Foreigners' rights in criminal proceedings in Vietnam are not an abstract concept. They mean being able to call an interpreter before giving any statement, being able to engage a lawyer from the very first working session, and whether a family abroad can find out where their relative is being held. In a country with a different language and different procedures, a single hasty statement in the first few days can turn a person from a bystander into the accused, and push an entire case in an unfavorable direction.
Summoned to work with the police, is a foreigner required to answer everything they are asked? When a relative is detained, how soon can the family visit, and what can someone abroad do when contact is lost entirely? Can a consular office handle the whole case in place of a lawyer? These are the questions most foreigners and their families raise only after events have unfolded, at their most anxious moment. This article analyzes the legal framework in force in 2026, the rights the law grants foreigners at each stage of the proceedings, the visitation and consular contact regime during detention, and the mistakes that keep those rights from being used in time.
The legal framework defining foreigners' rights in criminal proceedings
The foundational principle is that criminal acts committed on Vietnamese territory are resolved under Vietnamese law, and proceedings involving foreigners are conducted in accordance with the international treaties to which Vietnam is a party, or on the principle of reciprocity. This means foreigners are not placed outside the system; they enjoy precisely the procedural rights that the Criminal Procedure Code grants every accused person, alongside support channels reserved for foreign nationals.
The 2015 Criminal Procedure Code is currently applied in its 2026 consolidated version, updated through eight amendments, including the 2025 amending law that reorganized the bodies conducting proceedings. One point should be clarified at once: the fact that a person is held in custody or detained does not at all mean that person is guilty. The presumption of innocence is the pillar of the entire process.
For foreigners, this principle carries great practical weight. While the investigating authority is still gathering evidence, the accused retains the status of a person not yet guilty, together with the full rights to give statements, to remain silent on matters unfavorable to themselves, and to engage defense counsel. In addition, if a foreigner falls within the category enjoying diplomatic or consular immunity, the matter is resolved under the relevant international treaty or international custom; this is a narrow exception that requires case-by-case assessment by a lawyer.
Three foundational rights: defense, interpretation, and the right against self-incrimination
There are three rights foreigners should grasp even before understanding the procedure in detail, because these are the rights used earliest and most easily missed.
The first is the right to defense. The law clearly recognizes that an accused person has the right to defend themselves or to engage a lawyer or another person as defense counsel, and the proceedings authority is responsible for notifying, explaining, and ensuring the exercise of this right (Article 16, Criminal Procedure Code 2015). The right to defense is not a privilege granted to the well-off; it is the default right of anyone who is accused.
The second, and especially important for foreigners, is the right relating to language. All proceedings are conducted in Vietnamese, but a participant has the right to use the spoken and written language of their own ethnicity, and in that case an interpreter is mandatory.
This is the legal footing on which a foreigner may decline to give statements in a language they are not fluent in, request an interpreter, and require that every record be translated back before signing. An interrogation record signed in haste, before its contents are fully understood, can become evidence that is very hard to rebut later.
The third is the right not to be compelled to give testimony against oneself. This right is recognized simultaneously for persons in custody, the accused, and defendants, meaning it travels with a foreigner through every stage of the case.
In other words, remaining silent on potentially unfavorable matters is not an act of obstruction; it is a lawful right. How to respond, and how much to disclose, should be weighed together with defense counsel rather than decided alone in a state of distress.
Foreigners' rights at each stage of the proceedings
A criminal case moves from receiving the crime report to instituting proceedings, investigation, prosecution, and on to first-instance and appellate trial. Since 2025, the bodies conducting proceedings have been streamlined: investigating authorities now have two levels, and certain powers have been assigned to commune-level police, but the procedural rights of the accused have not been narrowed. What matters for a foreigner is knowing, at each stage, what capacity they are in and what they can do.
When merely invited to work as a related person or a person reported on, a foreigner is not yet the accused; they have the right to give statements, to stay silent on unfavorable matters, and to consult a lawyer before and during the session. When held in an emergency or arrested with a custody decision, the person becomes a person held in custody, entitled to know the reason, to receive procedural decisions, and to defend themselves or engage defense counsel (Article 59). When a decision to prosecute is issued, the person becomes the accused, with a broader catalog of rights (Article 60), and when the court decides to bring the case to trial, they become the defendant, entitled to take part in the hearing, to argue, and to make the final statement (Article 61).
A common misconception is to wait until trial to need a lawyer. In reality, the investigation and interrogation stage is when statements and the case file take shape. The law allows defense counsel to participate very early.
Defense counsel also has the right to be present when statements are taken from an arrested person or a person in custody, and during interrogation of the accused (Article 73). This presence helps ensure the client is not subjected to coerced or prompted testimony, and that everything is recorded accurately. As for time, many families fear a case will drag on endlessly, but the law sets specific limits on detention for investigation.
