[Direct answer]The goal of evidence collection is to transform the subjective feelings of a broken relationship into verifiable external facts. The available materials can be divided into four groups: First, statutory circumstances evidence, including bigamy or cohabitation with others, domestic violence, gambling and drug addiction that cannot be reformed, and separation due to marital disharmony for more than two years, in accordance with Article 1079 of the Civil Code of the People's Republic of China (effective January 1, 2021); Second, continuous evidence, such as contracts for renting other housing, rental payment records, residence registration, and property access records; Third, auxiliary evidence, such as chat records, call logs, and witness statements from relatives and friends; Fourth, procedural materials, such as police report receipts, domestic violence warning letters, injury appraisal opinions, and personal safety protection order rulings. The quantity is not the key point; what matters is the continuity and mutual corroboration of the evidence over time.

I. Problem Background and Typical Scenarios

In family cases in Beijing, being unable to continue the marriage and having a legally broken relationship are two different matters. Some couples live in a two-bedroom apartment, each locking their doors, cooking separately, and not interacting with each other. Objectively, they have already separated, but formally, they are still at the same address. Some couples live in different places due to overseas assignments, pursuing a doctoral degree, or accompanying their children to study abroad. One party may consider this as separation, but the court may determine it as being caused by work or study. There are also people who move out to rent an apartment, but leave their household registration, express delivery, and vehicle registration at the original address, unable to provide evidence of continuous residence.

More commonly, there are discrepancies in the form of evidence. For example, a party may have hundreds of screenshots of chats, but none of them can prove the specific date or the identity of the speakers; a camera installed at home may capture a conflict, but the way of taking the images might infringe on the other party's privacy; a note written by a child expressing his willingness to stay with his mother may be hard to believe due to his age and the way he expresses himself. Rearranging these materials according to the timeline and the objects of proof is often more effective than continuing to collect new materials.

There is also a type of situation related to the pace of evidence presentation. Some people submit all the materials at once during the first lawsuit, and there is no new evidence available for the second lawsuit; others save the key materials for the second instance, but they are rejected due to being submitted beyond the time limit. Evidence is not a one-time supply of ammunition. Submitting it in batches according to the procedural stages is more in line with the logic of the trial.

II. Key points of contention

The determination of separation is the first point of contention. The legal definition of separation requires that the cause be a lack of harmony in the relationship, a continuous state, and a period of at least two years. Living in different places due to work, study, or medical treatment is not counted. Whether living together while separated can be considered a separation is a controversial issue in practice, and evidence of each party bearing their own living expenses and not fulfilling their marital obligations is required. If the court denies the divorce in the first judgment and the parties separate again for one year after the first judgment, the court shall grant the divorce. However, proving this one-year separation is often more difficult than proving the previous two years of separation.

Second, the legality of the evidence-gathering methods. Recording the conversation between the two parties at home is generally admissible, but secretly entering the rented house of the other party to film, installing tracking devices on others' vehicles, or secretly obtaining hotel check-in records may be excluded due to infringement of privacy, and even lead to compensation for infringement. Third, the authenticity of electronic data. Screenshots are easily suspected of being tampered with, so the original carrier should be preserved. When necessary, notarization or the use of trusted time stamps should be used to fix the evidence. Fourth, the probative force of witness testimony. Witnesses from relatives and friends are usually only used for auxiliary purposes due to their vested interests. Fifth, the time limit for providing evidence. Evidence submitted beyond the time limit may not be subject to cross-examination. For materials that require an investigation order to obtain, a written application should be submitted within the time limit for providing evidence.

There is also a category of disputes related to children. The records submitted when competing for custody, if obtained improperly or with misleading content, have limited probative value. For children aged eight or above, the court will separately inquire about their true wishes. If parents rehearse their answers in advance, it may backfire. Evidence related to a stable living environment is more reliable: who picks up the child, who attends parent-teacher meetings, and who accompanies the child to medical appointments—these daily records carry more weight than a written statement. Organizing such records by month and placing them in the same folder as living and schooling materials is more likely to be accepted than emphasizing the child's statements alone.

