The "Police", who are supposed to "protect and serve" are, of course required to do neither, according to a variety of court rulings and precedents. Their only responsibilities, according to the "Law", are to investigate crime, provide evidence to the local prosecutors, arrest suspects (nominally with a warrant when there is sufficient evidence of guilt – however, in today’s world, they can arrest anyone they please, without the pretext of a warrant) and, of course, increase local government revenue.
On July 4th we are supposed to celebrate our independence. Unfortunately, Independence died many years ago and was replaced by a totalitarian state (run by Republicans and Democrats – they only differ in how they wish to enslave you). It is now enforced, not by the local, friendly constables, but by paramilitary thug squads, beholding only to the government – not the people, bent on terror and extreme displays of machismo.