A 16-year-old stabbed to death in a park over a petty fight, another butchered on a train in broad daylight: How knife crime has flourished on Sadiq Khan's watch is exposed in HARRIET SERGEANT'S shocking three-part series
London is in the grip of a knife-crime epidemic. Last year, there were some 14,500 knife crimes recorded in London - almost 40 a day - up from nearly 11,500 in the previous year.