Met Police Chief Sir Mark Rowley has said it is "crazy" that he is unable to sack "toxic" officers who have broken the law but also admitted vetting procedures have been inadequate.
The force's Commissioner has said that "there are some very worrying cases" of officers who've committed crimes and yet he is unable to fire them, adding: "It's crazy."
Appearing on the BBC's Today programme, he was questioned about a report that revealed 150 officers were under investigation over allegations of sexual misconduct or racism.