jury from England after 1789. We are not concerned here with the many complex questions which arise in attempting to explain the development of the grand jury and the petty jury on English soil. The outstanding fact is that we owe the judge-and-jury system to the Romans. One of the most extraordinary features of their judicial system was the fact that the Romans had no permanent public prosecutor. The bringing of criminal actions under the republic was left to private initiative, but there seem to have been enough ambitious politicians to prosecute cases, at least those cases which were likely to bring distinction to the successful prosecutor. Indeed on some occasions the praetor, before beginning a trial, was obliged to give a preliminary hearing to several lawyers who claimed the distinction of bringing the charge against the accused party. The merits and defects of such a system are obvious. Charges were likely to be pushed with vigor, because the reputation of an advocate depended on securing a conviction, and sometimes a patriotic citizen prosecuted a powerful politician when a public prosecutor would have hesitated to do so. But on the whole the plan did not work well. This was especially true when there was a political element in the case. In such circumstances the charge was usually brought by a political opponent, or what was worse still, a political supporter might put the defendant on trial and secure an acquittal, before a real prosecution could take place. Before being allowed to undertake the prosecution of Verres, the venal and tyrannical governor of Sicily, Cicero had to convince the presiding praetor that his claim to the right of conducting the case was better than that of Quintus Caecilius Niger, who had been quaestor of Verres, and hoped to secure the acquittal of his former superior. Such cases of collusion between the prosecutor and the defendant became so common, that a heavy penalty was imposed on those found guilty of it. Even under the empire, when the senate began to hear certain important cases, there was no permanent public prosecutor, but the senate designated members of its own body to conduct the prosecution and the defence. In these trials the senate functioned as a jury, and the presiding consul, as a judge. As the emperor gained a greater control of public affairs, it was not unnatural that he should take over criminal jurisdiction in important cases or delegate it to his prefects. When this point was reached, probably the prosecution of criminal actions was assumed more definitely by the state.