Plato, Laws 767c

τις ἀδικεῖσθαι καὶ βουληθῇ τῷ κοινῷ βοηθεῖν, λεκτέον ὁποῖοί τʼ εἰσὶν καὶ τίνες οἱ κριταί. πρῶτον δὴ δικαστήριον ἡμῖν γιγνέσθω κοινὸν ἅπασι τοῖς τὸ τρίτον ἀμφισβητοῦσιν ἰδιώταις πρὸς ἀλλήλους, γενόμενον τῇδέ πῃ. πάσας δὴ τὰς ἀρχάς, ὁπόσαι τε κατʼ ἐνιαυτὸν καὶ ὁπόσαι πλείω χρόνον ἄρχουσιν, ἐπειδὰν μέλλῃ νέος ἐνιαυτὸς μετὰ θερινὰς τροπὰς τῷ ἐπιόντι μηνὶ γίγνεσθαι, ταύτης τῆς ἡμέρας τῇ πρόσθεν πάντας χρὴ τοὺς ἄρχοντας συνελθεῖν εἰς ἓν ἱερὸν καὶ τὸν

and desires to succor the common weal. Who and what sort the judges are must now be explained. First, we must have a court common to all private persons who are having their third dispute with one another. It shall be formed in this way. On the day preceding the commencement of a new year of office—which commences with the month next after the summer solstice—all the officials, whether holding office for one year only or longer, shall assemble in the same temple and, after adjuring the god,