"Yes." Wang Chuanxing responded immediately and asked again: "Then do we still watch the surveillance?

D

Jiang Yuan thought for a while and said: "Where did Ren Kuangshan cheer for the first day? You haven't decided yet, have you?"

"No." Wang Chuanxing shook his head: "Someone on the task force explained that maybe they brought their own gasoline in advance, or buried the gasoline somewhere early, and then went over to refuel themselves."

"It is also a possibility." Jiang Yuan did not deny it, only said: "Whether he rides or not, if he wants to leave Changyang City, the easiest time to find him is on the first day. The range will be too large until the second day.

Already."

Jiang Yuan paused and said: "The investigation was too hasty that day, so we still have to look back."

The most information-rich and valuable stage is also the first day. The so-called golden 24 hours refers not only to the investigation within these 24 hours, but also to the value of the evidence at this time.

There are too many gas stations around a city, coupled with various vehicle jam points or other surveillance videos, it is impossible to watch the surveillance on that day on the day of the incident, as time does not allow.

Even if it is a gas station that is limited to one direction, it is impossible for Jiang Yuan to watch the surveillance video all day long. A common sense that does not need to be explained is that if a person with a single screen does not watch the surveillance video quickly, each person can only watch one surveillance video a day.

If you want to add a screen or speed up, there is bound to be a possibility of neglect.

Therefore, for most cases related to picture investigation, it is hoped that the time and location are as accurate as possible. With an accurate time and place, it may only take more than ten minutes to solve a case related to picture detection, while difficult picture detection cases often take

It took 2,000 hours of work.

Jiang Yuan directly opened the temporary +1, and then started to do trajectory analysis on the computer map.

The three days of investigation were not fruitless. Surveillance videos of Ren Kuangshan were also found at some road jams.

It was a bit surprising that Ren Kuangshan was not found at any nearby gas stations.

Some people speculated that Ren Kuangshan had prepared gasoline in advance, and it was not without reason.

However, from the perspective of the murderer, the flexibility of this is too poor, which is equivalent to arriving at a certain location and digging. Gasoline has a certain volatility, and it cannot be done too far in advance, and there are restrictions on buying it·

——

Jiang Yuan thought while watching the video.

At this time, in a wide-angle video, Jiang Yuan saw a figure walking quickly past the edge.

"Here, playback." Jiang Yuan immediately stopped.

The picture detective policeman next to him quickly turned the button counterclockwise, and saw the people on the screen also moving back.

You can't see the face or even the head of the person on the screen. They just pass by the edge of the wide-angle lens, and the figure is still a little distorted.

Jiang Yuan said without hesitation: "It's up to him to find all the other videos from this gas station!"
Chapter completed!