State witness Nir Hefetz, who served as media advisor to Benjamin Netanyahu, took the stand at the Jerusalem District Court on Monday in the former prime minister's corruption trial. KAN reporter Naomi Segal asked Prof. Oded Mudrik a retired vice president of the Tel Aviv district court, a current law professor at Ariel University  and special advisor to the AYR law office, and a past member of Netanyahu's defense team if Hefetz's testimony can provide critical proof of the allegations against Netanyahu.