"Are we not supposed to be governed by and follow The Rule of Law in Australia?"
You are the one who is not following the Rule of Law, viz. letting the appropriate authority to do its job without you shouting from the sidelines telling it what should be done.
Your motive is political based.
Directors of Public Prosecution are there for a very important reason: they are independent, they will do what is necessary and required to uphold the Rule of Law.
Just because what has happened so far has not met your political objective does not mean the Rule of Law has not been observed.
Stop banging the political drums from the sideline.
