Institutio Oratoria

Doubts may be raised as to whether the mover is legally in a position to propose a law, as happened in the case of Publius Clodius, whose appointment as tribune of the plebs was alleged to be unconstitutional. [*]( Clodius was a patrician and got himself made a plebeian by adoption to enable him to hold the tribunate. The question of the legality of this procedure is discussed by Cicero in the de Domo, 13–17. ) Or the legality of the proposal itself may be impugned in various ways; it may for instance be urged that the law was not promulgated within seventeen [*]( Lit. within the space of three market-days. nundinum =9 days, the second market-day being the ninth, and forming the last day of the first nundinum and the first of the second. Similarly the third market-day is the last day of the second nundinum and the first of the third. ) days, or was proposed, or is being proposed on an improper day, or in defiance of the tribunicial veto or the auspices or any other legal obstacle, or again that it is contrary to some existing law.

But such points are not suitable to elementary rhetorical exercises, which are not concerned with persons, times or particular cases. Other subjects, whether the dispute be real or fictitious, are generally treated on the following lines.

The fault must lie either in the words or the matter. As regards the words, the question will be whether they are sufficiently clear or contain some ambiguity, and as regards the matter whether the law is consistent with itself or should be retrospective or apply to special individuals. The point however which is most commonly raised is the question whether the law is right or expedient.