JERUSALEM, Israel - A team of Israel Police National Fraud Unit detectives will head to the U.S. next week to gather additional evidence in the 'Olmerttours' case, also known as the Rishon Tours multiple-billing affair, against former Prime Minister Ehud Olmert.

Though police said they had sufficient evidence for an indictment when they turned over the file to the State Prosecutor's Office, Attorney General Menachem (Meni) Mazuz has postponed a decision in the case.

The investigation involves multiple billing of public institutions by Rishon Tours for Olmert's trips abroad, which began when he was mayor of Jerusalem and continued during his tenure as industry, trade and labor minister in the Sharon government.

Police believe Olmert used the excess funds to finance trips and vacations for his family.

Olmert's legal team and his personal media consultant, Amir Dan, were quick to criticize next week's trip, claiming that the investigation should have stopped when the file was turned over a month and a half ago.

Source: Haaretz