The blue hoodie was collected on Dec 18. Wouldn't you like to argue that because it was not collected on Nov 2, the DNA from Rudy was a result of contamination ... or ... is it only contamination when it's Raffaele's DNA on the bra clasp?
"The blue-coloured sweatshirt, exhibit [reperto] 171, had been collected as well during the course of the second search, the one carried out on December 18 and the sample collected from one of the cuffs, identified by the letter B, had revealed the genetic profile of the victim and the chromosome Y of Rudy Hermann Guede (page 101 hearing May 22, 2009 statements of Dr. Stefanoni)."
pg 198; Judge's summary