The multi-billion-dollar prediction market Polymarket is currently accepting bets on German regional elections later this year, even though using such sites is illegal in Germany. Prediction markets, which allow people to bet anonymously on anything from military strikes to the second coming of Jesus Christ, have gathered ever more attention in recent years and caused headaches for gambling regulators around the world. In the US, the Justice Department last year dropped its regulatory investigation into Polymarket, one of the world's market leaders along with Kalshi, a move that has led to their expansion in the US. But access to Polymarket has been blocked in several European countries, where governments regard them as unlicensed gambling platforms. Both the Polymarket and Kalshi websites remain accessible in Germany, even though the country's gambling authority has declared that using them is illegal.…