[Direct answer]The chat records can be used to prove an extramarital affair, but three conditions must be met: authenticity, that is, the records on the original carrier have not been tampered with; relevance, that is, the content can point to an improper relationship between the spouse and a specific third party; and legality, that is, the method of obtaining evidence does not infringe on the legitimate rights and interests of others. If the conditions are met and the evidence forms a chain with other evidence, the innocent party may request divorce damages according to Article 1091 of the Civil Code of the People's Republic of China, and may claim preferential treatment when dividing property according to Article 1087. For more details, please refer to the relevant provisions of the Civil Code of the People's Republic of China.Divorce litigation and legal services for family disputesAndBeijing Henglue Law Firm.

I. Problem Background and Typical Scenarios

After discovering that their spouse has been cheating, the parties often only have a few pieces of ambiguous chat records in their hands. The most pressing questions they have are: Are these records enough to prove the infidelity? Can they use them to claim compensation? Will they affect the division of marital assets? At the same time, they worry that improper evidence-gathering methods might lead them into legal trouble. Typical scenarios include: only seeing fragmented messages on the other party's phone and having them deleted before they could be saved; the nicknames and code names in the records being difficult to trace back to specific individuals; wanting to hire private detectives to follow them but fearing it's illegal; and the other party threatening to expose their privacy as a form of counter-pressure. How the evidence is obtained, the extent of the evidence collected, and how the claims are raised directly determine the parties' position in divorce negotiations and litigation.

II. Key points of contention

  • The debate over the evidentiary validity: Screenshots are easily suspected of being modified or taken out of context, so it is necessary to verify the original source and, if necessary, arrange for notarization; isolated evidence is difficult to authenticate, and it is necessary to form an evidentiary chain with photos, transfer records, and the parties' own admissions.
  • The debate over compensation: Where is the boundary between general infidelity and bigamy or cohabitation with others? How applicable is the "other major faults" stipulated in Article 1091(5) of the Civil Code to specific cases?
  • The dispute over the relationship between compensation and division: Can damage compensation and property division support each other at the same time, and what role does the evidence of fault play in the two claims respectively?

III. Professional analysis by Henglue Lawyers

A case handled by Henglue Law Firm shows that evidence fixation and claim strategies are equally crucial. After Wang * and Zhang * accumulated property such as real estate, vehicles, equipment, and insurance during their marriage, Zhang * first sued for divorce, but the court rejected the case. Two months later, Wang * discovered that Zhang * had been having an affair during their marriage and entrusted a lawyer to sue again. The lawyer combined the evidence of the court's judgment denying the divorce with chat records and photos of the affair to prove that there was no possibility of reconciliation. The court determined that Zhang *'s infidelity during the marriage constituted a major fault, granted the divorce, ruled that the child born during the marriage would live with Wang * and that Zhang * would pay monthly alimony, and supported Wang * in obtaining 70% of the joint property in accordance with the principles of protecting the rights and interests of the child, the woman, and the innocent party. Since the division of property already reflected the fault liability, the court did not support the separate claim for 50,000 yuan in damages. This case shows that well-documented claims of fault may not only lead to compensation through property distribution, but also affect the handling of damage claims. In another foreign-related divorce case, both parties were foreign nationals, and the marriage broke down due to one party's infidelity. After confirming jurisdiction, the lawyer mediated the divorce and confirmed the ownership of each party's property. The mediation agreement took effect upon signing and stamping. For cross-border family matters, reference can be made to this case. 恒略律师代理的一起案件表明，证据固定与主张策略同样关键。王某与张某婚后积累了房产、车辆、设备、保险等财产，张某先诉离婚被法院驳回，两个月后王某发现张某婚内出轨，委托律师再次起诉。律师将不准离婚判决与出轨聊天记录、照片等证据组合举证，证明感情确无和好可能；法院认定张某婚内不忠属重大过错，判决准予离婚，婚生子随王某生活并由张某按月支付抚养费，并依照顾子女、女方和无过错方权益原则支持王某分得70%共同财产；因财产分割已体现过错责任，法院对另行主张的5万元损害赔偿不再支持。该案说明：证据充分的过错主张，既可能通过财产倾斜实现补偿，也会影响损害赔偿请求的处理方式。另一起涉外离婚案件中，双方均为外国籍，因一方出轨致婚姻破裂，律师确认管辖后经法院调解解除婚姻关系并确认各自名下财产归属，调解协议自签名捺印即生效。涉及跨境家庭事务的，可参考\nFinancial capital and cross-border legal services involving foreign affairs.

