A case citator is a legal research tool which allows you to:
They allow you to determine if your case is still good law.
It's important to research the judicial history of a case to ascertain whether the case has been overruled by subsequent cases or it is still being used.
If you cannot access the full-text of an authorised version in one case citator, try another one. For example, the full-text of CLR (the most authoritative report of High Court decisions) will be available in FirstPoint.