I wonder if that was a BBC radio station-known as they are for their non-biased view?
Regardless of where you heard it though, I wonder who compiled the figures? Could it have been a body with a vested interest in saying knife crime is down?
Still wondering, I wonder how the figures used were manipulated in order to come up with a fact that many people find unbelievable?
I think the best thing to do is ignore such surveys, unless two bodies from opposite sides of the spectrum agree them.
I certainly wouldn't believe any figures put forward or "verified" by the BBC 😂or without seeing who had published the survey and if they had a vested interest or indeed, without knowing how they had come to their conclusion.
For example, maybe they have decided to omit attacks carried out with a blade but not actually a knife. Who knows but it usually pays to be not quite so gullible.