Nikkei’s report at https://www.nikkei.com/article/DGXZQOUE211MN0R21C24A0000000/ and a BeInCrypto follow-up at https://beincrypto.com/japan-kobayashi-arrest-monero-fraud/ are the only substantive references preserved in this package for the Japanese police stablecoin money laundering case, so the publishable takeaway stays narrow: Japanese authorities reportedly uncovered a laundering matter in which stablecoins were said to be involved, but the brief does not retain enough verified detail to safely add names, amounts, or charges beyond that headline-level claim.