Legal basis:
The Chinese People's **** and National Civil Procedure Law
Article 76 The parties may apply to the people's court for an appraisal on the specialization of ascertaining the facts. The parties to apply for appraisal, by the parties to determine the qualifications of the appraiser consultation fails, the people's court shall designate. The parties did not apply for appraisal, the people's court on specialized issues that need to be appraised, shall entrust qualified appraisers for appraisal.
Article 77 of the appraiser has the right to know the case materials needed for identification, if necessary, can ask the parties, witnesses. Appraisers shall make a written appraisal, in the appraisal of the signature or seal.
Article 78 of the parties to the identification of objections or the people's court that it is necessary to appraise the appraiser, the appraiser shall testify in court. Notified by the people's court, the appraiser refuses to testify, the appraisal shall not be used as the basis for determining the facts of the appraisal fee paid by the party may request the return of the appraisal fee.
Article 79 of the parties may apply to the people's court to notify the people's court has specialized knowledge of the appraisal of the appraisal made by the appraiser or professional advice.
Article 80 investigation of physical evidence or scene, the investigator must show the people's court documents, and invite the local grass-roots organizations or the party's unit to send someone to participate. The parties or adult family members of the parties shall be present, refused to be present, does not affect the investigation. The relevant units and individuals shall be obliged to protect the scene and assist in the work of the survey in accordance with the notice of the people's court. The investigator shall investigate the situation and results of the production of transcripts, signed or sealed by the investigator, the parties and invited participants.