I'm going to group Couzens, the bigots and the WhatsApp dead bodies society together as "rogue elements". I am not down playing the seriousness of what they did, but, Cressida Dick is not the 1st Met Commissioner to have not got a hold on rogue elements in the Met. Sadly she will not be the last who fails. The promoting of officers who have been found guilty of bullying, racism, misogyny, homophobia, dating victims of crime and so on shows an organisation, that in the main is a force of good, is consistently let down by elements who have let the power of being a police officer go to their heads. Cressida Dick has been weak or unwilling, call it what you like, to restore public trust in the Met.
Add to this the Met's flawed decision on London's party capital, Number 10, shows Sadiq Khan was right.