Plato, Laws 871d

ἐξηγητῶν καὶ μάντεων καὶ τοῦ θεοῦ νομοθετησάμενοι, τὰς δίκας εἰσαγόντων ταύτας. δικαστὰς δὲ αὐτῶν εἶναι τοὺς αὐτοὺς οὕσπερ τοῖς τὰ ἱερὰ συλῶσιν διαδικάζειν ἐρρήθη κυρίως· ὁ δὲ ὀφλὼν θανάτῳ ζημιούσθω καὶ μὴ ἐν τῇ τοῦ παθόντος χώρᾳ θαπτέσθω, ἀναιδείας ἕνεκα πρὸς τῷ ἀσεβεῖν. φυγὼν δὲ καὶ μὴ ʼθελήσας κρίσιν ὑποσχεῖν φευγέτω ἀειφυγίαν· ἐὰν δέ τις ἐπιβῇ που τῶν τῆς τοῦ φονευθέντος χώρας, ὁ προστυχὼν πρῶτος τῶν οἰκείων τοῦ ἀποθανόντος

and so they shall bring these prosecutions. And the judges in these cases shall be the same persons who form—as we described—the final court of trial for robbers of temples. He that is convicted shall be punished by death, and he shall not be buried in the land of the victim, because of the shamelessness as well as impiety of his act. If the culprit flees and refuses to come up for judgment, he shall be exiled with an unending exile; and if any such person sets foot in the country of the murdered man, he of the dead man’s relatives or of the citizens that first meets with him