It's been confirmed that Dorchester Prison is to close and discussions are underway to end the lease at Dartmoor Prison.
Elsewhere, Portland's Verne Prison will be turned into an immigration detention centre.
The former Victorian military barracks, transformed into a jail more than 60 years ago, will become a Home Office immigration unit housing people waiting to be removed from the UK.
Duncan Sleightholme reports:
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Hundreds of police jobs are at risk in the region as Dorset and Devon and Cornwall forces agree to pool resources.
Ofsted unveiled a damning report today which uncovered "serious and widespread failures" when it comes to looking after vulnerable children.
A ban on growing genetically modified crops is to be lifted next week. But opponents say it could threaten the future of organic farms.