Since Dowly is a Finnish ferret he will be interned in the Subsim UK prison, here is some documentary footage of life within the prison:
Security details:
http://uk.youtube.com/watch?v=lkwmPYWRBPQ
Day release scheme:
http://uk.youtube.com/watch?v=TmysAzR1oGU
Medical facilities:
http://uk.youtube.com/watch?v=FD2d6n5oWUc