Legal analysis: Whether the sentence will be reduced on appeal in criminal cases depends on whether the evidence of the first-instance judgment is sufficient and whether the legal adaptation is correct. legal basis: article 227 of the criminal procedure law of People's Republic of China (PRC). If the people's court of second instance finds that the trial of the people's court of first instance violates one of the following legal procedures, it shall make a ruling to revoke the original judgment and send it back to the people's court that originally tried it for a new trial:
(1) Violating the provisions of this Law on public trial;
(2) Violating the challenge system;
(3) depriving or restricting the legal litigation rights of the parties, which may affect the fair trial;
(4) The composition of the trial organization is illegal;
(5) Other lawsuits that violate the law and may affect a fair trial.