A phone call. A message from a colleague. A knock on the door that never came. When a family member is placed under criminal detention in Guangzhou or anywhere in China, the first 24 hours are a blur of confusion and fear. Here are five things every family must understand — immediately.

1. Criminal Detention Is Not the Same as Being Charged

Criminal detention (刑事拘留) is an investigative measure. It means the police have a reasonable suspicion that the person has committed a crime and need to investigate further. It does not mean the person has been formally charged or will be prosecuted. The Procuratorate must review the case and decide whether to approve a formal arrest. If the evidence is insufficient, the person must be released. The distinction matters because it means the outcome is not predetermined — and early, effective legal intervention can influence the direction of the case at this critical juncture.

2. The Family Must Be Notified — But There Are Exceptions

Article 85 of the Criminal Procedure Law requires the authorities to notify the detainee's family within 24 hours of detention, specifying the reason for detention and the place of custody. The exception: where notification would hinder the investigation or is impossible. For foreign nationals, consular notification obligations under the Vienna Convention on Consular Relations add a parallel duty. If 24 hours pass without notification, families should not assume the worst — but should proactively contact the public security organ, the relevant detention centre, and their consulate to confirm the situation.

3. Only a Lawyer Can Visit — and Only a Chinese Lawyer

During the criminal investigation stage, family members cannot visit the detainee. Period. The only person who can meet with the detainee is a licensed Chinese defence lawyer. Foreign lawyers cannot appear in Chinese criminal proceedings. This is not optional — it is a mandatory rule of Chinese criminal procedure. The single most important action a family can take within the first 24-48 hours is to retain qualified Chinese defence counsel.

4. The First 37 Days Are Critical — The Golden Window for Bail

From the date of criminal detention, the public security organ has up to 30 days (extendable for certain categories) to either apply to the Procuratorate for formal arrest or release the suspect. The Procuratorate then has 7 days to decide. Together, this 37-day period is the "golden window" for seeking release on bail (取保候审). Once formal arrest is approved, the procedural posture of the case changes significantly, and applications for release become more difficult. Engagement of counsel within this 37-day window — and ideally within the first few days — is essential to maximising the prospects of securing release pending trial.

5. What Families Do in the First Days Matters — and Mistakes Can Cause Harm

In the immediate aftermath of a detention, families sometimes take actions that — while well-intentioned — can damage the case: attempting to contact witnesses directly (risk of being accused of interference); paying money to someone who claims to have "connections" (scams are common); or destroying documents the family believes might be harmful (this is itself a criminal offence). The safest course is to engage counsel, follow their advice, and direct all substantive questions about the case through them.

Related: 15 Steps When Arrested →  |  Bail Guide →  |  Detention Timeline →