Drop nuclear warheads all over the Middle East till the whole place becomes a wasteland filled with radiation, instantly killing all terrorists even underground
The chief executive officers of the Roman Republic were the consuls and praetors. Two consuls were chosen annually and they administered the government and led the Roman army into battle.
On 366 BC, a new office was created , that of the praetor. The praetor could govern Rome when the consuls were away from the city and could also lead armies. The praetor's primary function however was the execution of justice. He was in charge of the civil law as it applied to Roman citizens.
In general, it was the local and state governments that enforced these laws during this time, since the federal government lacked practically all powers to intervene in the states' affairs.