Plato, Laws 937a

ἀπομόσας ἦ μὴν μὴ εἰδέναι ἀπαλλαττέσθω τῆς δίκης· ὁ δʼ εἰς μαρτυρίαν κληθείς, μὴ ἀπαντῶν δὲ τῷ καλεσαμένῳ, τῆς βλάβης ὑπόδικος ἔστω κατὰ νόμον. ἐὰν δέ τίς τινα δικάζοντα ἀναστήσηται μάρτυρα, μαρτυρήσας μὴ διαψηφιζέσθω περὶ ταύτης τῆς δίκης. γυναικὶ δʼ ἐξέστω ἐλευθέρᾳ μαρτυρεῖν καὶ συνηγορεῖν, ἐὰν ὑπὲρ τετταράκοντα ἔτη ᾖ γεγονυῖα, καὶ δίκην λαγχάνειν, ἐὰν ἄνανδρος ᾖ· ζῶντος δὲ ἀνδρὸς ἐξέστω μαρτυρῆσαι μόνον. δούλῃ δὲ καὶ δούλῳ καὶ παιδὶ φόνου

and this done, he shall be dismissed from the suit. And if a man summoned as witness does not attend with his summoner, he shall be legally liable to be sued for damages. And if one of the judges be summoned as a witness, he shall not vote at the trial after giving evidence. A free woman, if she be over forty years old, shall be allowed to give evidence to support a plea, and if she have no husband, she shall be allowed to bring an action; but if she have a husband alive,