[Direct answer]In the Beijing area, in divorce litigation, lawyers usually collect evidence along three lines: first, evidence that the parties can fix and provide themselves, such as marriage certificates, real estate certificates, bank statements, chat records, police reports, and medical diagnoses; second, evidence that the parties cannot collect themselves due to objective reasons and is requested by lawyers from the court, such as the account statements under the other party's name and real estate registration information; third, evidence that needs special fixation. Documents obtained abroad must be notarized and authenticated, and electronic data must retain their original carriers. The statutory divorce circumstances are set out in Article 1079 of the Civil Code of the People's Republic of China (effective January 1, 2021). Start fixing the evidence as soon as you find any signs of conflict, and the later you start, the more passive you will be. For more details, please refer to the following link:Divorce litigation and legal services for family disputes.

1. Problem background and typical scenarios

When a party hires a lawyer, a common dilemma is that they know the other party has issues but cannot provide evidence; the property is in the other party's name, so it's impossible to track the account transactions or property information; the chat records have been deleted, and the transfer records only remain as screenshots; they worry that collecting evidence themselves might violate the law, but they're also afraid of tipping off the other party. In divorce litigation, the principle of "he who alleges must prove" applies. Claims without sufficient evidence are unlikely to be supported, while there are corresponding channels for collecting evidence related to property clues, fault facts, and child custody situations. Understanding how lawyers organize evidence can help parties cooperate in fixing key materials. Related ideas can be referred to for reference.Divorce Litigation and Family Disputes SectionSimilar questions and answers.

II. Key points of contention

The controversy over evidence collection focuses on four points. Firstly, the boundaries of legality: information obtained by infringing on others' legitimate rights and interests, violating prohibitive legal provisions, or seriously contravening public order and good customs cannot be used as the basis for establishing facts. Secretly installing eavesdropping devices and forcibly breaking in to collect evidence carries extremely high risks. Secondly, the standard of proof: civil litigation adopts a high degree of probability standard. Indirect evidence forming a complete chain can also be used to establish facts, and it is not necessary to "catch someone in the act of adultery". Thirdly, the burden of proof: if a party alleges that the other party is at fault or claims that a certain property is jointly owned, the burden of proof lies with the party making the claim. Fourthly, court investigation and evidence collection: if a party is unable to collect evidence on their own due to objective reasons, they may apply to the court for evidence collection, and the court will decide whether to grant the application based on a review of the circumstances.

III. Professional analysis by Henglue Law Firm

A case of invalid foreign marriage handled by Henglue Law Firm fully demonstrated the process of evidence organization from clue discovery to overseas evidence collection. On May 14, 2018, plaintiff Li Xiang and defendant Li Li registered their marriage in Xicheng District, Beijing. After the marriage, Li Li committed domestic violence and mental abuse against Li Xiang for a long time, resulting in Li Xiang being diagnosed with moderate depression. In March 2025, Li Xiang entrusted lawyer Xiong Binrong to sue Li Li in Shunyi District Court for divorce, but Li Li firmly opposed the divorce in court. The lawyer then went to Li Li's household registration place for investigation and made a breakthrough discovery: Li Li had registered her marriage with Swedish man George on November 26, 2014, and was divorced by the Uppsala District Court of Sweden on January 18, 2018. However, before registering her marriage with Li Xiang, she had not applied to the intermediate court of China for recognition of the Swedish judgment, and the previous marriage was still valid under Chinese law. Therefore, the lawyer changed the claim from divorce to confirmation of marriage invalidity and systematically carried out evidence collection: applying to the Swedish court for disclosure of the divorce judgment, completing the notarization and Chinese translation of the additional certificate; submitting the provisions of Swedish marriage law to prove that the Swedish tax bureau had no right to dissolve the marriage; and retrieving the marriage registration file to prove that Li Li had previously submitted the information from the tax bureau rather than the recognized judgment. Li Li denied domestic violence and denied having married a foreigner, claiming that holding the tax bureau's certificate authenticated by the embassy meant she had legally divorced. The People's Court of Shunyi District, Beijing fully accepted the lawyer's opinion and ruled on April 30, 2026 that the marriage was invalid, with the case acceptance fee of 150 yuan to be borne by Li Li. This case was handled by Beijing Henglue Law Firm.Xiong BinrongThe attorney (practice license number: 11101202211410897, subject to the certificate issued by the judicial administrative organ) acts as the agent. Other cases handled by Henglue Law Firm also present different forms of evidence: some use police reports, diagnosis certificates, communication records, and travel trajectories to corroborate each other and prove domestic violence and the breakdown of the relationship; some sort out the bank statements item by item, pointing out that the statements are just the track of funds and cannot prove the creditor's rights alone. In the end, both courts rejected the other party's request.

