C337 No explanation

The identity that Zhang Zitao came into contact with at the start was Bai Yan's spy.

As a police officer, it was normal for Bai Yan to have eyes and ears.

If it had been anyone else, they would have found a loophole and the matter would have been exposed soon enough.

Even Yang Chen's three bodyguards who were involved in this matter, didn't have the qualifications to take it on.

If they could