all citizens were protected from coercion, by provocatio, which was an early form of due process. It was a precursor to habeas corpus. If any magistrate tried to use the powers of the state against a citizen, that citizen could appeal the decision of the magistrate to a tribune. In addition, once a magistrate's one-year term of office expired, he would have to wait ten years before serving in that office again. This created problems for some consuls and praetors, and these magistrates would occasionally have their imperium extended. In effect, they would retain the powers of the office (as a promagistrate), without officially holding that office. The consuls of the Roman Republic were the highest ranking ordinary magistrates. Each served for one year. They retained several elements of the former kingly regalia, such as the toga praetexta, and the fasces, which represented the power to inflict physical punishment. Consular powers included the kings' former "power to command" (imperium) and appointment of new senators. Consuls had supreme power in both civil and military matters. While in the city of Rome, the consuls were the head of the Roman government. They would preside over the senate and the assemblies. While abroad, each consul would command an army. His authority abroad would be nearly absolute. Praetors administered civil law and commanded provincial armies. Every five years, two censors were elected for an 18-month term, during which they would conduct a census. During the census, they could enroll citizens in the senate, or purge them from the senate. Aediles were officers elected to conduct domestic affairs in Rome, such as managing public games and shows. The quaestors would usually assist the consuls in Rome, and the governors in the provinces. Their duties were often financial. Since the tribunes were considered to be the embodiment of the plebeians, they were sacrosanct. Their sacrosanctity was enforced by a pledge, taken by the plebeians, to kill any person who harmed or interfered with a tribune during his term of office. It was a capital offense to harm a tribune, to disregard his veto, or to otherwise interfere with him. In times of military emergency, a dictator would be appointed for a term of six months. Constitutional government would be dissolved, and the dictator would be the absolute master of the state. When the dictator's term ended, constitutional government would be restored. Military Rome's military secured Rome's