Clearly you're not aware of the corruption in the small town government and justice system. If your neighbor is a friend of cop and they don't like you, plenty of cops are willing to put you through harassment and plenty of PDs, local prosecutors and judges who are willing to turn a blind eye towards it.

Essentially, unless you believe every single cop is pure at heart and incapable of making a mistake, you should be wanting a presence of more than just 1 cop.