The Egyptian Court system is composed of a number of tiers: Courts of First Instance, Courtof Appeal, and the CourtofCassation at the apex of the judiciary.
Italy's CourtofCassation ruled that an appeals court in Florence must re-hear the case against the American student and her former Italian boyfriend for the murder of 21-year-old Meredith Kercher.
The 76-year-old already faces a four-year prison sentence and five-year ban from public office for a fraud conviction, which he is expected to appeal against in Italy's highest court, the CourtofCassation.
The CourtofCassation also ruled that five senior Italian secret service agents - including the former head of the country's military intelligence agency - should be tried for their role in the kidnapping.
Both it and his appeal against a tax fraud conviction have been delayed until after the CourtofCassation in Rome decides on whether to allow them to be transferred from the northern city of Brescia to Milan.