Although they knew some of the people, it was still necessary to probe where probing was due, and intimidate where intimidation was required, lest anyone get confused about their status and start causing trouble.
Zhou Gu clearly wasn't the only one with this idea; when he stepped forward, two other men did as well.
One was Zhou Yong, and the other was Li Yongfeng.
Zhou Yong had just been standing next to Village Chief Zhou Zhengwen, so it wasn't hard to guess that he had been signaled to step forward. Li Yongfeng, on the other hand, likely acted on his own initiative.
When the village chief saw three people stepping forward, he instantly grasped the reason, even though he originally intended only for Zhou Yong to do so.