The author asks this question:
Is there any clear principle – from a political or legal perspective – that underpins this division of responsibility?Yes. The Labour party must simultaneously grant Scotland a certain degree of devolution but at the same time make sure that it doesn't develop into Independence. The Tories and the SNP don't have this problem. The Labour party needs to ride its trick cycle 24 hours a day, seven days a week and never fall off. One day it will.