2. Evidence exchange is a necessary stage of trial preparation procedure, and its purpose is to make the information of both parties open and transparent, and finally achieve the purpose of fair trial. The exchange of evidence is only an open step. During the trial, the judge will also arrange for both parties to cross-examine the evidence. Evidence with no probative force or insufficient probative force may be invalid.
3. Although the exchange of evidence is necessary, the law does not stipulate that the exchange of evidence is legal and effective. As long as the evidence is recognized by both parties in court, it is legal and valid. We can avoid a small amount of evidence that affects the direction of the case in evidence exchange and then take it out in court, but we must ensure that these evidence can pass the cross-examination smoothly. And you should claim that you got the evidence after exchanging it, otherwise you will face the problem of procedural violations.
4. As for your witness, the procedure of exchanging evidence is as follows: submit the witness's application to appear in court within the statutory time limit, make a transcript of your witness's testimony and submit it to the court. The record should include your witness's name, age, political outlook, family situation, address, work unit and position, litigation status, etc. The written record should clearly and methodically reflect the proved facts in the form of words, and write the witness's autograph or fingerprint at the end.