IV. Practical suggestions and legal basis

The legal basis includes: Article 1079 of the Civil Code of the People's Republic of China (effective January 1, 2021), which stipulates the legal circumstances for litigation divorce, including the situation where the court refuses to grant a divorce and the parties then live apart for more than a year, and the situation where the party who files the lawsuit again should be granted a divorce; Article 1051 of the Civil Procedure Law of the People's Republic of China (amended in 2023), which stipulates the burden of proof on the parties and the provisions that the people's court may investigate and collect evidence if the party cannot collect it by himself due to objective reasons; and the "Several Provisions of the Supreme People's Court on Evidence in Civil Procedure" (amended on December 25, 2019 and effective on May 1, 2020), which stipulates the exclusion of illegal evidence and the requirements for the form of electronic data. Action list: First, list the facts to be proved and match the sources of evidence item by item; Second, fix the documentary evidence and electronic data immediately, preserve the original carriers, and, if necessary, notarize or apply for a time stamp; Third, organize the clues that the party cannot obtain into a written application, and let the lawyer apply to the court for investigation and evidence collection; Fourth, handle the notarization, authentication, and translation of overseas evidence in advance. For details, please refer to the relevant provisions.Marriage and family legal services.

5. Henglu Law Firm's Reminder

The window of opportunity for evidence collection is shorter than expected: chat records may be deleted, surveillance videos have a coverage cycle, account transactions roll over with time, and witnesses' memories gradually fade. If you discover that your partner has been cheating, transferring assets, or committing domestic violence, you should fix the evidence under the guidance of a lawyer as soon as possible. It is strictly prohibited to obtain evidence by means of wiretapping, trespassing, or threatening violence—the materials obtained by such means will not only be inadmissible in court, but may also turn you from the rightful party to an infringer or even a person suspected of violating the law. When handling similar cases in the Beijing area, it is recommended to entrust a lawyer as soon as possible.Beijing Henglue Law FirmProfessional lawyers develop evidence-gathering plans and use every piece of material to support key facts.

VI. Frequently Asked Questions

Q1: Can one win a divorce lawsuit without "conclusive evidence" of the other party's infidelity?

There is a possibility of winning the case, but the key lies in whether the chain of evidence is complete. Civil litigation adopts a high standard of probability, and it does not require direct evidence such as catching someone in the act: chat records, transfer records, travel and accommodation records, letters of repentance, and corroborating witness statements can also determine fault or the breakdown of the relationship. On the contrary, claims based solely on emotional accusations and without any supporting evidence are unlikely to gain support. The outcome of the case depends on the organization of evidence and the application of the law. No lawyer can guarantee victory or defeat on their own. Rationally assessing the current state of the evidence is the first step.

Q2: What kind of evidence will lawyers typically help me collect?

They are usually divided into four categories: First, evidence of identity and marital relationship, such as marriage certificates, household registration books, and marriage registration files; Second, property evidence, such as real estate certificates, vehicle registration certificates, bank statements, stock and fund accounts, insurance policies, industrial and commercial registration and equity certificates; Third, evidence of fault, including police reports and diagnostic certificates related to domestic violence, chat records and transfer receipts related to infidelity, separation agreements and rental contracts; Fourth, evidence of child support, such as birth certificates, school and medical records, and daily care certificates. For evidence that is difficult to obtain on one's own, lawyers can apply to the court for investigation and evidence collection.

Q3: If I hire a lawyer to collect evidence, how will the fees be calculated?

The attorney's fees are determined through negotiation between the client and the law firm, usually charged on a per-case or pro-rata basis based on the subject of the dispute, the workload, and the procedural stage. Complex cases may be commissioned in stages. In litigation, applying to the court for investigation and evidence collection generally does not incur additional fees; for applying for property preservation, the application fee is paid according to the amount of the preserved property, with a maximum of no more than 5,000 yuan; for commissioning audits, evaluations, and appraisals, the fees are charged by the corresponding institutions in accordance with regulations, and the losing party usually bears the final costs. It is recommended to clarify the fee charging method and the scope of work at each stage in writing with the law firm before entrusting them with the case.

Q4: How long does it usually take from collecting evidence to going to court?

For evidence collected independently, it can be completed in just a few days; for evidence collected through court investigations, it usually takes several weeks from submitting the application to obtaining the results, and complex cases may take months; for notarization, authentication, and translation of overseas evidence, it often takes one to three months depending on the efficiency of different countries. After the evidence collection is completed, the trial period for the first-instance ordinary procedure is six months, and for the simplified procedure, it is three months. The evidence collection time is not included in the trial period. Overall, cases with a good evidence base can go to court within a few months, while those involving foreign countries or complex property clues may take nearly a year.

Q5: If I discover that there's something wrong with my spouse, what's the first step in gathering evidence?

Four steps to proceed: First, stay calm and organize a list of known clues, such as the other party's account, property address, and joint accounts; Second, fix the existing materials. Export and retain the chat records in their original form, and label photos and videos with the time and source. Important materials can be notarized; Third, immediately call the police and seek medical treatment if you encounter domestic violence or threats. The police report and diagnosis certificate have the strongest evidentiary value; Fourth, hand over the organized clues to a lawyer, who will determine which ones can be retrieved independently and which ones need to be investigated by the court. Never obtain evidence by illegal means.

This article is written based on the common judicial interpretations in the Beijing area. If the case occurs in other regions, it is recommended to consult local lawyers to verify the regional differences.

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

Disclaimer: This article is compiled based on the current effective laws and regulations and public adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. In the event of a dispute, please consult a practicing lawyer in a timely manner.