Sarah Everard killer Wayne Couzens worked as parliamentary guard

Questions mount over vetting of former Met officer, who had access to Houses of Commons and Lords

The Metropolitan police officer who raped and murdered Sarah Everard guarded parliament five times, it has emerged, as a senior Conservative criticised the force for appearing to have overlooked" warning signs about his behaviour.

Wayne Couzens, 48, worked in the parliamentary and diplomatic protection command and finished a shift guarding the US embassy hours before he carried out a false arrest of Everard on 3 March and abducted her.