[Direct answer]According to current regulations, public security organs generally notify the families of detainees within 24 hours after detention. The detention notice is usually sent by registered post to the address provided by the family, and it usually takes three to seven days from sending to actual receipt. If the family does not receive it in time, it may be due to inaccurate address filling, mail delivery delay, or it may be a statutory exception situation where notification would hinder the investigation. They should contact the case-handling unit as soon as possible to verify the detention place and case details. At the same time, they should remember the maximum 37-day window period after criminal detention. The earlier they entrust a lawyer to meet with the detainee and assess the possibility of bail pending trial, the more conducive it will be for subsequent defense.

1. Problem background and typical scenarios

After a person's personal freedom is restricted, the first official channel for family members to obtain information is often the detention notice, but in practice, there are often various problems with the delivery process. Typical scenarios include: family members only receive verbal information from case handlers or relatives and friends, and wait a long time for written notifications, not knowing where the person is detained; family members who work in other cities often have their household registration addresses different from their actual residence, and the notices sent to their old homes go unclaimed, only to be resent after more than ten days; some families list the recipient as the defendant himself, resulting in the mail being returned; and some family members mistakenly believe that not receiving the notice means the case has not been registered, missing the opportunity to submit a bail application during the early stages of detention. The progress of the investigation stage is rapid, with detention, application for arrest approval, and review of arrest approval all closely linked. While waiting for the mail, family members can have lawyers intervene to meet with the detainee first, which does not conflict with each other. Separating the delivery problem from the defense opportunity will not delay the overall arrangements due to the delay of a letter. In addition, family members from other cities can verify the detention information through the detention center's family reception phone or on-site inquiry window, without having to wait for the mail. Many family members repeatedly check the logistics information during the waiting period. Instead of wasting energy on checking the mail, they should hand over the task of checking the mail to lawyers and start preparing the medical records, family situations, and social relations materials needed for bail applications; applications with complete materials will carry more weight at any stage, while hastily prepared applications are easily rejected.

II. Key points of dispute

First, how is the 24-hour notification period calculated and are there any exceptions? According to the law, except in cases where it is impossible to notify or where notification might hinder the investigation, family members should be notified within 24 hours after detention. In practice, the determination of whether notification might hinder the investigation is flexible. If this situation disappears after the case enters the next stage, notification should be resumed immediately. Second, do the delivery method and receipt period affect the legality of detention? Sending the notification letter does not mean that family members are aware of it. Family members can claim the right to be informed based on this, but to challenge the legality of the detention itself, they need more substantial evidence such as exceeding the time limit or procedural omissions. Third, what information can family members obtain during the investigation stage? The case basis and detention facility can be learned through the case-handling unit and lawyer meetings, but specific evidence content is usually not disclosed to family members before sentencing. Family members should not speculate based on partial information and contact co-defendants or witnesses on their own. Fourth, when is the best time to apply for bail? The first 30 days after detention are the most favorable time window for evidence to be fixed and for social dangerousness assessment. Applying for a change in coercive measures after the approval of arrest will significantly increase the difficulty. In addition, the charge listed on the notification letter is only a preliminary determination in the early stage of the investigation. As evidence changes, the charge ultimately submitted for review and prosecution may be adjusted. Family members should not draw conclusions too early based on this or use the content of the notification letter as the sole basis for determining the defendant's guilt.

