Zane , 7 months ago

More details here.

Basically she had written in her diary about her enduring feelings of guilt over the deaths of her children, which is what formed the base of the original case against her. Prosecutors argued that the children were probably smothered, despite there being no physical evidence for that.

A recent enquiry heard new evidence that at least 2 of her children carried a genetic defect that could potentially have caused their deaths, which coupled with the circumstancial nature of the evidence used in the original conviction was enough the NSW governor to pardon her under reasonable doubt. That pardon lead to a trial in the criminal court of appeals which have now acquitted her of the charges.