the Iveco logo:
Specially Converted Vehicles on Van Chassis
Specially Converted Vehicles on Truck Chassis