Last updated: 9 June 2026
Key Highlights
- South Korean police have opened the country’s first investigation into domestic Polymarket users for alleged illegal gambling.
- The Gangwon Provincial Police Agency launched the probe at the request of the Korean National Police Agency’s cyber investigation unit.
- Investigators are tracing cryptocurrency transaction records and issuing summonses based on transfer amounts and frequency of use.
- Betting activity on Polymarket markets tied to South Korea’s June 3 local elections reportedly reached hundreds of billions of won.
- The legal basis is Article 246 of the Criminal Act, which covers gambling and habitual gambling offenses.
South Korea’s First Polymarket Investigation
South Korean police have taken their first formal action against domestic users of Polymarket, the US-based prediction market platform, opening an investigation into alleged illegal gambling under the country’s criminal code. The Gangwon Provincial Police Agency initiated the probe at the request of the Korean National Police Agency’s cyber investigation unit.
The investigation is focused on South Korean residents who placed bets on Polymarket, not on the platform itself. Investigators identified users by tracing cryptocurrency transaction records and are issuing summonses based on transfer amounts and how frequently those users accessed the platform. The scale of individual activity is the threshold for being called in for questioning.
Polymarket operates as a prediction market where users buy and sell shares representing the probability of future events. It is based in the United States and operates under US regulatory frameworks. South Korean residents who accessed it were doing so through a platform with no local license, and South Korean law makes no specific allowance for prediction markets of this kind.
The Election Markets That Triggered Enforcement
The investigation is connected in part to prediction markets built around South Korea’s June 3 local elections. Betting activity on those markets reportedly reached hundreds of billions of won, an amount large enough to attract the attention of gambling enforcement authorities. Political event markets are not licensed under South Korea’s gambling framework, which makes activity on them a potential violation regardless of whether users thought of it as wagering in the conventional sense.
Polymarket has seen significant growth in Asia over the past two years, driven by interest in election markets across multiple countries. The platform gained mainstream attention during the 2024 US presidential election and expanded its user base internationally. South Korean users were among those who engaged heavily, particularly around domestic political events.
The Legal Framework and What Users Face
The investigation centers on Article 246 of the Criminal Act, which covers gambling and habitual gambling offenses. A conviction under this provision can carry fines or imprisonment. Because there is no prior case law in South Korea involving Polymarket users on gambling charges, courts and prosecutors have not yet established clear guidance on how the statute applies to prediction market activity conducted through a foreign platform using cryptocurrency.
That lack of precedent cuts both ways. It gives authorities flexibility in how they apply the law, but it also means defendants can argue that the activity falls outside the traditional definition of gambling under Korean law. Prediction markets involve skill and analysis, not just chance, and that distinction has shaped how courts in other jurisdictions have treated similar products.
Investigators are at the summons stage, meaning the case is still early. Whether charges are filed and prosecuted depends on the size of individual betting amounts and the broader prosecutorial appetite for a legal precedent that would set the terms for how prediction markets are treated in South Korea going forward.
Broader Implications for Prediction Markets in Asia
South Korea is not the only Asian market where Polymarket faces regulatory scrutiny. The platform’s growth has put it on the radar of financial regulators in multiple countries who are watching whether prediction markets constitute gambling, securities trading, or something else entirely. The South Korean case is significant because it is the first to reach the level of police investigation targeting retail users rather than simply issuing guidance or blocking access.
For Polymarket users elsewhere in Asia, the South Korean action creates a precedent to watch. If investigators proceed to charges and those charges are upheld, it signals that participation on foreign prediction market platforms through crypto can constitute gambling under local law. That interpretation, if adopted broadly, would affect the growth trajectory of prediction markets across jurisdictions with similar gambling codes.
The TCB View
Prediction markets have been in a regulatory gray zone for years, and this investigation draws that gray zone into sharp relief. The South Korean authorities are not wrong to ask whether buying and selling event probability shares constitutes gambling under existing law. The activity looks enough like wagering in its mechanics that applying Article 246 is not a stretch. What matters now is whether the prosecution has appetite to take this to trial and create binding precedent. A conviction that holds up would effectively make Polymarket inaccessible to South Korean retail users and could push other Asian regulators to follow. A dropped case or an acquittal would set a different precedent. Either outcome shapes how prediction markets develop in Asia, which makes this a story worth following closely beyond the initial headlines.
