A legal expert has warned that receiving USDT transfers from unknown sources could potentially lead to criminal charges. USDT, a popular stablecoin, can originate from legitimate digital asset transactions or from illicit activities such as telecom fraud, online gambling, drug trafficking, and illegal fundraising. These illicitly obtained USDT, often referred to as "black USDT," are traceable on the blockchain and are monitored by global law enforcement agencies, including Chinese authorities. In criminal cases, the key subjective element for conviction is "knowledge." Individuals who frequently engage in large USDT transactions, trade at rates significantly different from market prices, or quickly disperse received funds may be deemed to have "subjective intent" and could face legal consequences. This highlights the importance of due diligence in cryptocurrency transactions to avoid potential legal pitfalls.