First of all, in the prosecution or filing a defense, in the list of evidence catalog, it should be written witness testimony, submit a copy of the witness testimony and witnesses mailing address, household registration certificate, contact information and so on. So that the court before the hearing to notify the witnesses to testify in court, to be cross-examined.
Witness testimony: I XXX, in X years X month X day, witnessed XXXX situation (mainly will be the description of the situation), the above testimony is true.
Witness: XXX X year X month X day
Witness testimony is in principle to appear in court to accept the examination.
What else is not clear can give me a message