Today, in addition to the judiciary and courts of justice, there are authorities under the headings of council, board, commission, etc., which according to special laws deal with some complaints and disputes and lawsuits, one side of which means the government, and like courts of justice in nature Issue a verdict and a judicial opinion. These authorities, which are often supervised by the executive branch and are created with the claim that the issues are specialized, complex and technical, with the aim of accuracy, speed and accuracy of the final decision, both in accordance with some constitutional principles and ordinary laws and regulations. The ruling intellect, logic and custom are obliged to issue their final opinions and opinions in a reasoned, justified and documented manner to the laws, principles and legal rules. Otherwise, the Court of Administrative Justice, as the reviewing authority of such opinions, will not give them legal validity and legal existence in order for the rule of law and the realization of rights or annulment. In the present article, with regard to examples of opinions issued by quasi-judicial authorities and the Court of Administrative Justice, the above issue is examined and analyzed.