My hon. Friend has brilliant eyesight, because he can see the highlighted passage I was about to read out, showing that 50% of police officers in the Metropolitan police area live outside the London boundary and commute in. The percentage for all emergency workers is probably not far off that. There is no doubt that there will be a recruitment issue in all those sectors. I have spent three and a half weeks of my life in St Thomas’ Hospital, requiring intensive care—and on not one but two occasions, because I am so accident prone. Someone may require overnight nursing care, for example, and a nurse coming into London from outside will be penalised on the day she comes in, and when she leaves her night shift she will be penalised again. She will be landed with a double whammy of a ULEZ charge—and then we are surprised that London hospitals are struggling to retain staff.

Is there evidence that ULEZ is making a dramatic difference to air quality? The evidence that has been set out in a variety of ways suggests that improvement is minimal in some respects, especially in the outer reaches. Is there an impact on the economy? Definitely: there is a negative impact. Is there an impact on public services, public sector workers and the low-income people who, according to the impact assessment, will be more affected by ULEZ expansion? There is not a shadow of a doubt that that is the case. I do not want to get too political on the last day before the Easter recess, but my hon. Friend asked what would happen in the future, and the idea that the present Mayor will not expand the impact of the ULEZ is for the birds. It is a bit like asking, “Are there moustaches in Mexico?” or “Do bears go to the toilet in the woods?” We both know that what the Mayor is proposing to do is to extend the present proposal in a variety of ways.

The key point that was made on Friday by my hon. Friend Mr French, my right hon. Friends the Members for Bexleyheath and Crayford (Sir David Evennett) and for Ashford (Damian Green), my right hon. Friend Robert Halfon—from a sedentary position—and various colleagues from Watford was that great thought should be given to the benefits of this public policy as against the massive burdens that are being imposed. We must clearly consider why we are doing this on an ongoing basis.

My hon. Friend the Member for Carshalton and Wallington remains a massive champion of this issue, and I should be delighted to see the changes that he seeks. Of course, the Rail Minister will continue to work with him, and good work is being done. We want to continue to support him and his constituents. I commend him for bringing the debate to the House before Easter, and I commend his efforts on behalf of his constituents.