[Direct answer]There are statutory timeframes for criminal case handling: the maximum duration of criminal detention is 37 days (with a maximum of 30 days for applying for arrest approval and 7 days for review by the procuratorate); after arrest, the investigation and detention period generally does not exceed 2 months, which can be extended according to Article 156 of the Criminal Procedure Law; the review and prosecution decision should be made within one month according to Article 172, and the period can be extended by 15 days for major and complex cases; the first-instance judgment should be pronounced within 2 months according to Article 208, and no later than 3 months. The maximum duration of bail pending trial is 12 months. The overall duration varies greatly depending on the charge and case circumstances, and family members can entrust a lawyer to handle the case.Criminal defense lawyerFollow up on a stage-by-stage basis.

I. Problem Background and Typical Scenarios

After family members are taken away, what they care most is often "how long they will be detained and when there will be results". Criminal cases go through three stages: investigation, review and prosecution, and trial. Each stage has a statutory time limit, but there is also room for extension according to the law: simple guilty plea cases are concluded within a few months, while major and complex cases may take one or two years. If family members do not understand the time limits, they are likely to miss the best window for applying for bail within 37 days of detention, and it is also difficult for them to judge whether the case-handling organ has detained the suspect beyond the legal time limit. Understanding the time frames of each stage is the basis for judging the progress of the case, arranging meetings and defense work, and also the coordination point between family members and lawyers.

II. Key points of contention

  • Detention and approval of arrest: Generally, the request for approval of arrest shall be submitted within 3 days, which can be extended by 1 to 4 days. For fugitives, repeat offenders, or gang crimes, the extension period can be up to 30 days. The procuratorate shall make a decision within 7 days, hence the term "Golden 37 Days".
  • The dispute over the extension of the time limit: The detention period for investigation, the review and prosecution period, and the time limit for the first-instance trial can all be extended according to law. Whether the approval procedures have been followed and whether there is excessive detention are the key points of the lawyer's procedural review;
  • Bail and case progress: Bail pending trial does not mean the case is closed. The case will still be proceeding within a maximum of 12 months. Some families mistakenly believe that "if the person is released, everything will be fine" and become lax in dealing with the situation.

III. Professional analysis by Henglue Lawyers

The timeframes are just a framework. What really determines the progress is the defense actions at each node. Beijing Henglu Law FirmZhu GuiyingIn a case of operating a casino handled by a lawyer, W * was charged with live-streaming on an overseas online gambling platform and was detained on December 20, 2025. After the lawyer met with him, he seized on factors such as his low status, being an accomplice, confessing his guilt, and needing continuous medical treatment, and applied for bail pending trial based on Article 67 of the Criminal Procedure Law. On January 19, 2026, exactly 30 days after his detention, W * was granted bail and regained his freedom. This case demonstrates the value of time windows: the 30-day period after detention is a critical period for securing bail and avoiding formal arrest. Once formal arrest is granted, the difficulty of changing coercive measures significantly increases during the months-long investigation and detention period. Families should arrange meetings, submit legal opinions, and collect mitigating circumstances based on key stages such as "37 days after detention, formal arrest, transfer to the procuratorate for review and prosecution, and trial", rather than passively waiting for notifications from the case-handling authorities.

IV. Practical Suggestions and Legal Basis

The main time limits are as follows: According to Article 91 of the Criminal Procedure Law, after detention, the suspect should be brought before the court for approval of arrest within three days. Under special circumstances, the time limit may be extended by one to four days. For major suspects who commit crimes by roving around, repeatedly committing crimes, or committing crimes in groups, the time limit may be extended to 30 days. The procuratorate shall make a decision on whether to approve the arrest within seven days. According to Article 156, after arrest, the investigation and detention shall not exceed two months. If the case is complex, with the approval of the higher-level procuratorate, the time limit may be extended by one month. For major and complex cases, the time limit may be further extended according to law. According to Article 172, the review and prosecution shall make a decision within one month, and for major and complex cases, the time limit may be extended by 15 days. For cases applying the fast-track procedure of pleading guilty and accepting the punishment, the decision shall be made within 10 days. According to Article 208, the first-instance judgment shall be pronounced within two months after acceptance of the case, and the latest time limit shall not exceed three months. For cases involving the death penalty or accompanying civil litigation, the time limit may be extended by three months with approval. According to Article 79, the maximum period of bail pending trial shall not exceed 12 months. If any overdue period is found, lawyers may apply for a change of compulsory measures or file complaints and accusations according to law.

