Still there yet remained some shadow of a free state. A contest arose between Vibullius, the prætor, and Antistius, a tribune of the people; for the tribune had ordered the release of some disorderly applauders of certain actors, whom the prætor had imprisoned. The Senate approved the imprisonment, and censured the presumption of Antistius. Tribunes were also forbidden to usurp the authority of prætors and consuls, or to summon from any part of Italy persons liable to legal proceedings. It was further proposed by Lucius Piso, consul-elect, that tribunes were not to try any case in their own houses, that a fine imposed by them was not to be entered on the public books by the officials of the exchequer, till four months had expired, and that in the meantime appeals were to be allowed, which the consuls were to decide. Restrictions were also put on the powers of the aediles and a limit fixed to the amount of bail or penalty which curule and plebeian aediles could respectively exact. On this, Helvidius Priscus, a tribune of the people, followed up a personal quarrel he had with Obultronius Sabinus, one of the officials of the exchequer, by insinuating that he stretched his right of confiscation with merciless rigour against the poor. The emperor then transferred the charge of the public accounts from these officers to the commissioners.