My Lords, I support the amendment in the name of my noble friend on the Front Bench. At this juncture, I also thank the Committee for its forbearance when I was not able to move my previous amendment on mobile phone theft. I put on record my warmest thanks to my noble friend Lady Neville-Rolfe for moving it so eloquently on that occasion.
This is an issue about the difference between “serious violence” and “violence”, but the wider context is the fact that the UK has a knife crime problem. In London, the number of incidents up to June 2025 was 15,639, which was an increase of nearly 72% from the data recorded in 2015-16. Unfortunately, it has to be said that the number of stop and search encounters peaked at the end of the last Labour Government and dramatically decreased under the two previous Governments. Between 2003 and 2011, stop and search numbers increased, peaking at 1.2 million, but by 2018 this had fallen by 77%. The number of arrests resulting from stop and search encounters had fallen from 120,000 to 48,000.
The fact is that there is significant evidence that stop and search does demonstrably have an impact on the incidence of knife crime, and therefore reduces crime. In a study released in 2025, the two criminologists Alexis Piquero and Lawrence Sherman analysed data between 2008 and 2023, and found that stop and search encounters were successful in reducing deaths and injuries related to weapons. The conclusion of the study was that
“increased stop and search encounters can significantly reduce knife-related injuries and homicides in public places”.
Evidence from a number of bodies and think tanks, including Policy Exchange, suggests that, while there may be a range of causal factors, a link between rates of knife crime and rates of stop and search exists. As the rate of stop and search decreases, the amount of knife crime increases. As stop and search rises, the amount of knife crime falls. The Chief Constable of Greater Manchester, Sir Stephen Watson, said last year: