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Being kept overnight at a police station in Vietnam often causes foreigners significant anxiety, fear, and concern about the risk of arrest, detention, or deportation. Does this situation mean that a crime has already been committed? How are the legal rights of foreigners protected under Vietnamese law in such cases?
In practice, being kept overnight at a police station does not always mean that a foreigner has committed a crime or has been formally arrested. However, this is also not a situation that should be taken lightly.
Without a clear understanding of the legal basis and one’s rights, foreigners may easily find themselves in a disadvantaged position when working with investigative authorities.
The key is to properly understand the legal nature of being “kept overnight”, so that appropriate actions can be taken to protect one’s legitimate rights and interests.
Under Vietnamese law, arrest is a strict criminal procedural measure that must be based on lawful grounds and an official decision issued by a competent authority.
Meanwhile, being held temporarily or required to stay for further questioning may arise from various reasons and does not necessarily constitute a criminal arrest.
That said, the line between these measures can be quite “thin,” especially for foreigners who are unfamiliar with the Vietnamese language and legal procedures. This is precisely where legal counsel plays a crucial role.

To properly assess the situation and provide reassurance, it is important to look at the current legal grounds that allow the police to keep an individual overnight. The following bases are provided under the Vietnamese Criminal Procedure Code 2015 (as amended) and related applicable regulations.
Under the Criminal Procedure Code, competent authorities may hold a person in urgent cases if there are grounds to believe that the person:
In such cases, a foreigner may be kept overnight for initial verification purposes. However, emergency holding is strictly limited in duration and must comply with procedural approval requirements.
Important note: being held in urgent custody does not automatically mean that criminal charges will follow. Many individuals are released once the facts are clarified.
Pursuant to Article 117 of the Criminal Procedure Code, temporary detention is a measure used to:
The initial period of temporary detention may not exceed three days, with possible extensions as permitted by law. During this period, the detainee is typically required to remain at a police station or detention facility, including overnight.
This situation commonly arises for foreigners involved in cases such as:
Not all cases of overnight holding involve criminal matters. Under the Law on Handling of Administrative Violations, police may temporarily hold individuals in certain exceptional situations in order to:
Examples include:
However, administrative holding is also subject to strict legal limits, and foreigners’ fundamental rights must still be respected and protected.

This is an area that many foreigners are not clearly informed about, leading to fear and passivity. Under Vietnamese law and international conventions to which Vietnam is a party, foreigners have the following key rights:
Police authorities are obligated to clearly inform the individual of the reason for being held, the legal basis, and their procedural status (e.g., witness, person held, person temporarily detained).
If you do not understand Vietnamese, you have the right to request an interpreter.
Foreigners have the right to seek legal counsel from the very early stage, without waiting until formal charges are initiated.
In practice, early involvement of a lawyer significantly reduces legal risks, helping avoid unfavorable statements caused by misunderstanding, stress, or language barriers.
In accordance with international practice, a foreigner who is held has the right to request notification of their Embassy or Consulate in Vietnam.
From DEDICA Law’s practical experience, many cases become complicated simply because foreigners work with the police without timely legal advice.
Common risks include:
Possible consequences may include:
DEDICA Law is a Ho Chi Minh City–based law firm with extensive experience advising and protecting the rights of foreigners in criminal and pre-criminal matters in Vietnam.
Our legal support includes:
Legal disclaimer: Each case involves specific circumstances. This article is for general reference only and does not constitute a guarantee of outcomes or immunity from criminal liability.
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