I thank my hon. Friend for highlighting that awful case, and our hearts go out to the family of those affected. The suggestion from Inspector Rich Field, my local police lead, is that it is very difficult to ban the sale of those sorts of things because, as has been pointed out, they are easily available on Amazon and eBay. The police are suggesting that it be made illegal to have possession of nitrous oxide in a public place for under 16s. What does my hon. Friend think of that idea? I hope the Minister has also noted that and will address it in his final remarks.