There were prosecutions in '82. Paolo Rossi was the most high-profile. He was found not guilty. I suppose its hard to jail a guy who scores 3 vs Brazil. If a club the size of Juve is certain to be relegated (possibly 2 divisions), the evidence must be overwhelming.
Having said that, if these guys lose to the Aussies, jail is probably the safest place for them.
Materazzi sent of..
Apparently for a sideburn violation,