According to the law, a judge's judgment is a legal document, and must abide by legal procedures and regulations, and make a fair and legal ruling strictly based on facts and evidence. If a judge conceals facts or evidence in the judgment, or makes a judgment in violation of the procedural provisions, it may constitute a procedural violation and damage the legitimate rights and interests of the parties.

In the case you mentioned, if the judge's judgment conceals some key facts, such as the forged signature and the admission of forged time that the factory agent thinks, then this behavior may be regarded as a violation of procedure, because these facts may have a significant impact on the judgment. If the parties object to these key facts, the court shall conduct strict investigation and review during the trial, and explain and express them in the judgment.

The parties may apply for reconsideration or appeal, request a retrial of the case, evaluate the legality of the judge's judgment, and appeal to a higher court. If a judge is found to have violated the law, the parties concerned may request to cancel the judgment and investigate the responsibility of the relevant judge. At the same time, for the judge's behavior, you can also report complaints to relevant departments to safeguard judicial justice and the legitimate rights and interests of the parties.