Before Qin Zhiyou received the phone call, the plainclothes officer on stakeout had already equipped himself with a full set of devices. As soon as the call was connected, he would immediately begin to follow up.
The kidnappers were clever as well— they didn't just use any old phone to make the call carelessly. They utilized internet dialing with a virtual number, and the server was on the other side of the ocean, making it very difficult to track down specific details for the time being.
However, the investigation technology on this side was improving. Even if internet dialing was used, if the call exceeded 20 seconds, the general location could still be pinpointed. Therefore, when Qin Zhiyou picked up the call, the plainclothes officer beside him was instructing him with mouthed words: "You must delay the time!"
