Legal basis: Article 6 of the Code of Conduct for Prison Prisoners strictly abides by the following disciplines during serving their sentences: (1) Do not move beyond the warning line, the designated area and out of supervision; (two) do not hide cash, knives and other contraband; (three) do not contact with outsiders, ask for, borrow, exchange or transfer money; (four) not to pass letters, cash and other items without permission during the meeting; (five) are not allowed to use heat preservation, climbing and digging items without authorization; (6) Do not steal or gamble; (seven) do not fight, self injury; (eight) do not gang up to bully others; (nine) shall not spread criminal means or instigate others to commit crimes; (ten) do not practice and spread harmful qigong and cults.