Vixen
Penultimate Amazing
Paragraph 1 seems to include verdicts that are other than not guilty. Such things as no crime was committed, or a crime was committed and the accused did commit the action but there was a defence such as self defence, or the accused is innocent beyond doubt (e.g. the wrong 'John Smith' being arrested). Paragraph 2 is the not guilty verdict that would normally be returned. My guess is that para 1 verdicts will be unusual only occurring in special circumstances.
No, it is not "normal". The Supreme Court never uses this, for it is a lower court jurisdiction.
530 para 2 was used by the Supreme Court for Andreotti (a mafia case), who had actually been initially found not guilty - unlike the kids - by a lower court (overturned on appeal).
The common link is Bongiorno, advocate in both cases, and nothing at all to do with correct due process.