Footage also showed the "button room", where three prison officers press a button at the same time to open the trap door, so that it is not clear which button opened the door.

电视画面上还有一个“按钮室”。在这个房间，三个处刑官同时按下按钮打开活板门，因此并不清楚是哪个按钮打开这个门的。