These periods may be extended under the law, and the investigation period is regulated separately (Article 172). Knowing the time frame helps a family understand where the case stands in the process, rather than guessing in anxiety.
Visits, detention, and consular contact for foreigners
This is the group of questions that worries families abroad the most, because once a relative is detained, contact is almost entirely cut off. The 2025 Law on the Execution of Custody, Temporary Detention and Residence Prohibition, in force from 1 July 2026, sets out the visitation regime clearly.
Defense counsel may meet the person in custody or detention in the detention facility's working room to conduct the defense, and this meeting is not subject to the visit quota applied to relatives. For foreigners, the law sets aside a specific provision on consular contact and contact with humanitarian organizations: a foreign person in custody or detention may have consular contact during the detention period, carried out under the international treaties to which Vietnam is a party or by agreement between the two countries, with the authority handling the case deciding the specific timing (Clause 5, Article 22).
It is important to understand the consular office's role correctly to avoid false expectations. Within their remit, a diplomatic or consular mission can usually:
- Visit their own national in detention and monitor the conditions of detention and the person's health;
- Provide a list of local lawyers for the family to choose from;
- Serve as a channel of communication between the detained person and the family abroad.
However, a consular office does not conduct the defense, does not intervene in the substance of the case, and does not decide on release or sentence. Those matters belong to defense counsel and to Vietnam's proceedings authorities. This is a boundary many families recognize only after losing valuable time.
Legal risks and common mistakes in practice
Most of the harm to foreigners in a criminal case comes not from a lack of rights, but from rights not being used in time. A few mistakes recur.
The first mistake is believing the embassy or consulate will handle everything. As analyzed above, the consular role is to support and monitor within limits; it does not replace defense counsel. Relying entirely on the consular channel often lets the investigation stage pass with no one providing legal protection.
The second mistake is misreading detention as guilt, and from there giving up or confessing wholesale to get it over with. The presumption of innocence lets the accused stay proactive until a judgment takes effect, and the right against self-incrimination exists precisely to protect them from unfavorable statements made out of distress or out of misunderstanding a question across the language barrier.
The third mistake is signing a record or document that has not been translated and is not fully understood, or accepting an interpreter of uncertain quality. A single mistranslated legal term can change the very nature of a statement. The fourth mistake is leaving the family abroad in an information vacuum, not knowing where their relative is held, when locating the place of detention and registering the defense can begin from passport information alone.
DEDICA's role in protecting foreigners' rights
In a criminal case with a foreign element, DEDICA accompanies the client throughout, from the investigation stage to first-instance and appellate trial. When a family knows only that a relative has been arrested but has lost contact, DEDICA's lawyers can, from passport information, contact the competent authorities to determine where the person is being held in custody or detention, register the defense, and become a reliable channel of information for the family abroad. During the investigation, the lawyer attends interrogation sessions to ensure the client is not subjected to coerced or prompted testimony and can exercise their rights, while monitoring that every record is properly made and accurately translated.
DEDICA also advises on and supports procedures to change a preventive measure, such as applying for release on bail or guarantee where there are grounds, builds a defense strategy toward acquittal if the client is wrongly accused, or proposes changing the charge or penalty bracket and applying mitigating circumstances where there is a basis. In the opposite situation, where an individual or business in Vietnam is the victim of an act committed by a foreigner, DEDICA protects the victim's interests throughout the proceedings.
Conclusion
Foreigners' rights in criminal proceedings in Vietnam can be summed up in a few core points. First, acts on Vietnamese territory are handled under Vietnamese law, but foreigners enjoy full procedural rights and are presumed innocent until a judgment takes effect. Second, the three rights to use earliest are the right to defense, the right to an interpreter when using one's own language, and the right not to be compelled to testify against oneself. Third, a lawyer may take part from the moment of arrest or custody, and this is the decisive stage, not something to postpone until trial. Fourth, when detained, relatives may visit according to the statutory quota, and foreigners may have consular contact under international treaties, but a consular office cannot replace defense counsel. The most practical step is to engage a lawyer as early as possible, ideally from the very first working session or first custody, so that no statement or document takes shape without legal protection.
If you, or a relative, are a foreign national being invited to work with the authorities, held in custody, or detained in a case in Vietnam, do not let the most important stage pass without protection. Contact DEDICA so that a lawyer can ascertain the status of the matter, register the defense, and advise on the steps to take right away, even when you are abroad and cannot be present in Vietnam.
This article is for reference based on the law in effect at the time of writing. Each case depends on its specific file, evidence, and procedural stage; please consult a DEDICA lawyer for advice tailored to your situation.
