I guess the issue is most people never have any direct positive experience with the police, do not know what they are doing aside from moaning about traffic, noise, whatever...
The only experience I have with the cops is them stopping me and wasting 15 minutes of my time, making me use a breathalyser, spend 5 minutes going over all my documents then letting me go after realizing they can't do me for anything.
And of course the highway robbers I see hiding in the bushes every couple of days trying to catch some poor naive or blind sod returning from work 5kph faster than allowed.
I have little faith the police will do anything useful if I for example report someone scratched my car or if they nick my bike or whatever.
I do appreciate they do a lot of good things I don't see and I certainly realize it'd be **** without them, but, around here, they could show people more they are actually fighting to stop crime rather than small infractions, it'd help a lot.
Another example is at work, I had a shift on the platform where all the trucks unload etc, one motor cop arrived and sat at the entrance, checking over EVERY single truck/lorry that arrived for 15-20 minutes ( as in 15 mins per truck), causing massive delays and overwork... Needless to say half the truck drivers weren't pleased, they referred to him as '' DIRTY SS-er'' or ''****ing nazi'' once they were past... I don't blame them if some cop goes to that kind of trouble to meet his (fines) quotum.