Scotland Bill

For the sake of clarity, the Minister tells my hon. Friend the Member for Warrington South (David Mowat) that the decision on whether there will be a toll on the Forth road bridge is a devolved matter, and yet also says that any Scottish Government borrowing would be included in the British national debt. How can that toll be a devolved matter? The UK is involved in keeping the cost of funds to the Scottish Government down so that they can afford to fund a bridge that people in England are unable to afford without charging a toll.