Around here (Bulgaria) policemen have a really bad rep and I must say it's hardly undeserved. First of all most of the people who enroll in the police academy, are those who didn't succeed (or even try) at some university. The rest are bullies who want to go on bullying their way through life. They don't receive a good education (unlike the military) as the emphasis is on physical training. After graduating from pretty much the same mold, they get to the stations where attitudes, unofficial workplace codes and ways of doing your job have been passed down for decades since communist times. The idea that everyone else is a bad guy and no one holds the police accountable has been the reason for many cases of police brutality (only here the media usualy won't make a peep about it), general ignorance, utter arrogance, disgusting mutual ass-covery, corruption of a grand scale on all levels and 30-year-old stereotypes. And I'm not some bitter wronged-as-a-kid trashtalker. Technically I've never had trouble with the police (one broken up party an one put-your-hands-on-the-car "routine check" because of long hair, leather trenchcoat and black KISS make-up

). Recently the police commissioned a pop singer to write a song in their praise/defense. Something done by former soviet countries, including mine, before they were former in praise of manifacturing plants and the like. Also now twice I have seen normal people arrested like some most-wanted-list felons and the police, and consequently the media, have portrayed them as devils incarnate. It made me think of all the other announcements of successful operations and great busts and how they could be only loosely based on truth. And how many drug dealers roam the parks while these PR stunts are pulling the wool over our eyes.
That being said, I acknowledge the need for police and the fact that without it it would be utter chaos or martial law, since there are a lot of people that would like just that. For every "I'm bored, let's routine check us some fines" there's an actual criminal cought. There may very well be smart, clean cops who only want to "serve and protect" and not "bully into fearful submission". While the system is broken and the raw material is of the poorest quality, I still prefer uniforms patrolling instead of gangs.
PS: Oh, yes. I forgot - police fail to set a personal example of how to behave. From throwing cigarette buds on the street to saying "it may be the law, but I'm not gonna do it". Though the last statement was also herd from an important MP regarding the smoking ban.