After hasty and unfair legal proceedings, Knox served almost four years in prison.
Miss Knox was also harassed by fellow prisoners - a bisexual roommate kissed her on the lips and tried to convince her to have an affair.
Amanda Knox is an American woman who grew up in Seattle.
Amanda Knox - accused of killing Meredith Kercher - has been portrayed as a blameless girl led astray when she moved to Italy.
The judges rule that they can be held for up to a year while the case is investigated.
Both were sent to the elite Seattle Preparatory School where many of the city's most famous sons and daughters, including the current mayor, had gone.