If it must be submitted, the prosecution can't help but plead guilty, and only if it thinks it is guilty will it bring a public prosecution to the court.
It is a lawyer's job to defend innocence. Only lawyers can plead not guilty.
Article 173 of the Criminal Procedure Law If a criminal suspect has no criminal facts, or has one of the circumstances specified in Article 15 of this Law, the people's procuratorate shall make a decision not to prosecute.
If the circumstances of the crime are minor and it is not necessary to sentence or exempt from punishment according to the provisions of the Criminal Law, the people's procuratorate may make a decision not to prosecute.
In cases where the people's procuratorate decides not to prosecute, the property sealed up, detained or frozen during the investigation shall be released at the same time. If the plaintiff who is sorry needs to be given administrative punishment, administrative punishment or confiscation of his illegal income, the people's procuratorate shall put forward procuratorial opinions and transfer them to the relevant competent authorities for handling. The relevant competent authorities shall promptly notify the people's procuratorate of the results.