Article 111 of the Civil Procedure Law stipulates that if a litigant participant or other person forges or destroys important evidence and hinders the people's court from hearing a case, the people's court may impose a fine or detention according to the seriousness of the case; If a crime is constituted, criminal responsibility shall be investigated according to law.
Article 306 of the Criminal Procedure Law stipulates that 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.
Those who help to destroy or forge evidence in major cases, important evidence, multiple evidence, multiple parties and serious consequences, can all be considered as serious.
So, if you have proof, call the police.