Legal analysis: What department should the criminal complaint be submitted to: 1. Complaint. A complaint must be submitted, and the complaint can be written by the complainant himself, or a lawyer or other person can be asked to write on his behalf. However, the petition shall state the basic information, contact information, facts and reasons of the complaint. 2, the original first and second instance judgments, rulings and other legal documents. After review or retrial by the people's court, the notice of rejection, retrial decision, retrial judgment and ruling shall be attached. 3. Other relevant materials. If there is new evidence to prove that the facts identified in the original judgment or ruling are indeed wrong, it shall be accompanied by relevant evidential materials; An application for investigation and evidence collection by a people's court shall be accompanied by relevant clues. If the complaint does not meet the requirements, the people's court shall inform the complainant of the supplementary materials; If the complainant refuses to supplement the materials without justifiable reasons, he will not be examined. To sum up, a criminal complaint shall be submitted to the people's court, together with the complaint, and the relevant annexes shall be submitted. Such as the judgment or ruling of the first and second instance, the notice of rejection of the appeal, etc. Complaints should have legal basis and factual basis, and unreasonable demands should not be made, and the office order of the organs should not be disturbed. Complaints should be made step by step according to the procedures prescribed by law.

legal basis: article 296 of the criminal procedure law, the people's courts at all levels shall register and carefully examine and deal with the complaints lodged by the parties concerned, their legal representatives and their close relatives against the legally effective judgments and rulings.

article 297 of the criminal procedure law. after examination, the people's court shall treat the complaint that does not conform to the provisions of article 23 of the criminal procedure law as a letter or a visit.

article 298 of the criminal procedure law generally accepts and examines appeals by the people's court that has made a legally effective judgment or ruling. If a person directly appeals to a people's court at a higher level, the people's court at a higher level may refer the case to the people's court for examination and inform the complainant if it has not been examined and dealt with by the people's court that has made a legally effective judgment or ruling; If the case is difficult, complicated or significant, or the people's court that has made a legally effective judgment or ruling still insists on appealing, the people's court at a higher level may directly accept and examine it, and the people's court at a lower level may also request to be transferred to the people's court at a higher level for examination and handling.