Legal analysis: it is a good thing to hold a second trial. If a criminal case is tried in the second instance, the defendant and his legal adviser can better defend it and reduce the possibility of misjudged cases. Secondly, in the second instance of a criminal case, the people's court will not aggravate the sentence, but will only lighten the punishment or uphold the original judgment. If the people's court of second instance considers that there is no mistake in the judgment of the court of first instance and there is sufficient factual evidence, it may reject the appeal or send it back to the court of first instance for retrial.
Legal basis: Article 189th of the Criminal Procedure Law of People's Republic of China (PRC). When the people's court hears a case of public prosecution, the people's procuratorate shall send personnel to appear in court to support the public prosecution.