Legal basis: some provisions on evidence in civil proceedings
Eighteenth parties and their agents ad litem shall submit a written application to the people's court for investigation and evidence collection. The application shall state the name, unit name, domicile and other basic information of the person under investigation, the contents of evidence to be investigated and collected, the reasons to be investigated and collected by the people's court and the facts to be proved.
Article 19 the parties and their agents ad litem shall apply to the people's court for investigation and collection of evidence seven days before the expiration of the time limit for adducing evidence. When the people's court rejects the application of the parties and their agents ad litem, it shall serve a notice on the parties and their agents ad litem. The parties and their agents ad litem may, within three days from the day after receiving the notice, apply in writing to the people's court that accepted the application for reconsideration. The people's court shall make a reply within five days from the date of receiving the application for reconsideration.