III. Professional analysis by Hengluo Law Firm

The value of timely intervention in the investigation stage can be illustrated by a case handled by our firm. In May 2026, C某 was detained by the Haidian Branch of the Beijing Municipal Public Security Bureau on suspicion of disseminating obscene materials and was held in the Haidian Detention Center. The three posts he reposted on the XX Forum had a total of about 5,000 views and 1,000 downloads, but C某 did not gain any economic benefits from them. His motivation was simply to earn forum points to watch other videos. On May 29, 2025, C某 truthfully confessed during his first interrogation after being summoned, and was detained on May 30, 2026. He acted alone and had no accomplices. After his appearance in court, he voluntarily pleaded guilty and accepted the punishment. His family, anxious and desperate, hired a lawyer to seek help, which was precisely the golden period for obtaining bail. Through the lawyer's professional arguments and active communication, on June 24, 2026, the Haidian Branch of the Beijing Municipal Public Security Bureau issued a decision to grant bail, concluding that the suspect C某 might be sentenced to fixed-term imprisonment or more severe punishment, but there was no social danger if bail was granted. According to Article 67 Paragraph 1 Item 2 of the Criminal Procedure Law, the decision was made to grant bail to C某. The client successfully regained his freedom, and this case achieved a phased defense result. The case was handled by Shang Jiangpeng, a lawyer from Beijing Hengluo Law Firm (practice license number: 111012023105807, subject to the document issued by the judicial administrative authority). From detention to the issuance of the bail decision, less than a month passed. This shows that during the period when the notice was delivered and the family was anxiously waiting, the lawyer's work such as meeting with the client and demonstrating social danger could be carried out simultaneously. It's worth noting that the bail application in this case did not rely on evidence collected by the family themselves, but on the first-hand information and legal arguments obtained through the lawyer's meetings. The family's cooperation focused on medical records, guardianship relationships, and proof of living sources. Only when the direction was correct could the materials be used effectively.

IV. Practical suggestions and legal basis

The procedures are based on the provisions of the Criminal Procedure Law of the People's Republic of China (amended on October 26, 2018) regarding the notification of family members after detention and the conditions for the application of coercive measures; the Criminal Law of the People's Republic of China (amended and implemented on March 1, 2021) defines the constitutive elements and sentencing ranges of relevant crimes; and the Lawyer Law of the People's Republic of China (amended on September 1, 2017) guarantees the rights of defense lawyers to meet, communicate, and provide legal assistance during the investigation stage. In practice, it is recommended that family members follow four steps: First, verify with the case-handling unit the contact information of the police officer in charge, the place of detention, and the suspected case; at the same time, check whether the address on the registered letter is accurate. Second, promptly entrust a lawyer to meet with the detainee to understand the detainee's physical and mental condition and the interrogation situation. Third, submit an application for bail as soon as possible after detention, and attach materials such as medical records, guardianship information, and social relations to demonstrate the low social danger of the detainee. Fourth, record the date of detention and use it to calculate the deadlines for applying for arrest and reviewing the decision on arrest. If no decision on arrest or change of measures is received within the deadline, promptly inquire about the situation. Hengluo Law FirmCriminal defense and criminal case filing servicesIt covers the entire process of the investigation phase, and family members can conduct a preliminary consultation before entrusting the case to a lawyer.

5. Hengluo Law Firm's Reminder

It's normal for the notice to arrive a few days late. What really determines the outcome of the case is the quality of responses within 37 days. Three reminders: First, don't be anxious and trust intermediaries who claim to be able to smooth things over. Verify their identities and lawyer qualifications before making payments. Second, don't contact witnesses or co-defendants to collude on their statements during the investigation stage, as this may put witnesses at risk and add unfavorable interpretations for the client. Third, keep the registered letter envelopes and the case-handling unit's response records. These details may be useful in subsequent reviews of the legality of detention. If the family is out of town, they can entrust a Beijing lawyer to attend meetings and submit applications on their behalf. The written authorization and entrustment procedures can be handled by mail. Cases have their own evidence structure and handling pace. What family members can do is to streamline information channels and make full use of legal rights, leaving the professional judgment to defense lawyers. In practice, there's a common misunderstanding of repeatedly calling the case-handling unit to inquire about progress. The information that the case-handling unit can disclose during the investigation stage is limited. Frequent inquiries won't speed up the process but may instead create communication barriers. It's more efficient to focus inquiries around the approval of arrest warrants. Before communication, make a list of questions to be verified and ask them all at once.

VI. Frequently Asked Questions

Q1: Can I still apply for bail if I'm suspected of the crime of disseminating obscene materials?

