Acquittal does not mean innocent (nor does it mean Pell didn't commit the crimes), it just means the case wasn't proven beyond a reasonable doubt.

So you can presume all you like, it doesn't make it so.


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Acquittal

Definition

At the end of a criminal trial, a finding by a judge or jury that a defendant is not guilty. An acquittal signifies that a prosecutor failed to prove his or her case beyond a reasonable doubt, not that a defendant is innocent. Thus, a person may be acquitted of a crime but found civilly liable in a civil case regarding that same crime, e.g. O.J. Simpson, because civil cases have a lower burden of proof than criminal cases.

https://www.law.cornell.edu/wex/acquittal