NextFin News - South Korean law enforcement has initiated a sweeping investigation into domestic users of Polymarket, the world’s largest decentralized prediction market, signaling a significant escalation in the global regulatory squeeze on crypto-based betting. The Gangwon Provincial Police Agency confirmed on Friday that it is probing whether local participants violated the country’s stringent anti-gambling statutes by wagering on real-world events, including political outcomes and sporting matches, using digital assets.
The investigation follows a preliminary review by South Korean media regulators in late May, which questioned whether Polymarket’s operations constituted an unlicensed gambling business. According to reports from Bloomberg and local outlets like Chosun Biz, the police are specifically scrutinizing the platform’s provision of Korean-language support and its accessibility to local residents. Under South Korean law, gambling is strictly prohibited for citizens both at home and abroad, with the exception of a few state-sanctioned outlets such as the Kangwon Land casino and specific lotteries.
Polymarket has consistently argued that its platform functions as a decentralized exchange for "information markets" rather than a traditional sportsbook. The company maintains that users trade shares in future outcomes with one another, creating a transparent forecasting tool rather than betting against a "house." However, South Korean authorities appear skeptical of this distinction. The probe aims to determine if the use of USDC—a dollar-pegged stablecoin—to purchase these shares bypasses the Capital Markets Act or falls under the Criminal Act’s definition of habitual gambling.
The legal pressure in Seoul mirrors recent actions by the U.S. Commodity Futures Trading Commission (CFTC), which has sought to curb election-related betting on similar platforms. For Polymarket, South Korea represents a high-stakes battleground due to the country’s outsized influence in the global crypto market. Data from the Korea Financial Intelligence Unit suggests that South Korean retail investors are among the most active globally in high-leverage and speculative digital asset trading, making the region a critical, albeit risky, growth hub for decentralized finance (DeFi) protocols.
Legal experts in Seoul suggest the outcome of this probe could set a precedent for how "prediction markets" are classified across Asia. If the police recommend prosecution, it would likely force Polymarket to implement stricter geofencing for South Korean IP addresses, similar to the restrictions it currently maintains for U.S. users. Conversely, a decision to treat these activities as financial derivatives could open a narrow path for regulated operations, though such a shift would require a massive overhaul of existing gambling and financial legislation.
The investigation remains in its early stages, with police currently identifying high-volume traders and analyzing transaction flows on the Polygon blockchain. While no formal charges have been filed against individual users as of June 5, the move has already sent a chill through the local crypto community. The broader market is now watching to see if other jurisdictions follow South Korea’s lead in treating decentralized forecasting as a criminal enterprise rather than a technological innovation.
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