Selling usdt received black money and was detained.

Legal analysis: Those who are detained in criminal detention should truthfully confess their crimes, actively cooperate with the investigation, and entrust a lawyer to represent them to safeguard their legitimate rights and interests. The crime of helping information network criminal activities is an independent crime of providing others with technical support such as internet access, server hosting, network storage and communication transmission, or providing assistance such as advertising promotion, payment and settlement, knowing that others use information network to commit crimes. Legal basis: Article 287 bis of the Criminal Law of People's Republic of China (PRC) knowingly provides technical support such as Internet access, server hosting, network storage and communication transmission. , or provide advertising, payment and settlement assistance, if the circumstances are serious, they shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention and shall also or only be fined.

if a unit commits the crime mentioned in the preceding paragraph, it shall be fined, and the directly responsible person in charge and other directly responsible personnel shall be punished in accordance with the provisions of the first paragraph.

whoever commits the acts mentioned in the preceding two paragraphs and constitutes other crimes at the same time shall be convicted and punished in accordance with the provisions of heavier punishment.