At PMQs today Harriet Harman asked about the government's plans for redrawing the constituency boundaries to even up the sizes. She particularly focused on the fact that there are lots of people (3.5 million according to her figures) who are not registered and implied that the redrawing of the boundaries would not be valid unless this was resolved. The crux of her point is here taken from Hansard:
The danger is that if the Prime Minister presses on in the way he has indicated, he will be making the system less fair, not more fair. As he said, the Deputy Prime Minister acknowledged to the House this week that there is a problem with the register. The Electoral Commission study found not just the number of people who are not on the register, but who they are: a third of all black people, half of all young people, and half of all private sector tenants are not on the register, despite the work that has been undertaken by electoral registration officers. Those people will not be counted if the Prime Minister redraws constituency boundaries now. He says he wants equal constituencies, but does he accept that he cannot have equal constituencies based on an unequal register?