Is the Victim Statement Enough to Convict in Korea?

Short answer. It can be, and that surprises people from common law systems. Korean law has no rule requiring corroboration. Article 307 of the Criminal Procedure Act requires that facts be established by evidence and that a criminal fact be proved to the point of no reasonable doubt, and Article 308 leaves the weight of evidence to the judge’s free evaluation. A complainant’s testimony is evidence. Whether it alone proves the case beyond reasonable doubt is a question about its credibility, not about a missing second witness.

What Korean law says

Article 307(1): the finding of facts must be based on evidence. Article 307(2): the finding of a criminal fact must reach proof to the degree of no reasonable doubt.

Article 308: the probative value of evidence is left to the free judgment of the judge.

Criminal Procedure Act, Articles 307 and 308. Act No. 21241, in force from 1 July 2026.

What usually happens in practice

Because there is no corroboration rule, these cases are decided on the consistency and coherence of accounts rather than on a count of witnesses. What the court examines is whether the account has stayed stable across tellings, whether it fits the undisputed surrounding facts such as timings, locations and messages, and whether there is anything in the circumstances that would explain a false account.

That has a practical consequence for a person accused. Attacking the complainant personally rarely works and often backfires. What does work is the ordinary, unglamorous material: message threads with timestamps, transport and card records, and the accounts of people who saw the surrounding moments. Those either fit the allegation or they do not, and the court can see that without being asked to dislike anyone.

The standard in Article 307(2) is the real protection, and it is the same standard applied to any other charge. A case that rests on one account is not for that reason a weak case, and it is not for that reason a strong one either.

What you should do next

Preserve the objective record immediately: messages, transport, payments, photographs with metadata.
Write your own timeline while it is fresh, before your account has to be given formally.
Do not contact the complainant to test their account. It converts a defence into a new offence.
Build the case around what fits the surrounding facts, not around the complainant’s character.

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Written and reviewed by Soobin You, Attorney at YUSU Lawfirm. Former prosecutor. Last legal review: 12 September 2026.