Mayor of London Sadiq Khan has challenged Metropolitan Police chief Dame Cressida Dick to achieve a "cultural change" within the force that willl "get rid of officers who may be racist, sexists, misogynistic and homophobic." <br /> <br />He also urged her to "restore trust" in the police service. Report by Guzzardib. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
