Legal basis: Article 306 of the Criminal Law of People's Republic of China (PRC). In criminal proceedings, defenders and agents ad litem who destroy or falsify evidence, help the parties to destroy or falsify evidence, threaten or induce witnesses to change their testimony of facts or commit perjury shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention; If the circumstances are serious, they shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years. Witness testimony or other evidence provided, presented or quoted by defenders or agents ad litem is inaccurate, not intentionally forged, and does not belong to forged evidence.