We'll just have to agree to disagree on how getting a 4 year degree (especially with such a broad range in the quality of education) proves that you're more intelligent than someone who, for example, went into the military after H.S., and served 4 years there. However, it also goes the other way around.
The military (for example) does a decent (though certainly NOT perfect) job of breaking down the various skill sets they need and scoring them individually, as to better put people into fields they're better in. Though there are PLENTY of dummies in the military, there is a notable absence of them in certain fields, (I will use aviation as an example, as I'm familiar with it) because of the more strict requirements, but a college degree isn't one of those.
I agree with this, but I don't think a college degree is the right hurdle to present in a career field such as this. Maybe RatLabGuy knows of tests to measure the amount of "common sense" a person has?
IMO, the skill sets required to be a cop do not align 1-for-1 with the skill sets required to graduate college. Other careers (Medical, for example), would seem to align more closely, and I would agree that I want to see MD behind the name of a guy who's gonna cut me open and operate.