My hon. Friend is right to point to Dr Nicholl’s work, and I thank him again for his campaigning on this issue, without which we possibly
would not be here today taking this legislation through Parliament. The evidence we have seen about the neurological damage caused in particular by large-scale consumption of nitrous oxide is very worrying. Neurological units around the country have seen cases of people who have been paralysed and suffered really quite serious consequences. The numbers are not enormous, but they are extremely worrying, and the severe cases, including paralysis, are deeply concerning. I agree completely with what my hon. Friend just said.