Crime in London is centre stage again, as the mayoral race gets well and truly under way. The two main parties both have their statistics and narratives to prove whatever point they want to make (which is depressing to watch), because the one thing which, whatever way you want to paint it, is just unacceptable is knife crime in the capital.
On this issue the current Mayor and his team will have you believe that the numbers have never been lower, and his Conservative opponent will have you think the opposite.
