Powers over policing, railways and teachers' pay could all be devolved to the Welsh government in a new deal based on Scottish devolution.

The all-party Silk Commission proposed that police and youth justice powers be handed over immediately, while other justice powers are transferred over the next 10 years.

It would be part of a move to a "reserved powers" model of devolution, currently used in Scotland, which would see Welsh ministers decide on all matters only affecting Wales.