Entrepreneur and convicted drug trafficker Tomáš Jiřikovský donated nearly 500 BTC (approximately CZK 1 billion) to the Czech Ministry of Justice. A blockchain analysis revealed these coins originated from the darknet marketplace Nucleus Market, drawing FBI interest and prompting an investigation by the Czech National Centre Against Organised Crime (NCOZ). The case’s international dimensions—including the possibility that Jiřikovský might seek refuge in jurisdictions like South Africa—add further layers of complexity .