Pension Schemes Bill

I wonder whether the Minister can help me. It seems to me that there is potentially a difference with behavioural change which is incidental to the fundamental policy issue. However, here we are talking about a system where the change and the data underlying the tax issues are absolutely fundamental—it is what the whole policy change is about. Just to be clear on that, the Budget Red Book for 2014 refers to extra tax in 2015-16 of £320 million, £600 million the year after, £910 million the year after that and £1.2 billion the year after that. I think we understand that work has been done on those figures and that the Office for Budget Responsibility has accepted them as realistic. However, as I understand it, the Government are not going to tell us the basis on which those figures have been derived. They are not going to give us the opportunity to make any judgment as to whether, ultimately, we support the policy.