Knife crimes? If only we could be so lucky! The story is here.
For all the panic about rising knife violence in London, let's keep in mind that London has 7.3 million people and about 160 murders a year. That's fewer than New York City. Hell, it's even fewer than Baltimore (population: 650,000)! And it's not that London has a low crime rate. It just has less lethal violence.
London does have strong and effective gun control. Sure, you can kill somebody with a knife, but it's a lot messier.