We are always open to consulting with police forces around the country, including Police Scotland and, of course, the Police Service of Northern Ireland, to ensure that we are quickly picking up those trends, as the hon. Member says.

We heard some discussions around the online sale of knives. The Online Safety Act 2023 passed through Parliament last October. When it is fully commenced—Ofcom is currently consulting on the codes of practice to implement that—it will impose obligations for the first time on social media platforms and online marketplaces, such as Facebook Marketplace, to ensure that they are applying the law to take proactive steps to ensure that, for example, under-18s cannot buy knives online. The Criminal Justice Bill, currently going through Parliament, will increase the penalty for selling a knife to an under-18 to up to two years. The Online Safety Act, which I worked on with my right hon. Friend Damian Hinds when he was Security Minister, will do a great deal to prevent the sale of knives online.

We heard some discussion around prevention, which is critical. That is why the 20 violence reduction units up and down the country are receiving about £55 million of funding a year. Next year we will increase that by 50%, and that 50% increase in funding will ensure that those preventative interventions are made. It will fund things like mentoring schemes, cognitive behavioural therapy, diversionary sporting activity and so on to ensure that young people at risk of getting on to the wrong path can be helped. We are doing that in partnership with the Youth Endowment Fund, which has £200 million to invest. The fund researches which interventions actually work, because some interventions sound like they might work but in fact have no impact. I was discussing those interventions with the fund’s chief executive Jon Yates just a few hours ago.

A new initiative that we will be pioneering with the Youth Endowment Fund this autumn is a piece of work starting off in four local authorities, but I hope it will be expanded to all local authorities, to identify in each area the 100 young people at risk of getting into serious violence. That is not youngsters who are already involved in serious violence, who are being supported already, but younger people, maybe in their early teens, who are at risk of getting into serious violence and where we can make an early intervention to stop them ending up on that path. If the pilots in the four local authorities are successful, as I think they will be, part of the extra violence reduction unit funding that I mentioned could support its roll-out nationally, which I would certainly like to see.

The prevention, the bans, the Online Safety Act 2023 and the violence reduction units are all preventive measures, but we also need proper enforcement action. That includes the use of stop and search, which I have not heard mentioned so far this afternoon. Stop and search is important. In London it used to take 400 knives a month off the street, but in London the use of stop and search has gone down by 44% over the last two years, whereas in the rest of the country it has been maintained. It might be no coincidence that knife offences in London have gone up at the same time as stop and search has gone down, which bucks the national trend.

I was very pleased that the commissioner, Sir Mark Rowley, said that he would increase the use of stop and search—done, of course, lawfully and respectfully— because it does take knives off the streets and save lives. Victims’ families have said to me, “I wish the person that killed my child”—typically a young man—“had been stopped and searched before my son was murdered.” So stop and search is an important tool that needs to be used.

To support that, we are developing new technology. It is not ready to deploy yet, but I hope it will be ready to deploy experimentally by the end of this year. It is technology that allows police officers to scan someone at a distance of, say, 10 or 20 feet—perhaps the distance that we are standing apart now—and detect a knife in a crowded street, enabling officers to identify and remove knives from the people carrying them. We are investing about £3.5 million to expedite the development of that technology. I saw it demonstrated last week. It is not quite ready to deploy, but it is very close. As soon as it is ready, I want it to be trialled. I will certainly volunteer Croydon, the borough that I represent—