The Council of Europe then tells the UK government to, basically, ignore what the Commons have decided and give prisoners the vote anyway.
Riiiiight. So apparently the fact that our democratically elected ministers have made a decision (properly debated and all) means absolutely nothing unless it's the decision that the EU wants.
For the record, if anything I'm slightly in favour of prisoners nearing the end of their sentence getting the vote. However, I don't think that should happen because the EU has browbeaten us into doing so.