According to Article 34 of the Measures for the Implementation of the Regulations of People's Republic of China (PRC) Detention Center,
Communication between criminals and their close relatives living in China must be approved by the case-handling organ, and the request for meeting must be approved by the competent bureau or director of the public security organ or the state security organ at or above the county level.
Meetings and correspondence between criminals and their close relatives living in Hongkong, Macao, Taiwan Province Province and foreign countries, or between criminals of foreign nationality and their close relatives, guardians and members of embassies and consulates in China must be approved by the public security departments and bureaus of provinces, autonomous regions and municipalities directly under the Central Government or the national security departments and bureaus.
Extended data:
Power of suspects in detention centers:
The criminal suspect who enters the detention center is being examined, and it is absolutely forbidden to contact anyone outside, but he has the right to meet a lawyer. Defense lawyers can meet and correspond with criminal suspects and defendants in custody. Other defenders, with the permission of the people's courts and people's procuratorates, may also meet and correspond with criminal suspects and defendants in custody.
If a defense lawyer holds a lawyer's practice certificate, a law firm's certificate, a power of attorney or a letter of legal aid to ask for a meeting with the criminal suspect or defendant in custody, the detention center shall arrange the meeting in time, which shall not exceed 48 hours at the latest.
In cases of crimes endangering national security, terrorist activities and particularly serious bribery crimes, defense lawyers should obtain permission from the investigation organ when meeting with the criminal suspect in custody during the investigation. The investigation organ shall notify the detention center of the above situation in advance.
When a defense lawyer meets a criminal suspect or defendant in custody, he can understand the case and provide legal advice. From the date when the case is transferred for examination and prosecution, the relevant evidence may be verified with the criminal suspect or defendant. Defense lawyers are not monitored when meeting with criminal suspects and defendants.
Baidu Encyclopedia-Measures for the Administration of Criminal Execution in Detention Center