Mr. Zhang indeed held poison in his mouth, but because Yun Luo acted swiftly, he dislocated Zhang's jaw in an instant. Zhang had not managed to bite into the poison packet before he was caught red-handed.
With his jaw dislocated, naturally, Zhang couldn't speak. Yun Luo didn't expect him to say anything at this point. He gestured to the people behind him and ordered, "Bind him with iron locks, and take him back to the Governor's Office, to be handed over to the lord."
Someone stepped forward, took out the iron chains they carried with them, and deftly bound Mr. Zhang. Then, he was escorted out of Jinzun Square.
Yun Luo sheathed his sword, his gaze swept around the room, and then he headed directly towards the private room he had noticed earlier, and commanded, "Search. Anyone suspicious, bind them and send them back to the Governor's Office."
The response came promptly as actions to interrogate and thoroughly investigate commenced.