Growth and Infrastructure Bill

My Lords, we are full of admiration for the way the noble Viscount seeks to defend these proposals before the House. However, I am afraid that I find myself with the noble Lord, Lord Deben, who said that this was a mystifying moment in a mystifying Bill. The mystification gets greater the longer the Government seek to defend the proposal, and does so in three respects. The first is the figure of 6,000, which is in the impact assessment and which the Minister has undertaken to write to noble Lords to defend. However, I have read the impact assessment and the figure appears to be simply plucked out of the air. There seems to be no justification whatever for a figure of 6,000, as opposed to—