Ye Qing understood that Da Fei and Li Lianshan's capture was most likely arranged by Zhao Chengshuang. Moreover, it conveyed a message: Zhao Chengshuang's situation must still be stable; otherwise, he wouldn't be able to command his people from afar.
Of course, if the Ding family decided to go all out against Ye Qing, this was probably the best that Zhao Chengshuang could do. By having Da Fei and Li Lianshan detained at the police station, it seemed as if they were under investigation, but in reality, it was a way to protect them. This also relieved Ye Qing from worrying about the two of them.