Judicial precedent is being followed.
Explanation:
During the court proceedings the advocate’s will cite the previous judgement for authenticating the case which is fit for examination. While citing the case which is of similar in nature of incidence the advocate will cite this for pronouncement of judgement in their favour.
So, in their petition they will quote the date and year of the judgement and synopsis of the judgement to support their claim. So, the state or federal court judges with his previous ruling will award the judgement using this judicial precedent.