It can be attempted. The possibility of bail in such cases depends on the scope of dissemination, the profit-making circumstances, and the attitude towards confessing guilt. Taking the cases handled by our firm as an example, the client reposted three videos, did not profit from it, and voluntarily confessed and accepted punishment. The public security organ ultimately made a decision to grant bail pending trial in accordance with Article 67 Paragraph 1 Item 2 of the Criminal Procedure Law (amended on October 26, 2018). The determination mainly depends on whether the viewing and downloading counts reach the standard for prosecution, whether the person has a criminal record, and whether they are first-time or occasional offenders. If the circumstances are close to the threshold for prosecution and the social danger is low, the success rate of obtaining bail will be significantly higher. It is recommended to entrust a lawyer to evaluate and submit the application as soon as possible after detention, rather than passively responding after the approval of the arrest. When evaluating, it is necessary to preserve the original pages of the viewing and downloading counts, as the data is the starting point for proving the possibility of bail in such cases.

Q2: What materials and reasons are required to apply for bail pending trial?

The applicant can be the criminal suspect himself/herself, his/her legal representative, close relatives, or a hired lawyer. The materials typically include an application for bail pending trial, proof of family relationship, power of attorney, and supporting annexes for the application, such as a diagnosis of serious illness, a description of the situation of minor children or elderly people needing care, and proof of fixed residence and employment. The reasons section should demonstrate each legal condition in turn, such as the possibility of being sentenced to imprisonment or a heavier punishment but not posing a danger to society if granted bail, suffering from a serious illness, being unable to take care of oneself, being pregnant or breastfeeding one's own child, etc. The application should be written in detail and accompanied by evidence clues, rather than just a few sentimental pleas. The materials do not need to be collected all at once. The application can be submitted first, and the annexes can be submitted later.

Q3: How are the fees charged for hiring a defense lawyer in criminal cases usually calculated?

There is no unified government pricing for criminal defense fees. Generally, fees are charged on a per-stage basis for investigation, review and prosecution, and trial. They may also be priced based on the complexity of the case, and some major and complex cases use hourly charging. The main factors affecting the quotation include the nature of the charge, the volume of evidence, the detention location, whether it is necessary to handle the case in another location, and whether it involves ancillary civil matters. When signing the power of attorney, the service stages, the number or frequency of meetings, the way of bearing travel expenses, and the refund conditions should be specified item by item to avoid only discussing the total amount without discussing the scope. Be cautious about quotations that are obviously lower than the market level. It is not uncommon for additional fees to be charged under the guise of case handling fees later on. The charging stages of criminal cases can usually be negotiated and split. Families with financial difficulties can first entrust the investigation stage and continue based on the progress.

Q4: Why is it crucial to apply for bail within 37 days after being detained?

Criminal detention generally lasts no more than fourteen days, and major suspects who commit crimes on the run, repeatedly commit crimes, or commit crimes in groups can be detained for up to thirty-seven days, including the time required for the people's procuratorate to review and approve the arrest. During this period, the evidence has not yet been fully fixed, and the investigating organ's assessment of the social danger is still quite flexible, making it easier to respond to bail applications. Once the arrest is approved, applying for a change in coercive measures will require going through the review procedure for the necessity of detention, which has higher thresholds and a longer cycle. Therefore, family members should collect materials such as medical records and family situations as soon as possible after detention, and cooperate with lawyers to complete meetings, arguments, and applications within thirty-seven days, rather than waiting for notifications to be sent before taking action. Once the window period is missed, what awaits family members will be longer detention and a more passive communication position.

Q5: What should family members do after receiving the detention notice?

After receiving the notice, first check three pieces of information: the suspected crime, the detention facility, and the case-handling unit and the case officer. These three items determine the arrangements for subsequent meetings and defense. Then, do the following four things in turn: First, entrust a lawyer to meet with the client as soon as possible and bring out the client's physical condition and interrogation situation; Second, deposit the client's living expenses through the channels designated by the detention center; Third, record the detention date and estimate the deadline for approval of the arrest; Fourth, organize the client's medical records, work certificates, family circumstances, and other materials for future use. Throughout the entire process, maintain written records to avoid oral communication that lacks traceability. After verifying the information, arrange subsequent actions to avoid a lot of futile efforts.

The above Q&A is mainly based on the judicial practice in the Beijing area. 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 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. →Criminal defense legal services·Attorney Shang Jiangpeng·Beijing Henglu Law Firm

Disclaimer: This article is compiled based on the current laws and regulations and publicly available adjudication rules. It is for general reference only and does not constitute formal legal advice for specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. In case of disputes, please consult a practicing lawyer in time.