THE BAIS HAVAAD HALACHA JOURNAL: Volume 5775 Issue XXXIV Parshas Korach Are DNA and Blood Tests Accepted by Bais Din? The Impact of Technology on Evidence- Part I Based on an audio presentation given By Rabbi Yaakov Rappaport

The Mishnah in Sanhedrin Daf 24B discusses many different types of people who are posel l'eidus, disqualified to bear testimony, for example, sochrei shviis, those who do business with the produce of Eretz Yisroel during the seventh year of the shmita cycle . Since these are people that do aveiros because of financial gain they are subject to a chashash of sheker. We suspect that they may be lying for financial gain and therefore we do not accept their testimony.