Chapter 242 (2/2)

First of all, he must determine whether the loss of Han Chenxi was premeditated or random.

If it is the former, there must be traces of the tracker in the video, and the scope can be narrowed down a lot;

if it is the latter, it really means looking for a needle in a haystack.

After the video was sent, Liu Yanbo began to see Han Shuilan and her mother and son.

They didn't go to many places, but the amount of an hour and a half was still a little large. Fortunately, Liu Yanbo had a pair of special eyes, which not only had excellent eyesight, but also had the abnormal ability of never forgetting and capturing a moment's picture.

The picture was played five or six times faster than usual. It was like walking a lantern. It was dazzling. In addition to Liu Yanbo, who was concentrating on watching and analyzing at the beginning, pan Yuyi had already given up and started to serve tea and water.

The office became so quiet that even Zhou Ming didn't say anything.

Young master Zhou is a bit self willed and arrogant, but he is also a master of priorities. Besides, the more Liu Yanbo shows concern for Han Shuilan, it is also good news for him.

Half an hour later, Liu Yanbo watched all the surveillance videos of Han Shuilan's mother and son -

there was no sign of them being followed.

This is good news and bad news.

The advantage is that it shows that Han Chenxi's loss was not planned by someone intentionally, which basically excludes the direction of the enemy's family, and the child's life safety coefficient has increased a lot in theory;

the disadvantage is that Liu Yanbo can only look for a needle in the sea.

With hundreds of cameras and an hour or two of video recording, it's not like you can watch it in a while and a half.

But time will not wait for others.

According to popular opinion, the 24 hours after a person's disappearance is a golden time to find someone, but in Liu Yanbo's mind, the so-called golden time is only four hours at most——In the case of man-made disappearances, especially in such public places where people come and go, once the suspects get hold of them, they will naturally escape the scene according to the planned route. However, in order to avoid leaving the scene without appearing abnormal and causing suspicion from others, they will generally stay in the area near the scene for a period of time, and then leave completely After escaping from the scene, they will be transferred to a place that they think is temporarily safe for the first time to prepare for dressing up. The distance of this transfer will not be very long, but the distance will never be too short. The place will be selected in a relatively remote place, and the driving distance is estimated to be about an hour. However, half of the experienced kidnappers will spend about half an hour in the middle of the city to make sure that there is no tail. After

then, the real transfer. The destination of the transferred suspects will be their final place. Basically, they will go out of the city. If they are coastal cities, they will go to sea. In order to prevent the matter from expanding to the point of full closure and inspection, this must be done within two hours before the final transfer can be completed.

In four hours, it is a Branch Bureau in the jurisdiction that has applied at all levels, asked for traffic control, and even the military units to help After all kinds of complicated procedures, it may take time to complete the complete closure of the city.

These four hours are the golden time for the suspects to escape, that is, the golden time for Liu Yanbo to find them.

More than four hours later, one second is a multiplier variable.

It has been two hours since Han Chenxi was lost. In Liu Yanbo's heart, there are only two hours left for him.

Thinking of this, he couldn't help but feel a little sad and worried and pinched his eyebrows. Finally, he got up and said, ”Captain pan, can you do me a favor and help me find a way to put out all the videos of the cameras together.”