Legal basis: Article 19 of the Measures for the Administration of Compulsory Isolation Drug Rehabilitation Centers by Public Security Organs stipulates that compulsory isolation drug rehabilitation centers should be divided into different wards and managed separately according to the sex, age, illness and drug use type of drug addicts. Compulsory isolation drug rehabilitation centers implement graded management that gradually adapts to the society according to the different stages of drug treatment and the performance of drug addicts. Article 41 of the Measures for the Administration of Compulsory Isolation Drug Rehabilitation Centers by Public Security Organs stipulates that the operation procedures of drug rehabilitation and nursing in compulsory isolation drug rehabilitation centers shall be implemented in accordance with relevant state regulations. Article 42 of the Administrative Measures for Compulsory Isolation and Drug Rehabilitation by Public Security Organs stipulates that compulsory isolation and drug rehabilitation centers should carry out targeted physical therapy, psychotherapy and physical rehabilitation training according to the types and addiction degree of drug addicts who take or inject drugs, and establish personal medical records. Article 50 of the Measures for the Administration of Compulsory Isolation Drug Rehabilitation for Public Security Organs stipulates that compulsory isolation drug rehabilitation centers should be equipped with classrooms, psychological consultation rooms, conversation and education rooms, recreation rooms, skill training rooms and other functional rooms to carry out education and rehabilitation activities. Article 57 of the Measures for the Administration of Compulsory Isolation and Drug Rehabilitation by Public Security Organs stipulates that compulsory isolation and drug rehabilitation centers shall organize drug addicts to carry out cultural and sports activities and physical exercise. Under normal circumstances, do not less than two hours of outdoor activities every day.