1. Report to the court: the parties or lawyers can submit written report materials to the court, explaining the specific situation and evidence of fraud, and request the court to investigate and handle it;

2. Initiate criminal proceedings: if fraud is suspected of committing a crime, you can report it to the public security organ and initiate criminal proceedings;

3. Complain to the Bar Association: If a lawyer cheats, he can complain to the bar association where the lawyer is located and ask the bar association to investigate and deal with the lawyer;

4. Complain to the relevant departments: If the fraud involves notarization, identification, translation and other professional fields, you can complain to the relevant departments and ask them to investigate and deal with it.

The lawsuit requires the following materials:

1. Complaint: that is, the petition, which shall specify the petition, facts and reasons, and the required evidence;

2. Proof of identity: Both the plaintiff and the defendant need to provide proof of identity, such as identity cards and passports;

3. Relevant evidence: such as witness testimony, documentary evidence and physical evidence.

4. Legal documents: such as contracts, agreements and regulations;

5. Litigation costs: including litigation preservation fees, litigation acceptance fees and case acceptance fees;

6. Power of attorney of the entrusted agent: if applying for agency, provide the power of attorney of the lawyer.

To sum up, in the process of litigation, the parties should abide by the law and keep an honest and trustworthy attitude to ensure the justice and fairness of the case.

Legal basis:

Article 112 of the Civil Procedure Law of People's Republic of China (PRC)

Malicious collusion between the parties in an attempt to infringe upon the legitimate rights and interests of others through litigation or mediation; The people's court shall reject the request and impose fines and detention according to the seriousness of the case; If a crime is constituted, criminal responsibility shall be investigated according to law.

Article 113

The person subjected to execution colludes with others in bad faith and evades the performance of the obligations specified in legal documents through litigation, arbitration, mediation, etc. The people's court shall impose fines and detention according to the seriousness of the case; If a crime is constituted, criminal responsibility shall be investigated according to law.