First, apply to the court for transfer after filing a case.
Second, after filing a case, if you inquire in person, you need the court to issue a letter of investigation and evidence collection.
Three. If it is necessary information for filing a case, it needs to be obtained before filing a case. It is recommended to entrust a lawyer to obtain it.
Legal basis: Article 38 of the Civil Procedure Law of People's Republic of China (PRC), defense lawyers can provide legal assistance to criminal suspects during investigation; Acting as an agent for complaints and accusations; Apply for changing compulsory measures; Ask the investigation organ about the crimes and cases suspected by the criminal suspect, and put forward opinions.