Shula Zaken, Olmert's most loyal confidante for 30 years, took the stand at Jerusalem's District Court and detailed how Olmert allegedly kept cash collected from contributors for the personal use of him and his family. The highlight of the hearing was the playing of recordings Zaken made of conversations with Olmert, in which he details money transactions and pleads with her not to take the stand against him.
Olmert was forced to resign as prime minister in 2009 amid a flurry of corruption allegations.
The two have since had a falling out, with Zaken coming forward with new information shortly before both of them were convicted earlier this year in a separate real estate bribery case.
Olmert was convicted in March in a wide-ranging case that accused him of accepting bribes to promote a controversial real-estate project in Jerusalem. He was charged for acts while he was mayor of Jerusalem and national trade minister, years before he became prime minister.