Absolutely there are great cops. One of the best I knew was actually a JW that was wrestling with his career the whole time. I was struck by how this guy, doing such an honorable job has to constantly question himself in the congregation.
And yes even MP's can be alright sometime. I have to admit policing a predominantly 18-24 year old male population that is used to hard living and hard partying has to be one of the toughest jobs in the world. I would dread almost every call I got becuase at least one individual involved was very well trained in the use of weapons, more than likely had direct experience with using said weapons, and more than likely an aggresive alpha male type personality.
To deal with that on a constant basis has to give a bit of a complex.