"Is it Time to Shut the MET down and start again"
Obviously the answer must be "Yes".
Let's start by sacking every policeman in London with immediate effect (as, in your view they, are all lying bullies) and start a process of interviewing new recruits.
This should only take about a couple of years to achieve (presumably you wouldn't want them to undergo any kind of lengthy training) and meanwhile the City could be 'looked after' by traffic wardens, perhaps?
Well thought through, that man!!