According to the provisions of the Civil Procedure Law, a party who refuses to accept the judgment of the local people's court of first instance has the right to appeal to the people's court at the next higher level within 15 days from the date when the judgment is served.
No matter how many people sign a letter, it has no legal effect. Joint petitions are mostly documents submitted to the relevant departments in writing by third parties unrelated to the case in order to express their wishes through legal channels. It is a way for the masses to express their attitudes. The content of the complaint only shows the impression that the parties (including the defendant or the victim) usually leave on others, but the most important basis for the court's decision is the facts and evidence of the case itself. Legally speaking, the joint petition is only a general expression of public opinion, even a few expressions of public opinion, which have no legal effect and cannot be used as the basis for the court to convict, but only as a reference for the people's court when sentencing.
Legal basis: Article 165 of the Civil Procedure Law of People's Republic of China (PRC). If a party refuses to accept the judgment of the local people's court of first instance, he has the right to appeal to the people's court at the next higher level within 15 days from the date when the judgment is served.
If a party refuses to accept the ruling of the local people's court of first instance, he has the right to appeal to the people's court at the next higher level within 10 days from the date when the ruling is served.