On the day of the civil servant interview, the examiner decides which examination room to go to by drawing lots, and the candidates also need to decide the examination room by drawing lots, which is very random, and everything is unknown before drawing lots. It is impossible to contact the examiner in his own examination room in advance. Even if it happens, every move in the examination room is monitored and the invigilator is present. It's hard to see anything unusual under double supervision.
The test questions are confidential. When the questioner learned that the civil servant interview topic was needed, he had lost contact with the outside world and handed in all communication equipment until the interview was over.
The examiner didn't have a chance to meet the test questions until the day of the exam. When he arrived at the examination room, he could only open the sealed bag in front of the candidates and the invigilator to see the specific contents. I believe all the students who have participated in the college entrance examination know very well that the test questions and answer sheets are sealed in sealed bags, and there is no leakage at all.