I think you paint the picture with too wide a brush. All cops are not bad. That makes as much sense as saying "if a person works for a company and gets caught stealing, then everyone who works there is a thief." One bad apply does not spoil the whole bunch. It sounds like you have had dealings with law enforcement before, and have a chip on your shoulder because you were in the wrong and not willing to admit it. It's always easier to make the other person the "boogie man".