South Korea refers 18 Polymarket users to prosecutors over $12.7M bets
By Crypto Wire
September 17, 2026
South Korean police have referred 18 Polymarket users to prosecutors in an illegal-gambling probe that booked 26 people over roughly 17.6 billion won (~$12.7 million) in event-contract bets, with the largest individual stake near 5.7 billion won (~$4.1 million), according to National Police Agency data reported to Democratic Party lawmaker Yoon Kun-young’s office and covered by Cointelegraph and The Asia Business Daily. For Plain English Policy readers, this is the on-chain prediction-market test case—not a new NFT mint.
Gangwon Provincial Police’s Cyber Investigation Unit had the 26 bookings as of September 15, with 18 forwarded to prosecutors. Investigators identified users by analyzing publicly available blockchain transactions and open-source intelligence techniques—Polymarket’s noncustodial design does not keep a conventional real-name user directory. Authorities argue staking assets on uncertain real-world outcomes meets illegal gambling under South Korea’s Criminal Act; users counter that the contracts are crypto-based derivatives investment. That clash is the policy core.
The referral wave follows an August 18 access block after the Korea Communications Standards Commission (KCSC) labeled Polymarket an illegal gambling environment. KCSC cited winner-takes-all economics, market operation, crypto deposits/withdrawals/settlement, and fee collection. Polymarket argued it offers no Korean-language service or KRW rails and does not custody funds via smart contracts; the commission rejected those technical defenses as insufficient to escape domestic law.
AXIS Law managing attorney Tae-Lim Kim, quoted via Asia Economy/Cointelegraph, said the activity could meet gambling’s legal elements and that calling the products “prediction derivatives” may be a weak criminal defense—though the ability to trade and exit positions before settlement could still matter to a court. Attribute that framing to the reported legal commentary, not to a final judgment.
Important caveat for Thursday’s file: the 18 referrals are not convictions. Crypto Times notes materials do not show courts have yet ruled whether Polymarket’s contracts are gambling under Article 246. Prosecutors still review the cases. The June Gangwon probe—South Korea’s first illegal-gambling inquiry into local Polymarket users at the National Police Agency’s request—is the procedural runway into these referrals.
For NFT collectors, the Plain English Policy read is jurisdictional exposure on public chains. If police can map wallets to residents via transparent transaction graphs, marketplace bidding, mint participation, and prediction-market side bets share the same OSINT surface. A noncustodial UI does not equal immunity when a national commission has already blocked access and police treat event contracts as gambling. Collectors in Korea—and anyone routing through Korean IP/fiat on-ramps—should treat Polymarket-style venues as legally contested, not as “just another DeFi app.”
Prediction markets have become part of crypto’s cultural feed—election odds, Fed paths, even NFT-adjacent meme outcomes—traded like order books rather than sportsbooks. South Korea’s referrals test whether that culture survives when a jurisdiction reads the same contracts as Criminal Act gambling and uses public chain data as the suspect list. For collectors, the lesson sits beside Clarity Act and Bitcoin-reserve files already on the Policy desk: venue design and local classification can matter more than the token ticker on your bid.
What Thursday’s file proves is narrow. Police data reported to a lawmaker’s office shows 26 booked Polymarket users, 18 referred, ~17.6B won in combined stakes. What it does not prove is that every Korean prediction-market trader will be charged, or that NFT floors will reprice on this alone. Watch prosecutor charging decisions and any court test of order-book probability contracts versus Article 246 gambling elements.
For 8bitcrypto readers on September 17, the clean Policy line is South Korea moving from site blocks to named referrals—public blockchain footprints turning prediction-market culture into a criminal-procedure story.
Disclaimer: This article is provided for informational and educational purposes only. It does not constitute financial, investment, legal, or trading advice. The NFT market is highly volatile, and past performance is not indicative of future results. Readers should conduct their own research and consult qualified professionals before making any decisions related to digital assets. The cover image for this article may have been created using artificial intelligence (AI).
