[Direct answer]The law does not mandate it, but the risk is borne by oneself. It is not illegal to not hire a lawyer after being detained in criminal custody—qualified individuals can receive legal aid, and minor crimes may also be handled independently; but the golden 37-day period during the investigation stage (from the time of criminal detention to the decision on approval of arrest) is the best window for bail and defense against lesser charges. Meeting with a lawyer can stabilize the defendant's emotions and prevent them from making unfavorable statements during interrogation. Professional bail applications can convert the detention status to a non-detention status. For minor crimes and cases with clear facts, one can wait and observe; for suspected serious crimes, cases with questionable evidence, or where the defendant is detained, it is a rational choice to hire a lawyer as soon as possible.

1. Problem background and typical scenarios

The family members were detained by the police, and the relatives were hesitant between "spending tens of thousands to hire a lawyer" and "waiting for the public security organ to investigate the case clearly". The cost of hesitation is often underestimated: the client knows nothing about the interrogation strategy in the detention center, and the family misses the opportunity to apply for bail. If they want to reverse the situation after the approval of the arrest, the difficulty will be multiplied. The time value of criminal defense is mainly reflected in the period after detention and before the approval of the arrest.

II. Key points of contention

Firstly, the practical role of lawyers' early involvement and the value boundaries of meetings and bail applications; Secondly, the differences between legal aid and self-paid commissioning; Thirdly, which cases do not require lawyers; Fourthly, the relationship between the timing of commissioning and the "golden 37 days".

III. Professional analysis by Henglue Lawyers

The first level: What lawyers can do during the investigation period: Meet with the client within 48 hours to understand the suspected charges and interrogation situation, inform them of their litigation rights and key points of the statement; assess the necessity of detention and submit applications for bail or legal opinions against arrest to the case-handling authorities; provide legal guidance to family members to prevent secondary risks such as collusion in evidence and destruction of evidence. The second level: When it's not necessary to hire a lawyer: For cases with minor circumstances where the suspect may be exempted from punishment, or for misdemeanor cases where the facts are clear, the defendant admits guilt and accepts the sentencing proposal, basic procedures can be completed through duty lawyers and legal aid. However, there's often a pile of case files between "what appears to be a misdemeanor" and "what is confirmed to be a misdemeanor," and professional judgment is needed to make this determination. The third level: Practical case reference: In a case of disseminating obscene materials handled by Shang Jiangpeng, a lawyer from Beijing Henglue Law Firm, C某 was criminally detained by the Haidian Branch of the Beijing Municipal Public Security Bureau in May 2026 for reposting three obscene videos on a forum. With approximately 5,000 views and 1,000 downloads, and no profit motive involved, the family entrusted Shang Jiangpeng to intervene. The lawyer successfully argued from two perspectives: the failure to meet the threshold for criminal liability and the lack of social danger. Combined with the circumstances of voluntary surrender and plea bargaining, a legal opinion for bail was submitted, and on June 24, 2026, the Haidian Branch granted bail. From criminal detention to regaining freedom, the key was submitting the legal opinion to the case-handling authorities within the statutory timeframe. The fourth level: Decision-making on hiring a lawyer: For those who are detained, involved in serious crimes, or where evidence is disputed and the client has room for defense, hiring a lawyer offers far greater benefits than the cost. For those who have already pleaded guilty and accepted the sentencing proposal, the need for hiring a lawyer decreases accordingly, but sentencing negotiation still requires professional guidance. This case was handled by Beijing Henglue Law Firm.Shang JiangpengAttorney (Practice Certificate No.: 111012023105807, subject to the certificate issued by the judicial administrative organ) acting as an agent.

IV. Practical suggestions and legal basis

The first step is to verify the detention facilities and case-handling units, and organize the basic information of the parties involved. The second step is to conduct a professional consultation and assessment of the case's risk level. The third step is to decide to entrust the focus on the first 37 days of detention and arrange a meeting and a bail application as soon as possible. The fourth step is to maintain communication with the case-handling authorities for the time being and pay attention to the approval of the arrest. The main legal basis: Article 34 of the Criminal Procedure Law of the People's Republic of China (amended in 2018) regarding the entrustment of defense, Article 67 regarding the conditions for bail pending trial, and Article 81 regarding the conditions for arrest; the specific application shall be subject to the currently effective provisions.

5. Henglu Law Firm's Reminder

Whether or not to hire a lawyer after being detained in criminal custody essentially means paying for the information gap and time window: once the window period passes, many opportunities for appeal will be lost. For matters involving responses to criminal detention and applications for bail, you can seek assistance through the following channels:Criminal defense and criminal case filingObtain a comprehensive solution for the service; for cases involving legal aid coordination, it can be combined with other relevant services.Special servicesPlate; for cases involving economic crimes, you can refer to it for reference.\nFinancial capital and cross-border transactions involving foreign entitiesColumn; if the enterprise personnel are involved in criminal cases, you can consult us for adviceIntellectual property protection and corporate lawTeam.

VI. Frequently Asked Questions

Q1: What are the actual losses if one doesn't hire a lawyer?

The key issues are information and timing: the parties involved do not understand how to respond to interrogations and navigate the bail process, and family members often miss the critical 37-day window. Once the suspect is formally arrested, it becomes significantly more difficult to secure non-custodial measures.

Q2: Can legal aid replace lawyers hired at one's own expense?

Those who meet the requirements can receive legal aid, and duty lawyers can provide basic assistance. However, the investment in cases and the customization of strategies by assisting lawyers are usually limited, and it is recommended to hire lawyers at your own expense for major cases.

Q3: When is the most appropriate time to hire a lawyer?

It's better to seek bail as soon as possible after being detained in custody. The 37 days before the decision on whether to approve the arrest are the best opportunity to strive for bail or avoid being approved for arrest. During the review and prosecution stage, the focus of the lawyer's work is on reviewing the case file and negotiating the sentencing with the prosecutor.

Q4: Is it necessary to hire a lawyer for misdemeanor cases?

For misdemeanors where the defendant admits guilt, accepts the punishment, and the sentencing is clear, it is not necessary to hire a lawyer at their own expense; however, for cases involving the application of probation, restitution, or settlement negotiations, professional supervision and review still have practical value.

Q5: What can family members do now?

Verify the detention location, prepare clothes and living expenses for delivery, organize the detainee's physical and work conditions, and consult a lawyer by phone as soon as possible to assess the risks.

The above Q&A is mainly based on the judicial practice in the Beijing area. There may be differences in the adjudication standards 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 materials to avoid missing the statutory time limits. →Criminal defense 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. In case of disputes, please consult a practicing lawyer in time.