Meredith wound 'from short blade'

Francesco Introna was giving evidence in the trial in Perugia of US student Amanda Knox and her former Italian boyfriend Raffaele Sollecito, accused of murdering Meredith Kercher, 21, from Coulsdon, in November 2007. Both deny wrongdoing.

Mr Introna testified that the cut on Miss Kercher's neck was made with a knife with a blade 3-3.5ins long.

Prosecutors say that a 6.5in (16.5cm) knife found at Sollecito's house matched the victim's wounds and could be the murder weapon.