Legal analysis: 1. The collusion of lawyers is suspected of causing the defender and litigation agent to destroy evidence, fabricate evidence, and obstruct testimony.
2. Sentence to fixed-term imprisonment of not more than three years or criminal detention.
3. If the circumstances are serious, the offender shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years.
Legal basis: Article 306 of the Criminal Law of the People's Republic of China
During the course of criminal proceedings, a defender or litigation agent destroys or falsifies evidence, or assists a party in destroying or fabricating evidence. Anyone who fabricates evidence, or threatens or induces witnesses to change their testimony contrary to the 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, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years. If the witness testimony or other evidence provided, presented or cited by the defender or agent ad litem is inaccurate and is not intentionally forged, it does not constitute the crime of forging evidence.