Questione giuridica chiave
Whether the later psychiatric expertise constituted a new and decisive ground for revision under Art. 137 let. b OJ.
Decisione estratta
The expertise was not a new proof within the meaning of the revision rules; it only offered a later assessment of already known facts and did not show objectively defective factual bases in the prior judgment.
Motivazione estratta
Revision requires newly discovered important facts or conclusive evidence that could not have been invoked earlier. A later expert opinion is insufficient when it merely reassesses known facts. The report did not establish that psychiatric impairment existed before the contested administrative decision with the necessary certainty.