III. Professional analysis by Hengluo Law Firm

From the experience of handling family cases in our firm, the preparation of evidence is most likely to go to two extremes: first, only storing evidence without organizing it properly, with thousands of records in the phone, but unable to clarify which record corresponds to which fact in court within a minute; second, only focusing on proving the other party's fault and ignoring the large-scale expenditure from their own accounts and the proof of their parents' investment in purchasing the house, resulting in a passive position in the property division stage.

A more effective approach is to first list the objects of proof and then gather the materials. To prove the breakdown of the relationship, prepare a set of evidence for each of the four aspects: the cessation of cohabitation, manifested by objective traces of separation; the interruption of communication or the existence of only conflicts, as reflected by the distribution of call and chat times; the failure of repair efforts, such as records of mediation by relatives and friends or marriage counseling; and the establishment of one of the statutory circumstances, requiring specific evidence of fault or separation. To prove the status of the property, cross-corroborate the evidence along four lines: registration, investment, transaction records, and possession. This structure is consistent in the complaint, evidence list, and trial statements, allowing judges to quickly form judgments when reviewing the case materials.

Another often overlooked aspect is the evidence index. The difference between having an index and not having one for the same batch of materials is significant: an index should specify the name of the evidence, the number of pages, the source, and the object to be proven. Each page corresponds to a fact, allowing judges to locate key pages within minutes. In cases with a large amount of materials, the index itself serves as a form of argumentation. In addition to the index, a timeline should be attached, aligning each node with the corresponding evidence number. This eliminates the need to search for evidence during courtroom presentations.

IV. Practical suggestions and legal basis

In terms of legal basis, Article 1079 of the Civil Code of the People's Republic of China (effective January 1, 2021) lists the circumstances under which a divorce should be granted, and stipulates that if the people's court rules against the divorce and the parties then live apart for one year after the ruling, and one party files for divorce again, the divorce should be granted; Article 1084 establishes the principle that children under two years old should be directly raised by their mothers, and children over eight years old should be respected for their true wishes; Article 1087 stipulates that when dividing joint property, the interests of children, women, and the non-at-fault party should be taken into account; Article 1092 stipulates that in the case of hiding, transferring, selling, damaging, or squandering joint property or forging debts, the party involved may be granted a smaller share or no share at all.

The specific steps can be carried out on a weekly basis: 1. In the first week, establish a timeline and arrange key events such as marriage, separation, conflicts, police reports, and mediation by date. 2. In the second week, secure evidence of separation of residence. Retrieve the lease contract, rental transfer records, community residence registration, and utility payment records. If necessary, request the property management company to provide a statement of entry and exit. 3. In the third week, secure evidence of fault. After reporting the incident to the police, obtain the police report and warning letter. When seeking medical treatment, retain medical records and imaging data. Preserve the original chat records and have them notarized. 4. In the fourth week, organize a property inventory, noting the ownership certificates and sources of evidence for each item. If it is necessary to retrieve the other party's bank, securities, or real estate information, submit an investigation and evidence collection request when filing a lawsuit. Related procedures and document templates can be found atDivorce litigation and family dispute servicesPage query.

For matters requiring professional technical judgment, such as disability rating, mental state, and property value, an application for appraisal should be submitted within the evidentiary period. Applications submitted after the deadline may not be approved, and the other party has the right to request a re-appraisal of the appraisal opinions commissioned by the applicant. Similarly, when applying for an investigation order, the applicant must specify the account to be investigated, the name of the unit, and the scope of the inquiry. A general application is often returned, and the whole process takes about two weeks.

5. Henglu Law Firm's Reminder

There are three pitfalls that need to be avoided. Firstly, misunderstanding separation as simply not living together, ignoring the root cause of the marital discord; Secondly, printing and submitting all chat records at once, which not only exposes privacy but also dilutes the focus of the case; Thirdly, confronting the other party emotionally after discovering their faults, which may lead the other party to delete data and transfer funds in advance.

The earlier you take these two actions, the better. First, make a backup and store one copy in the cloud and another locally. Do not flash the device or change the phone number. Second, leave evidence. When reporting a crime, be sure to request a written receipt, and when seeking medical treatment, make sure the doctor records the cause and time of the injury in the medical records. The value of evidence lies not in its quantity, but in whether it can be pieced together into a complete, continuous, and verifiable timeline.

