Li Chuhai didn't dare to look for Commissioner Cai and the rest because they knew what kind of person Ye Jian's mother was. Hence, he went to look for Commander Liu and asked him to shoot her in the back to solve his problem.
Hence, when Commander Liu saw Ye Jian's mother meeting Sun Yaozu, he believed that she was a spy. How could Commander Liu, who wasn't in the same team as his mother, know the truth?
At that time, Li Chuhai had been transferred to Commander Liu's team for more than a year. How could Commander Liu suspect Li Chuhai? Who would have the guts to suspect their superior?
Who would dare?
No one dared to!
In that era, there was only absolute obedience. How could the subordinates question the orders of their superiors and verify the authenticity in private?
No!
No one would do that!