over again was that it had meredith's dna on the blade and -- >> if a spoon was taken from your kitchen drawer and tested by the same techniques that the spoon would be shown to have on meredith kircher's dna on it. it really was pseudo-science. >> the second piece of evidence was meredith's bra clasp found at the crime scene allegedly carrying raffaele's dna. >> so they went back in some 40 some days after the original crime scene investigation and brought back that bra clasp. >> didn't collect it for, like, six weeks? they kick it around the room and kept picking it up with the same gloves and putting it down. >> the defense tried to challenge the dna test done on the knife and the bra clip, but the prosecution argued that all testing had been done correctly. the judge agreed, and disallowed additional testing. sdoo they refused to have independent experts look at any of the scientific evidence, so all you could go by was what the police wanted to show you.