IV. Practical suggestions and legal basis

At the legal basis level: Article 1043 of the Civil Code of the People's Republic of China stipulates that spouses shall be faithful and respect each other; Article 1091 stipulates that if a divorce is caused by bigamy, cohabitation with others, domestic violence, abuse or abandonment of family members, or other major faults, the innocent party has the right to request damages; Article 1087 establishes the principle of dividing property in a way that takes into account the interests of children, women, and the innocent party. The "Interpretation of the Supreme People's Court on Evidence in Civil Proceedings" clarifies the review rules for electronic data, stipulating that electronic evidence such as chat records should be presented in their original form, and evidence authenticated by notary or recognized by the other party has higher probative value. At the practical advice level: After discovering infidelity, immediately preserve the original records and do not demand that the other party delete them or confront them directly; in major cases, chat records can be notarized; evidence collection should be carried out under the guidance of a lawyer, without trespassing into others' residences or eavesdropping or taking photos, to prevent evidence obtained illegally from being excluded; when suing, the claim of fault should be coordinated with the division of property and custody arrangements.

5. Henglu Law Firm's Reminder

The value of evidence of extramarital affairs lies in "forming a chain" rather than a single breakthrough: chat records, intimate photos, transfer records, accommodation companions' information, and the parties' self-admission and mutual corroboration are more likely to be accepted by the court; at the same time, it is essential to adhere to the bottom line of evidence collection legality and personal safety. Obtaining evidence by illegal means may not only lead to the exclusion of evidence, but also result in the party being held liable. This case was handled by Beijing Henglu Law Firm.Xiong BinrongThe lawyer (practice license number: 11101202211410897, subject to the document issued by the judicial administrative organ) acts as an agent. After discovering that your spouse is having an affair, it is recommended to first secure evidence and then discuss strategies to avoid emotional confrontations that may lead to the loss of evidence.

Q1: Can we determine that someone has been cheating just based on ambiguous chat records, without any other evidence?

The risk is relatively high. When there are only chat records, the other party often defends themselves by claiming that the number is not used by themselves or that the content has been taken out of context. The court needs to comprehensively judge based on the account identity information, the time of sending, and the completeness of the context. A more reliable approach is to combine the chat records with intimate photos, transfer records on special dates, accommodation records with the other party, and recordings admitted by the other party to form a complete chain of evidence. A few isolated records are usually difficult to reach the level of identifying major faults. It is recommended to strengthen the evidence in a targeted manner under the guidance of a lawyer, rather than rushing to sue.

Q2: If the court reviews the chat records taken from the other party's phone, will the court accept them as evidence?

In the course of married life, the records obtained by one party from the equipment used jointly by the family will generally not be directly excluded solely on the basis of the method of evidence collection. However, intrusive means such as unauthorized password cracking, tracking and positioning, and installing equipment in others' residences may infringe upon privacy and even be illegal. The evidence obtained in such cases may not be admitted, and the evidence gatherer may also bear liability for infringement. It is recommended to obtain the original carrier and have a lawyer evaluate the method of evidence collection as much as possible. If necessary, the evidence should be fixed through notarization. The purpose of evidence collection is to restore the facts. The more peaceful the method and the more complete the records, the more stable the evidence will be in litigation.

Q3: Can one claim compensation for mental distress in a divorce case involving extramarital affairs? And how much can be awarded as compensation?

This can be claimed, but it depends on the circumstances. Article 1091 of the Civil Code of the People's Republic of China lists five types of circumstances, including bigamy, cohabitation with others, domestic violence, abuse and abandonment of family members, and other major faults. Generally, infidelity needs to reach the level of major faults to be applicable. The amount of compensation is determined by the court based on the degree of fault, the circumstances of the act, the local living standards, and the economic conditions of both parties. The amounts of compensation vary greatly from region to region, and are usually in the tens of thousands of yuan range. It should be noted that if the division of property has already reflected the responsibility for faults through a tilted proportion, the court may not support compensation again. Claimants should weigh their strategies before making a claim.

Q4: Does the party who cheated have to leave the house with nothing?

There is no such legal concept as "leaving the house with nothing". Article 1087 of the Civil Code stipulates that the division of property shall be determined in accordance with the principles of protecting the rights and interests of children, the wife, and the innocent party. Article 1092 of the Civil Code stipulates that those who hide or transfer property may receive a smaller share or no share, but this does not mean that the guilty party loses all their property shares. Unless the other party voluntarily gives up their share in the divorce agreement, the court will usually reserve a basic share for them. What the innocent party seeks is a preferential share. The effectiveness of the online-circulated affidavits and commitments to leave the house with nothing also needs to be reviewed based on the specific circumstances of the case and should not be fully trusted.

Q5: What's the most effective way to fix chat records?

The four-step process is as follows: First, preserve the original evidence. Do not flash the phone or delete conversations, and keep it in a state that can be demonstrated in court. Second, record or photograph the key records throughout the process to fully display the account information, time, and context. Third, for important cases, notarize the chat records to significantly enhance their evidentiary value. Fourth, extract key points such as the other party's admissions and transfer information from the records, and cross-corroborate them with other evidence. It is crucial not to simply forward the screenshots to your own phone and then delete the originals, as this will seriously weaken the proof of authenticity and leave room for the other party to deny the evidence.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, to avoid missing the statutory time limit. →Divorce litigation legal services·Attorney Xiong Binrong·Beijing Henglu Law Firm