The new statistics, from London’s Metropolitan Police force, shows there was a fall in all cases of knife crime successfully investigated in the capital last year, as the number of recorded attacks shot up.
The so-called “sanction-detection rate” for knife robbery crimes, those that end in some form of sanction or conviction, has been falling since 2015, with Mr. Khan taking over in early 2016.
In 2015, 32 percent of cases of violence against the person involved a knife was acted on, dropping to 27 percent in 2016, and 23 percent in 2017, a Freedom of Information request by Conservative London Assembly Members (AM) revealed.