Capital punishment in traditional Jewish law has been defined in Codes of Jewish law dating back to medieval times, based on a system of oral laws contained in the Babylonian and Jerusalem Talmud, the primary source being the Hebrew Bible. In traditional Jewish law there are four types of capital punishment: a) stoning, b) burning by ingesting molten lead, c) strangling, and d) beheading, each being the punishment for specific offences. Except in special cases where a king can issue the death penalty, capital punishment in Jewish law cannot be decreed upon a person unless there were a minimum of twenty-three judges (Sanhedrin) adjudicating in that person's trial who, by a majority vote, gave the death sentence, and where there had been at least two competent witnesses who testified before the court that they had seen the litigant commit the offence. Even so, capital punishment does not begin in Jewish law until the court adjudicating in this case had issued the death sentence from a specific place (formerly, the Chamber of Hewn Stone) on the Temple Mount in the city of Jerusalem.