Police recommended Tuesday evening that Israel Tax Authority (ITA) head Jacky Matza stand trial, along with his predecessor Eitan Rub, Prime Minister Ehud Olmert's longtime personal assistant Shula Zaken and her brother, Yoram Karshi in the ongoing ITA bribery scandal. Matza and Rub are suspected of accepting a bribe from Karshi in exchange for political appointments in the authority and tax breaks for private businessmen. Police suspect that Zaken arranged jobs in the ITA in return for tax breaks for her brother. Karshi, a Likud member of the Jerusalem City Council, is suspected of using his ties to ITA officials and his sister to influence appointments in the authority. Earlier Tuesday, Police questioned Olmert for four hours as a witness in the ongoing investigation into the Tax Authority irregularities. Olmert was questioned by members of the National Fraud Squad which was charged with investing the bribery allegations. Police emphasized Tuesday that the prime minister was not a suspect in the case. He was questioned regarding the appointment of Matza, which was okayed by Olmert, and also regarding Zaken.