The last point: Keep the original evidence. Copies are easily denied during the cross-examination, and it's extremely difficult to make corrections after the original is lost. For materials such as property certificates, contracts, and bills, it is recommended to store them separately and scan a backup copy. The scanned copies should be named according to the date and be consistent with the catalog number. For materials handed over to lawyers, a written handover list should be prepared.

VI. Frequently Asked Questions

Q1: Can only the WeChat chat records prove that we have been living apart for more than two years?

Generally, it cannot be proven alone. Chat records can reflect the communication status and place of residence, but the determination of separation requires continuous living facts. The court pays more attention to rental contracts, rental payment records, community registration, and water, electricity, and property records. A feasible approach is to use two lines in parallel: the content of the chat, such as living in different places, not communicating with each other, and bearing their own living expenses, should be corroborated with rental and payment receipts. The records should be kept on the original mobile phone, and the screenshots should show the identity of the chat participants and the date. If necessary, notarization should be carried out. If only printed copies are submitted and the original carriers cannot be presented, the probative force will be greatly weakened.

Q2: After reporting domestic violence, which written materials should be kept?

The four most crucial documents are: the receipt of the police report or the record of the police response, which can prove the time and reason of the alarm; the family violence warning letter issued by the public security organ, which is the most direct evidence; the injury appraisal opinion and the hospital medical records and imaging reports, which need to record the cause and time of the injury; and the ruling on personal safety protection orders issued by the people's court. In addition, you can keep the photos of the scene, the damaged items, the witness statements of neighbors, and the records of seeking help. When making an alarm, you should clearly state the time, location, and perpetrator. After that, you can go to the police station to retrieve a copy of the transcript. The time chain formed by multiple alarm records is more convincing than a single serious injury.

Q3: Can the cost of hiring an investigation company to obtain evidence be transferred to the other party to bear?

Generally, this is not allowed. Lawyer's fees and investigation fees are, in principle, borne by the client himself. Only when there are special provisions in the law or contractual agreements can they be transferred to the other party. In practice, if there are major faults such as maliciously concealing or transferring property, or if one party is involved in bigamy or cohabitation with others, the court may, at its discretion, support some reasonable expenses, but invoices and power of attorney contracts are required. It should be noted that if the means of evidence collection, such as tracking, secret filming, and purchasing personal information by the investigative company, are illegal, not only will the expenses not be recoverable, but the evidence may also be excluded, and the party may even bear liability for infringement. A safer approach is to obtain the evidence through a court investigation order.

Q4: After the first judgment of non-divorce, how long should I wait before suing again to prove that we have been living apart for at least one year?

From the date the judgment takes effect, the parties may file a lawsuit again after a continuous period of one year, and during this period, the parties must be in a state of separation. According to Article 1079 of the Civil Code of the People's Republic of China (effective January 1, 2021), if the parties have been separated for one year after the people's court's judgment refusing divorce and one party files a lawsuit for divorce again, the divorce shall be granted. If the lawsuit is filed within six months after the judgment without any new circumstances or reasons, the court will not accept it. The living traces during this one-year period must be preserved on a monthly basis, and the rental contract, payment records, and community registration are indispensable. Otherwise, it may be easily deemed that the separation is not continuous.

Q5: If you find that the other person has deleted the chat history, what steps should you take that day to preserve the evidence?

On that day, we will first secure the evidence and then discuss other matters. You can bring your own mobile phone to the notary office to handle the electronic data custody notarization. The notary will operate on-site and record the device information and the extraction process. You can also use trusted time stamps and blockchain evidence-preservation platforms to fix the page screenshots. At the same time, export cloud backups and print bank and payment statements to avoid having no way to verify after the account is cancelled. Do not attempt to recover the other party's device data, nor purchase so-called recovery services. Such operations may violate the secrecy of communication. After the evidence is secured, you can apply to the court for an investigation order to retrieve the other party's transfer and consumption records.

The above Q&A is mainly based on the judicial practice in Beijing. There may be differences in the adjudication guidelines in different regions. It is recommended to consult a professional lawyer based on the specific circumstances of the case.

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

Disclaimer: This article is compiled based on the current effective laws and regulations and open 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. If a dispute arises, please consult a practicing lawyer in time.