95% of knife crime isn't 'black on black'. Don't fall for the lazy stereotype. Studies show knife crime is correlated with poverty - not with ethnicity. I accept that a in London black people are often the poorest, but even within that context. Things are changing, probably getting worse, but if you look at youth crime figures in the last decade white perpetrators were responsible for at least 50% of knife crime, and black youth less than 25%. 95% is Richard Littlejohn lazy.