1. Inquire at the local public security organ: Go to the public security organ in the place of detention, such as the police station or detention center, and ask the relevant staff to provide the basic information of the inquired prisoner. The staff will provide relevant information according to the situation.
2. Call the prison administration to inquire: You can call the prison administration in the corresponding area to provide the staff with the basic information of the prisoner you want to inquire, and the staff will provide relevant inquiry results and information.
3. Inquiring about prisoners' information online: Some areas provide systems for inquiring about prisoners' information online. You can log in to the information inquiry system of related prisoners, enter relevant information according to the prompt, and the system will display the information of related prisoners.