What I wonder is why Gen. Garafano, the man the Sun called 'Italy's CSI' dude, doesn't understand the process for proving for blood. It's actually pretty simple and logical. Luminol is the most sensitive detector of blood there is, it's also easy to use--just spray it down and turn out the lights. It glows in the dark where there might be blood, very cool!
Then find the spots that light up and test them with TMB, after all there's about 250 items that can be typically found in households that will light up and not be blood, including some that will display the same chemiluminescence pattern as undiluted blood. The TMB test is easy and can be done on-scene, kinda like a pregnancy test; they don't want to waste the lab tech's time, and this process should eliminate about half of all hits according to Dr. Gino in Massei. Then the lab looks at it under the scope and confirms it's human blood, and DNA tests are done to identify it. That's how you prove for blood.
What I don't quite understand is how a forensics expert could review a team that sprayed down the luminol, saw that the footprints tested negative for TMB, but the lab tried to hide those results in court, never bothered with the confirmatory test or successfully hid those results, and that all but one or so of the footprints tested negative for Meredith's DNA. Being as there were no control tests reported that means the one that did show Meredith's DNA might have been part of the floor beneath it and not the footprint.
If I had a nasty suspicious mind I'd think ILE was trying to pretend those footprints actually were blood when they knew they couldn't prove it, and that the footprints probably weren't related to the murder. Why is it that Gen Garofano didn't notice this? I couldn't help but note that his name came up as having assisted Mignini in the Monster of Florence case. Naturally most sane people were trying to oppose the double body-swap nonsense, but not Garofano...
Incidentally, General Garofano has a unique theory of the murder, he had it published in the Sun early last fall. There's only one other place I've heard that theory echoed, and that's in articles written by John Kercher for the Mail, Mirror and Times.
I wonder if Garofano told him a 'load of crap?'