Foreigners Trading Illegal Substances in Vietnam: What Are the Penalties?

26/02/2026

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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.

Does Vietnamese Law Apply to Foreigners?

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)

Diplomatic Immunity Exceptions

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.

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What Are the Criminal Penalties?

Vietnamese law provides tiered punishment levels depending on the seriousness of the offense.

Prison Sentences Based on Nature and Quantity

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.

Additional Penalties and Deportation

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.

Common Legal Risks in Practice

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.

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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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