http://www.ojp.usdoj.gov/bjs/lawenf.htm
There are over 850,000 LEO's in America. I make it 3.5 to one.
That “raw” number includes all LEO. I would bet, based on about thirty years of “casual” conversation that: 1) Many of the nominal LEO’s such as park rangers, “door shakers”, CBP officers, US Fish & Wildlife officers, prison guards, , etc., would not be deployed and/or could not be deployed and/or are completely ill prepared and 2) Many, if not most local LEO’s would simply not turn on the public in the manner one might expect from the Feebies and BATFE.