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In today’s era of economic integration, Vietnam is rapidly expanding its global connections. However, alongside economic growth comes a sensitive legal issue: foreigners trading illegal substances in Vietnam.
Vietnam maintains one of the strictest criminal policies in Southeast Asia regarding illegal substances. Acts such as trading, transporting, or storing prohibited goods—especially narcotics—are severely punished under the 2015 Criminal Code.
Many people ask: What penalties can foreigners face? Does foreign nationality change criminal liability? Is imprisonment inevitable? This article clarifies the legal framework and explains your rights and possible legal defenses.
The answer is yes.
Under the territorial principle of criminal law, any crime committed within Vietnamese territory is subject to Vietnamese law, regardless of the offender’s nationality. Therefore, foreigners trading illegal substances in Vietnam are prosecuted under the same Criminal Code as Vietnamese citizens.
Foreign defendants are:
Investigated, prosecuted, and tried in Vietnam
Subject to the same penalty brackets
Not allowed to invoke foreign law to avoid liability
Relevant provisions include:
Article 190 – Production and trading of prohibited goods
Article 251 – Illegal trading of narcotics (if applicable)
Certain individuals with diplomatic or consular immunity may be handled through diplomatic channels instead of standard criminal procedures. However, such cases are extremely rare.
In most cases, foreigners trading illegal substances in Vietnam face strict criminal prosecution, especially in organized or cross-border crimes.

Vietnamese law provides tiered punishment levels depending on the seriousness of the offense.
Penalties range from several years of imprisonment to life imprisonment or even the death penalty in extremely serious drug-related cases.
Key factors affecting sentencing:
Type of prohibited substance
Quantity and transaction value
Scale of operation
Role in the criminal network
Cross-border or organized involvement often leads to harsher penalties.
Besides imprisonment, offenders may face:
Monetary fines
Asset confiscation
Deportation after serving the sentence
For foreigners, deportation has long-term consequences, including restrictions on future entry, business activities, and investment opportunities in Vietnam.
Not all cases involve intentional violations. Some foreigners unknowingly become involved through:
Acting as intermediaries
Lending bank accounts or warehouses
Signing contracts without due diligence
Claiming “lack of knowledge” is extremely difficult during criminal investigation.
In Vietnam’s increasingly complex legal environment, foreign investors and businesspeople must exercise caution. Conducting proper legal due diligence and consulting lawyers early can significantly reduce risk.

In cases involving foreigners trading illegal substances in Vietnam, having a lawyer involved from the very beginning is a crucial factor. A lawyer not only protects your lawful rights but also helps clarify your role and level of involvement, thereby minimizing legal risks.
Contact DEDICA for the most appropriate legal strategy tailored to your specific situation.
Contact DEDICA Law Firm for in-depth legal consultation.
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