- Last year, prosecutors filed a motion to appeal against the acquittals, calling the verdicts "contradictory and illogical"
- Italy's top appeal court examined whether there were irregularities which gave grounds for a retrial, rather than assessing the details of the case
- Knox returned to her Seattle-area home after she was released from prison in Italy and had been scheduled to speak publicly about the trial for the first time on American television in April
- The new trial will be held before a court in Florence
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Another cold, frosty and foggy night for many. Northern and western areas will see thickening cloud, patchy rain and milder temperatures.
Temperatures have already plunged to -12C in some parts of the UK this winter - but Thursday could be the coldest day yet.