At the risk of seemingly taking Vixen's side on this, the Italian system seems to be built on skepticism that a prosecution can get things right.
Raffaele and Amanda had three evidentiary trials and 2 appeals to Cassazione, one which overturned an acquittal and the other which overturned a conviction.
All the while - as us descendants of "English"-style law always have a hard time dealing with - these five trials were, by Italian law, really only one trial. For instance, the concept of double jeopardy exists in Italy, but not until Cassazione signs off on a lower court verdict, or substitutes its own verdict for what the lower court should have found (based on the evidence in front of it).
As unwieldy as all that sounds, and as much as it actually does drag both accused - and victim's family - through the mire of uncertainty often for a decade or more.....
..... at the end of the day that system worked for Raffaele and Amanda.
There seem to be two kinds of judges in Italy.
- those who favour the old Inquisitorial system who expect defendants to prove their innocence; or
- those who favour the transition to the Adversarial system where the prosecution has to prove them guilty.
Raffaele and Amanda "lucked out" in the sense that the Hellmann Appeal's Court and the 5th Chambers of Cassazione contained judges who favoured the latter.
The Italian system as it exists today will eventually (because of its multi-trial format) expose the case to a panel which will want the accused proven guilty - not force the accused to prove their innocence.
Indeed, the 5th Chamber's criticism of Nencini's court on its statement that TOD was not important, was that without establishing a TOD the accuseds were deprived of an ability to have an alibi. The failure of establishing a TOD falls squarely at the feet of incompetent investigators; Mignini even admitted that his only (!) mistake was not allowing the coroner to take body temperature at a time when TOD could have been narrowed greatly.
Having the 5th Chambers focus on that issue demonstrates it was looking for proof of the accuseds' guilt, and didn't need the accused to prove their innocence since BARD had not been achieved.
So is Italy's system weighted towards the accused? I would hope it was! Otherwise, why not just throw the accused into a lake and if they sink and drown, they are deemed innocent.