How did the detention center find out that lawyers met illegally?

Found it through monitoring equipment. According to the inquiry, China Travel Service. Com official website shows.

1. One is the remote video interview system before the lawyers' meeting, which confirms the lawyer's identity through face recognition technology.

2. Secondly, the monitoring detachment and detention center monitor the whole process through the monitoring camera of the conference room and observe the situation of the conference room at all times.

3. Finally, if violations are found during the meeting, they will be confirmed as soon as possible and notified to the Municipal Lawyers Association.