If there is an error in the application of the law, or the sentence is inappropriate, or the original judgment is unclear about the facts and lacks evidence, the second-instance judgment rate of criminal cases may be as high as 100%. However, the specific actual reduction in sentence must be judged based on factors such as the facts of the crime, whether the applicable law is correct, and whether the sentencing is appropriate.
Legal objectivity:
Article 237 of the Criminal Procedure Law of the People's Republic of China In cases where relatives appeal, the defendant's sentence may not be increased. The people's court of second instance may not increase the defendant's punishment unless there are new criminal facts and the people's procuratorate makes a supplementary prosecution. If the People's Procuratorate files a protest or the private prosecutor files an appeal, it shall not be subject to the restrictions in the preceding paragraph. The judgments and rulings of the second instance in Article 244 of the Criminal Procedure Law of the People's Republic of China and the judgments and rulings of the Supreme People's Court are final.