You see this is terrible and I am really sorry the happened to your son. I have friends with teenagers in London who really worry for their children, and have heard of at least one teenager they know who has been stabbed. It is absolutely apalling and is definitely an area of crime that needs to be solved. Crimes on young teenagers (often boys though of course not exclusively) are an area that does seem to be out of control particualarly in larger cities, and particularly in London
I can really see how someone saying crime is down overall feels like someone is denying this experience and I don't think it is. In fact if crime is down overall across the country, this makes it even more important that this particular type of crime is dealt with and less excuse for it not to be.
I imagine that of they are true the statistics also refer to the easier to solve crimes which whilst could be some good news, in no way negates the fact that this area of crime definitely needs to be tackled
The Government data on this defiinitely suggests the numbers and rates of knife crime in London are up here - or at least were a couple of years ago https://commonslibrary.parliament.uk/research-briefings/sn04304/
Specifically this table (table 8 in a file which can be downloaded from the above link if you can't open the excel file below) https://docs.google.com/spreadsheets/d/1Uxm_vTdVajMUc-avkp3ykc_xqTMEzIRL/edit?gid=1410319181#gid=1410319181&range=B2
This is only until 23/24 and only shows a year change between 22/23 and 23/24 but show a real rise in knife crime in different boroughs in ondon particularly in Richmond upon Thames (+c. 50% in both numbers and rate per 100,000 population) and Kingston upon Thames (+c38%) , though the numbers are still pretty low compared to other boroughs
The largest numbers are in Westminster, Lambeth and Southark, and Croydon. Croydon has seen quite a rise. They main thing though is the general increase across all boroughs. Except Islington which seems to have had a small decreasesurprisingly (-9%). The broughs with the largest numbers seem to have between 200-350 knife incidents per 100,000 population which is a tiny proportion but still way too high in my opinion
So the official data does show a real increase in knife crime in London.
Does that make you more or less likely to believe the other data from similar sources saying crime is down overall or do you only believe the numbers you agree with or that support the things that concern you?