Your own government in fact does not trust you or any other Londoner with anything more dangerous than a blunt butter knife.
You are forbidden from carrying even a sharp blade on your person in public.
So in fact you are talking about yourself there.
"Knife Crime" is such a totally absurd concept. What's next, cricket bat crime?
The rioters were bashing in people's heads with whatever was at hand, even though it's against the law to do so.
Maybe you should have taken a walk and explained to them to their faces that they were daft cunts? You could always use a blunt butter knife to defend yourself, I believe that is still legal in Britain.