Welfare Reform Bill

My Lords, I thank the Minister for his explanation of these amendments, which I think I understand and accept. I wondered at first when I saw them whether we had done something to upset Treasury Ministers, and they no longer wanted to come before us. To be clear, we have provisions in here relating to tax which we are simply moving out of the Bill because they are going to go back in a Finance Act. If they remained in the Bill in their current form, would that in any way invalidate them? There might be a procedural issue that has gone awry in this case, but I am still a little unclear as to why it is necessary in the event. Given that those provisions are there, why they could not remain? More importantly, I am anxious that if these provisions come out of this Bill, there is certainty that they will end up in a Finance Bill. Can the Minister give us any assurance as to which Bill that is likely to be and what processes, given the oversight that we dealt with a couple of Committee sittings ago, there are in place to make sure that these are followed through and put into effect?