5. Henglu Law Firm's Advice

The time limit is the measure of rights: the bail window within 37 days, the non-prosecution space in the review and prosecution stage, and the sentencing defense in the trial stage. Once missed, it will be hard to make up for it. This case is handled by Beijing Henglue Law Firm.Zhu GuiyingThe attorney (practice license number: 11101202011246828, subject to the document issued by the judicial administrative organ) stated that in similar cases, continuous follow-up at key junctures can substantially change the direction of the coercive measures. If family members are involved in the case, it is recommended to handle it as soon as possible through legal means.Criminal Defense | Criminal Case Filing ServicesOrBeijing Henglu Law FirmHire a lawyer and formulate a defense plan in stages.

Q1: How many days is the average duration of criminal detention?

Generally, within three days after detention, if the public security organ deems it necessary to arrest the suspect, it shall submit the case to the procuratorate for approval of arrest within three days, and the time limit may be extended by one to four days in special circumstances; for major suspects who commit crimes by roving around, repeatedly, or in gangs, the time limit for submitting the case may be extended to 30 days; the procuratorate shall make a decision on whether to approve the arrest within seven days after receiving the application for approval of arrest. Therefore, the maximum period of detention and review is 37 days, commonly known as the "golden 37 days". During this period, lawyers can meet with the suspect, understand the case, and submit legal opinions against the approval of arrest; if the procuratorate does not approve the arrest, the public security organ shall immediately release the suspect or change the coercive measures according to law, which is the first window for winning freedom.

Q2: How long will it take to close the case after being granted bail pending trial?

Bail pending trial is merely a change in coercive measures, and the case does not end with it. Investigation, review and prosecution, and trial will proceed as usual. According to Article 79 of the Criminal Procedure Law, the maximum duration of bail pending trial shall not exceed 12 months, and the case-handling organ shall not interrupt the investigation of the case. Simple cases may be transferred for review and prosecution within a few months after bail and be concluded relatively quickly, and those applying for fast-track procedures will be even faster. Complex cases may approach the 12-month limit. During the bail period, the defendant should keep their contact information accessible and be ready to appear when summoned. Violating the rules may result in the confiscation of the bail and re-detention. Family members are advised to confirm the expected time of each stage with their lawyers and prepare materials for mitigating circumstances such as compensation and apologies simultaneously.

Q3: Will the case be dragged out indefinitely without a verdict?

There will be no indefinite delays. There are statutory time limits for each stage: the investigation and detention period is generally two months, and the extension can be approved at each level according to the statutory circumstances; the review and prosecution period is one month, with a possible extension of 15 days. The number of times for returning the case for supplementary investigation is limited to two, with each period being one month; the first-instance judgment must be pronounced within two to three months, and the case can be extended with approval in specific circumstances. If the case cannot be concluded within the time limit, the compulsory measures shall be changed or the detainee shall be released according to law. If there are suspicions of excessive detention, lawyers can verify the time limit of the compulsory measures with the case-handling organ, apply for a review of the necessity of detention, or file an appeal or complaint with the procuratorial organ. Excessive case handling is a procedural violation and should be corrected according to law. Families need not panic excessively, but should take the initiative to verify the situation.

Q4: Are cases involving guilty pleas and accepting punishments processed much faster?

Yes. Cases involving guilty pleas and sentencing agreements can apply for expedited or simplified procedures: if the case is under the jurisdiction of a basic-level court, the defendant admits guilt and agrees to the application of such procedures, and the possible sentence is less than three years in prison, the case can proceed with expedited procedures. The review and prosecution shall make a decision within 10 days, and if the possible sentence exceeds one year, the deadline shall be extended to 15 days. The trial process is greatly simplified, and the judgment is usually pronounced in court. However, a guilty plea and sentencing agreement is a confirmation of the alleged facts and charges. Before signing the plea agreement, the defendant should fully understand the content of the charges, the status of the evidence, and whether the sentencing recommendation is appropriate. It is recommended that lawyers review the case file and evaluate it first, then decide whether to apply for such procedures and negotiate with the procuratorial organ about the sentencing, so as to avoid giving up necessary defense space for the sake of speed.

Q5: How long after the first-instance judgment is it valid to appeal?

The time limit for appealing against a first-instance judgment is 10 days, and the time limit for appealing against a ruling is 5 days, both of which start from the second day after receiving the judgment or ruling. If the appeal is not filed within the time limit, the judgment will take legal effect. The appeal can be submitted in writing or orally, and it can be submitted through the original trial court or directly to the higher-level court. After the second-instance court accepts the appeal, it generally concludes the case within two months. Whether to appeal and how to draft the appeal grounds involve professional judgments on fact determination, sentencing circumstances, and procedural defects. It is recommended to consult a lawyer as soon as possible during the appeal period to assess the possibility of a retrial and avoid giving up blindly or wasting the opportunity for relief due to a misfocused argument.

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 Zhu Guiying·Beijing Henglu Law Firm