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법률칼럼Legal Insight2026. 05. 19

Why Unlicensed Driving by Foreign Nationals Can Lead to Prison Sentences and Police Investigation

  A single violation can change your entire daily life.   Driving under the influence or operating a vehicle without a valid license is often thought to result only in fines or license-related penalties. However, in cases of unlicensed driving involving foreign nationals, the situation rarely ends there.   When drunk driving enforcement or a traffic accident is involved, the matter can escalate beyond criminal liability to include immigration procedures, potentially leading to prison sentences or forced deportation, depending on the outcome.   In particular, statements and responses given during the initial police investigation have a significant impact on later decisions, making it difficult to treat the matter lightly.   If your goal is to reduce penalties while maintaining your immigration status, it is wise to prepare a response strategy early with the assistance of an experienced legal professional.    

Contents

 
1. Why unlicensed driving and drunk driving enforcement are not minor mistakes for foreign nationals
 
2. Criminal penalties for foreign nationals: even fines alone can threaten residency status
 
3. From the police investigation onward, statement strategy is critical
 
4. Sentence reduction is not about sympathy—it requires a fact-based strategy
 
5. After enforcement, criminal defense and immigration response must be prepared simultaneously
   

1. Why unlicensed driving and drunk driving enforcement are not minor mistakes for foreign nationals

  Driving a vehicle without a valid driver’s license or operating a vehicle while alcohol remains in the body cannot be regarded as a minor mistake and is subject to criminal punishment.   In particular, when unlicensed driving by a foreign national is discovered together with drunk driving enforcement, the situation can become significantly more complicated.
  • Unlicensed driving: Up to 1 year of imprisonment or a fine of up to KRW 3 million
  • Drunk driving: Punishable from a blood alcohol concentration of 0.03% or higher; the likelihood of imprisonment increases at 0.08% or above
  The issue does not end simply with the absence of a license. Driving with an expired international license, driving after a license suspension or revocation, or driving without ever having obtained a license all constitute unlicensed driving. If a traffic accident occurs under these circumstances, strict procedures begin from the police investigation stage.   In addition, if there is a prior history of drunk driving violations, the offense may be treated as a repeat violation, resulting in aggravated penalties. Depending on how the case is handled at the initial stage, the severity of punishment can vary significantly.    

2. Criminal penalties for foreign nationals: even fines alone can threaten residency status

  When a foreign national receives a criminal penalty in South Korea, it is difficult to consider the matter fully resolved even after the sentence becomes final. If certain thresholds are met, immigration authorities conduct an additional review of residency status, which may result in a deportation order.   Maintaining a visa may become difficult if any of the following apply:
  • 01: A single fine of KRW 3 million or more
  • 02: A sentence of imprisonment or detention
  • 03: Cumulative fines exceeding KRW 5 million within the past five years
In practice, many cases repeatedly exceed these thresholds.   For example, a blood alcohol concentration of 0.08% or higher at the time of drunk driving enforcement, or a history of repeated unlicensed driving by a foreign national, can easily push a case beyond the criteria. If a traffic accident or refusal to submit to alcohol testing is added, the likelihood of a prison sentence increases significantly.   Ultimately, efforts to reduce sentencing must go beyond seeking leniency in punishment alone. It is essential to adopt a strategy that also considers residency status and the possibility of maintaining a visa in the future.    

3. From the police investigation onward, statement strategy is critical

  In cases involving unlicensed driving by foreign nationals or drunk driving enforcement, what is said during the initial police investigation can significantly affect the course of the case. Statements made at this stage are often used as key evidence in subsequent court proceedings, offender screening, and immigration reviews.   In particular, the following types of statements can make the situation more unfavorable:
  • 01: Explanations that conflict with the actual facts
  • 02: Statements that may suggest intentional wrongdoing
  • 03: Unnecessary remarks that bring attention to past violations
  When such statements are repeated, later submissions—such as letters of remorse or proof of completing education programs—may be viewed as lacking credibility.   Extra caution is required in cases of unlicensed driving involving foreign nationals. Issues such as misunderstandings about international license validity, lack of familiarity with administrative rules, or language interpretation differences can cause even simple statements to be misconstrued.   If a traffic accident is involved or there is a prior history of drunk driving enforcement, the possibility of a prison sentence must also be considered. For this reason, even a single statement at the police station should be made as part of a carefully prepared strategy.    

4. Sentence reduction is not about sympathy—it requires a fact-based strategy

  In situations where unlicensed driving by a foreign national or drunk driving enforcement has led to discussions of a possible prison sentence, it is difficult to change the outcome through mere appeals for sympathy. To seek a reduced sentence, objective grounds—not subjective explanations—are required.   Key factors that can actually influence the court’s assessment include:
  • Reason for driving: Whether it was simple transportation or an emergency situation
  • License status: Suspension, revocation, or never having obtained a license
  • Circumstances of enforcement: Whether the driver stopped voluntarily or attempted to evade enforcement
  • Presence of a traffic accident: Whether damage occurred and whether recovery efforts or settlement were made
  In addition, factors such as first-time offense status, blood alcohol concentration, distance driven, attitude of remorse, and completion of traffic safety education are also considered.   In cases involving foreign nationals, it is particularly important to review whether any miscommunication during enforcement or lack of understanding of administrative procedures resulted in unfavorable misunderstandings.   What is required to reduce sentencing is not emotion, but prepared evidence and concrete strategy. Clearly identifying factors that can genuinely mitigate punishment and organizing the case accordingly is the core of an effective defense.    

5. After enforcement, criminal defense and immigration response must be prepared simultaneously

  Cases involving unlicensed driving by foreign nationals, drunk driving enforcement, or traffic accidents often do not end with a simple fine. For foreign nationals, such cases may involve the possibility of imprisonment and can also affect immigration screening and visa status.   In particular, the first statement given during the police investigation is often reflected not only in court proceedings, but also in offender screening and visa review. For this reason, setting the right direction from the earliest stage is extremely important.   In situations like these, assistance from professionals who can address both criminal defense and immigration procedures can provide meaningful support.   We provide tailored, step-by-step assistance—on the criminal side, we help organize statements in unlicensed driving cases involving foreign nationals, prepare letters of remorse, and build grounds for sentence mitigation; on the immigration side, we prepare offender screening materials, organize reasons for continued residence, and respond to prevent removal orders.   Early response can change the outcome. We strongly recommend approaching the investigation stage with caution and a well-prepared strategy.     Multilingual consultation available in English and Chinese.   Professional interpreters assist from the first consultation to the conclusion of the case.   Offices in Seoul, Daejeon, Busan, Daegu, and Gwangju   Don’t face the legal system alone. Let Majung fight for you!
       

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