Foreign Nationals, Indecent Assault & Sexual Offenses: Standards and Response Strategies from Police Investigation to Deportation

Foreign Nationals Accused of Indecent Assault or Rape in Korea

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If a foreign national is investigated in Korea on allegations of indecent assault, it is not enough to consider only whether criminal punishment may be imposed. In most sex crime cases involving foreign nationals, the process often progresses from a police investigation to criminal proceedings, then to an immigration violation review, and ultimately to deportation. In particular, from an immigration perspective, sexual offenses are classified as serious crimes that may undermine public order. As a result, regardless of the severity of the criminal penalty, the individual’s ability to remain in Korea can become a separate and equally significant issue. Today, we will explain the legal standards and procedures for punishment in cases of indecent assault and other sexual offenses involving foreign nationals, as well as the possibilities for sentence reduction and favorable consideration.

① How Do Punishment Standards Differ for Foreign Nationals Accused of Indecent Assault or Rape?

Indecent assault involving foreign nationals falls under the crime of indecent assault under the Korean Criminal Act, and it is established when physical contact accompanied by violence or intimidation is recognized. Under Korean law, the statutory penalty is imprisonment for up to 10 years or a fine of up to KRW 15,000,000. Rape, on the other hand, refers to a case where sexual intercourse is forced through violence or intimidation, and it is categorized as a serious offense in which a custodial sentence (imprisonment without suspension) is highly likely in principle.

In sex crime cases involving foreign nationals, the boundary between these two crimes often becomes an issue during the investigation process. Depending on factors such as:

The specific charge applied may differ. At this stage, how the case is classified can significantly affect not only the criminal outcome, but also the likelihood of deportation or other immigration consequences thereafter.

② If It’s a First-Time Sexual Offense, Is Leniency Possible?

Many foreign nationals assume, “If it’s my first offense, won’t it be okay?” However, in cases of indecent assault involving foreign nationals, being a first-time offender does not automatically lead to leniency. During the police investigation, authorities typically consider factors such as:

In other words, even if it is a first offense, strict punishment may be imposed if the conduct is deemed serious. Conversely, if the case is relatively minor and the act is found to be impulsive rather than intentional, there may still be room for sentence reduction or a more favorable disposition.

In some cases, quasi-indecent assault may also become an issue. Quasi-indecent assault refers to situations where the offender takes advantage of the victim being in a state of unconsciousness, mental incapacity, or inability to resist.

For foreign nationals, differences in drinking culture or communication styles may result in cases where individuals become charged with quasi-indecent assault without fully realizing that their actions could constitute a criminal offense. However, during the investigation stage, authorities prioritize objective circumstances and the victim’s condition over cultural differences. As a result, both the criminal burden and immigration-related risks—including the possibility of deportation—can increase significantly.

③ What If the Police Investigation Leads to Deportation?

In cases involving indecent assault or other sexual offenses committed by foreign nationals, the conclusion of the criminal procedure does not necessarily mean that all issues have been resolved. The outcome of the criminal disposition is reported to immigration authorities, and an immigration violation review (offender screening) may follow. During this review, immigration authorities comprehensively assess factors such as:

In order to determine whether deportation should be imposed, immigration authorities comprehensively evaluate these factors. Because a history of sexual offenses is considered an extremely unfavorable factor from an immigration standpoint, it is essential to develop a defense strategy that addresses not only the criminal investigation stage, but also the subsequent immigration procedures—including deportation response—from the very beginning.

④ Defense Strategies for Sentence Reduction and Mitigating Disposition

In cases of indecent assault involving foreign nationals, it is not enough to rely solely on a simple statement of remorse in order to expect a reduced sentence or a more favorable disposition. In the criminal procedure, factors such as a detailed and consistent explanation of the circumstances, whether the incident was impulsive rather than premeditated, and the possibility of preventing reoffending play an important role.

At the immigration stage, authorities also evaluate the stability of the individual’s stay in Korea, including their living foundation such as family and employment, as well as whether they are a long-term resident. Therefore, because sex crime cases involving foreign nationals require simultaneous preparation for both criminal defense and immigration offender screening, legal representation that fully understands both criminal punishment and immigration procedures is essential.

At Law Firm Majung, we approach sex crime cases involving foreign nationals—such as indecent assault—from a structured perspective that considers both criminal proceedings and immigration procedures together. From the police investigation stage through to the offender screening process following the criminal outcome, we review the appropriate defense strategy based on the overall flow of the case.

Indecent assault cases involving foreign nationals can develop into a complex sequence of procedures, including a police investigation, criminal sentencing, immigration offender screening, and ultimately deportation. If the response strategy focuses on only one stage, unexpected consequences may arise later in the process. These cases can be decisive: depending on the direction and quality of the early response, the ability to remain in Korea may be affected. We recommend that you calmly review what stage your case is currently at, and what procedures may follow, together with a legal representative.