Apollodorus Against Stephanus, Charged with False Testimony II (4)

If, now, he maintains that it was a challenge and not a deposition, he is not telling the truth. For all pieces of evidence which the parties to a suit bring before the court when they tender challenges to one another, they bring in by means of depositions. Otherwise you would not know whether what they severally say is true or false, if they did not bring forward the witnesses also. But when they do bring in witnesses, you rely upon these as being responsible, and so from the statements and the testimony offered you cast your votes for what seems to you to be a just verdict.