וְ֠הוֹשִׁיבוּ שְׁנַ֨יִם אֲנָשִׁ֥ים בְּנֵֽי־בְלִיַּעַל֮ נֶגְדּוֹ֒ וִיעִדֻ֣הוּ לֵאמֹ֔ר בֵּרַ֥כְתָּ אֱלֹהִ֖ים וָמֶ֑לֶךְ וְהוֹצִיאֻ֥הוּ וְסִקְלֻ֖הוּ וְיָמֹֽת׃
and set two men, base fellows, before him, and let them bear witness against him, saying: Thou didst curse God and the king. And then carry him out, and stone him, that he die.’
Mishnah Sanhedrin
How do they check the witnesses? They bring them in and warn them, and then they take them out and leave behind the most important of [the witnesses]. And they would say to him: “State [for us], how do you know that this one is in debt to this one?” If he said, “He said to me, ‘I am in debt to him’, or ‘So-and-so said to me that he was in debt to him’”, he has said nothing. He must be able to say, “In our presence he acknowledged to the other one that he owed him 200 zuz.” Afterward they bring in the second witness and check him. If their words were found to agree, the judges discuss the matter. If two say, “He is not guilty” and one says, “He is guilty”, he is not guilty. If two say, “He is guilty” and one says, “He is not guilty”, he is guilty. If one says, “He is not guilty”, and one says, “He is guilty”, and even if two declared him not guilty or declared him guilty while one said, “I do not know”, they must add more judges.