My brother has an AS Criminal Justice and a BS in Criminology. He is a full-time police officer in Colorado. I think he makes in the neighorhood of $50,000 plus decent pension and bennies.
He was making about $10,000/year more for another PD but it was high crime, big city politics, blacks crying police brutality every time they got caught breaking the law and finding some Johnny Cochran willing to file a complaint and a lawsuit (sorry, its the truth), the Mayor catering to the lowest common denominator of the community because that's who elects him, etc.
So he took a job in a nicer (smaller) community for less pay and doesn't regret a minute of it.