Scotland Bill

I am listening carefully to the hon. Gentleman’s argument. It is clear that amendment 89, which is in his name and the names of his colleagues, would enable the Scottish Parliament, at some stage, to legislate to allow for those powers to be drawn down, either in part or whole. What timescale does he envisage for the Scottish Parliament to move to full fiscal autonomy, rather than, perhaps, partial fiscal autonomy? What does he envisage being the interim arrangements were it to draw down only some of those powers?