Answer:
The Federal Court system uses due process to make sure that each case that comes before it is properly tried and overseen by competent judges.
However, in cases of appeal by aggrieved parties who feel the decision of the court was wrong, the appealed case can get overturned if more evidence is brought to light after going through a judicial review. This usually sets good precedents that a citizen can get a decision overturned if new evidence comes to light.