This shard of glass shows that someone was in the murder room
after being in the room with the broken window. Since the prosecution's contention is that the break-in was allegedly "staged" as the last act before leaving the scene, how does this become evidence against the 2 students?
... and the Hellmann court upheld them, supported by the Conti-Vecchiotti report
which remains valid evidence. Why do you continue to appeal to the Massei and Nencini conclusions? All court decisions have been annulled, and those supporting your POV now have the same status as Hellmann.
In any case, have you actually viewed the video of the bra clasp collection by investigators? It's here, on YouTube:
https://www.youtube.com/watch?v=UMaTI0SiuLw
If anything is "staged", then this is it. Judging by their antics, the team clearly know in advance what significance will be attached to this item. What's all this shining a flashlight on it and peering at it? Can they see DNA with their own eyes? Why do they put it back on the floor to photograph it, when it has already been moved from its original location?
Finally, they are handling it, right there, on video with
dirty gloves. Contamination event, right there on camera. This is enough to make it completely worthless as evidence.
Firstly, an unidentified woman's shoeprint is not evidence against Amanda, specifically. Secondly, the Massei conclusions have been annulled. We will see whether the ISC considers the partial shoeprint of Guede's to be indicative of Amanda.
You only have to look at the bra clasp video referenced above. When the Italian police forensics team use methods that are manifestly improper, then yes, I will believe real forensic experts who point out that there is no genuine evidence.
So, not impartial then.
I have seen Rinaldi's blatant pseudo-science, trying to pin the bath-mat print to Raffaele. If that isn't corrupt, then I don't know what is.