Judicial oratory had become a significant literary genre by the second half of the fifth century, as represented in the speeches of Demosthenes' predecessors, Antiphon and Andocides. Logographers were a unique aspect of the Athenian justice system: evidence for a case was compiled by a magistrate in a preliminary hearing and litigants could present it as they pleased within set speeches; however, witnesses and documents were popularly mistrusted (since they could be secured by force or bribery), there was little cross-examination during the trial, there were no instructions to the jury from a judge, no conferencing between jurists before voting, the juries were huge (typically between 201 and 501 members), cases depended largely on questions of probable motive, and notions of natural justice were felt to take precedence over written law—conditions that favoured artfully constructed speeches.* H. Yunis, "Demosthenes: On The Crown", 263 (note 275).</ref>