Why do the police not examine their behaviour because it is they who have the problems, it is they who have lost the respect of the public. They would do well to smarten up, provide razors to make sure the army are more presentable, reduce the number of bouncers and provide lessons on basic courtesy and how to address members of the public.
I recently received a voting form for the local police boss which I declined to complete in deference to a lady pushed over by a police thug in Norwich.
Respect is earnt but easily lost, its part of the police role to recover it.