Independent, court-appointed experts told the Italian court that DNA evidence used by police in the Amanda Knox trial is inconclusive, and could have been tainted during the investigation.
The testimony could be a break in the case, which is currently being litigated in appeals court.
The international procedures for inspection, protocol and collection of evidence were not followed, the experts testified.
One cannot exclude that the results obtained could have derived from phenomena of environmental contamination and/or contamination, which could have taken place in any of the phases of the evidence gathering and/or manipulation.
During the initial police investigation, Knox's DNA was found on the a bloody knife used to kill her roommate Meredith Kercher . Additionally, DNA of Knox's then-boyfriend Raffaele Sollecito was found on a bra clasp belonging to the murdered British student. Like Knox, Sollecito was also convicted of Kercher's murder and is sitting in appeals court in Italy.
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Knox has been in Italian prison since 2009, when she was found guilty of murdering Kercher at their apartment in Perugia. Police claimed that ruled that Knox and Sollecito slit Kercher's throat in a possible drug-fuelled sexual assault. Knox and Sollecito were sentenced to 25 and 26 year prison sentences for the crime, respectively.
Click here to see photos from the Amanda Knox trial.