Govt. enforces its edicts via force, deadly force. Ultimately all laws are enforced at the muzzle of a gun.
Dr. Higgs makes the point here better than I could.
Four Types of Government Operatives: Bullies, Muggers, Sneak Thieves, and Con Men: The Independent Institute: Unlike the sincere street criminal, however, the robber in official guise rarely puts his proposition to you in the blunt form of “your money or your life,” however much he intends to relate to you on precisely such terms. (If you doubt my characterization of these intentions, test what happens if you steadfastly resist at every step as the brigands escalate their threats: first ordering you to pay, then billing you for unpaid balances plus penalties and interest, sending you a summons, and ultimately beating you into submission or killing you for resisting arrest. Your sustained, open resistance always ends in the state’s use of violence against you, in either your forcible imprisonment or your removal from the land of the living, after which your memory will be defamed by your designation as a criminal—governments never settle for mere brutality, but always supplement it with unabashed presumptuousness.)