Is amanda knox still dating raffaele
Police geneticist, Patrizia Stefanoni, swabbed spots on the blade of the knife and on the handle in the knife’s first DNA Test.
One spot in particular attracted her attention: a visible scratch on the flat of the blade.
The swab taken from this scratch yielded a positive ID for Meredith Kercher.
By the third trial, when a new attempt was made to collect DNA from the knife (which had been swabbed again during the appeal trial, though no tests were then conducted) there was no match to Meredith – a result welcomed by Knox's defence team, though it did not in fact impact on the findings of the first trial.
The usual defence explanation for mixed DNA stains in the bathroom and corridor, namely that the house would have been coated in Amanda’s DNA given that she lived there, does not necessarily apply to a flatmate’s bedroom.
It is much harder to leave traces of DNA than is commonly conceived, and hardly any of Amanda's DNA was found in her own room - where she surely spent a lot more time than in her flatmate's. Days after the murder, a large kitchen knife was seized in Raffaele’s flat, where Meredith had never set foot.
Ms Knox, then a 20-year-old student, was arrested alongside her boyfriend Raffaele Sollecito after Ms Kercher's was found fatally stabbed in her bedroom in 2007.
The verdict handed down yesterday at the new appeal trial for Amanda Knox and her former Italian boyfriend, Raffaele Sollecito, accused of the murder of British citizen Meredith Kercher in Italy in November 2007, may come as a surprise to those whose view of the case has been affected by an international media blitz based on the oft-repeated claim “There is no evidence”.There, it was tested and found to contain a large sample of Meredith’s DNA, together with a smaller but clearly visible contribution from Sollecito.The defence objections: firstly, between the two searches, objects in the crime room had been moved around, and indeed the bra clasp was found about a metre away from its original position.Secondly, apart from ‘alleles’ - genetic traces - of Meredith and Sollecito on the clasp, there were a few unidentifiable extra ones.Putting these two facts together, the defence pointed out that Sollecito’s DNA on the bra clasp could have been a consequence of a careless police technician stepping on Sollecito’s DNA elsewhere in the flat and then entering the room and stepping on the bra clasp, even though no DNA of Sollecito was found anywhere else in the house except on a single cigarette butt in the ashtray. Although not visible to the naked eye, the chemical Luminol which flashes blue on contact with blood revealed a spot in the room of the flatmate whose window had been smashed and room rifled.