Are You Looking For This?
When Yun Jian had gone back to the martial club, staying behind Ge Junjian, she saw Ai Guoxun standing frozen at the domed entrance before she could see said door.
There was a clack—Ai Guoxun's pistol had slipped off his slacked grip to the floor while he was completely stupefied.
"What is it? What happened?" Officer Bao panicked, raising his police baton alongside other police officers, as he looked over the door in apprehension.
From where they were, they could only see the dome door but not the inside of the martial club. Ai Guoxun stood in front of the dome entrance, where everyone could see him.
This caused Officer Bao to think that Ai Guoxun had dropped his pistol in fright when he went to the door, potentially because he saw the criminals inside aiming their guns at him. That was why the police brought up their batons.
After all, they did not know Yun Jian and were doubtful about what she said earlier.