The author makes the argument that the presence of a murder law during the Roman monarchy and the absence of such a law during the republic reflects the difference in the nature of authority in these two political institutions. The centralized authority of the monarchy demanded a control over the right to kill. An act of homicide practised by another infringed upon the king's authority and so a murder law was promulgated. When the Romans expelled their kings, authority devolved onto individual patres and this decentralized leadership under the republic meant that the act of homicide was no longer a matter of concern for the state.