As both Justice McLellan and Angus Stewart pointed out, Australia has a legal concept known as misprision which requires all citizens to report any criminal activity to the proper authorities.
Vincent Toole claimed to not know about that particular law and how it applied. He also said that he believed that mandatory reporting laws somehow over-ruled the concept of misprision (never mind that he contradicted himself in saying that).
Even still, there are states in Australia that do have mandatory reporting laws and yet not one of the 1,006 known abusers in Australia were ever reported to the authorities by JW elders. Not one!