The men of the third team returned to the police van.

Zheng Kaixuan sat in the second row, spread out a map of the Moon River, and drew a circle with a pencil: "This is where we are now, located in the lower reaches of the Moon River, and the width of the riverbed is more than 100 meters. ”

Han Bin looked at the map and pointed to the river upstream:

"The Moon River is more than 30 kilometers long, and the river is not a straight line, there are always 8 miles upstream, there will be a nearly 90-degree angle, the basin area is nearly 200 square kilometers, it is not easy to determine the specific place where the body is thrown. ”

"There are dozens of villages on both sides of the river, and the amount of work to investigate is too great. Li Hui echoed.

"Since it is difficult to investigate, let's start looking for the most likely place to dump the body. Zheng Kaixuan took a pencil and drew a × on a bridge across the river upstream:

"There are two bridges across the river in the upper reaches of the Moon River, so let's start with these two bridges. ”

"Team Zheng, do you have any basis, have you found any clues, why do you think the suspect would throw the body from the bridge. Sun Xing wondered.

Zheng Kaixuan did not find any new clues, this was just a speculation based on his experience, and asked rhetorically: "Sun Xing, if you are a criminal suspect and you want to dump the body in the river, which position will you choose?"

Sun Xing pondered for a moment: "Just like Han Bin said, this is a scenic spot nearby, and there are many people playing, I definitely won't throw the corpse here; I should go up along the river, find a place where there is no one, and throw the corpse into the river." ”

"There is a certain degree of difficulty in this way of throwing corpses, there is no straight road on both sides of the Moon River, your car can't drive through it at all, and it will be very inconvenient to carry the corpses; Zheng Kaixuan analyzed the corpses thrown in the river, and pointed to the bridge across the river:

"It's much easier to throw a body on the bridge, the car drives directly onto the bridge, and the trunk may be only a few meters away from the edge of the bridge, and the most critical point is that it can be thrown directly into the center of the river, where the water level is deep and the heavy object sinks directly to the bottom. ”

Han Bin listened with relish, the possibility of throwing the body on the bridge is very high, if the rope of the headless corpse system is not broken, the body will not be washed downstream by the current, and this case will not be found.

"Amazing, worthy of Team Zheng, I didn't expect it. Li Hui's sycophants were very direct, without any cover-up.

Zheng Kaixuan was speechless, can he have a little technical content.

"Team Zheng, your speculation is very reasonable, and I also think that the suspect may have thrown his body on the bridge, but it is not easy to determine this. Han Bin took out a cigarette and handed it out to everyone.

"If you can go directly to the river to salvage it, maybe you can find the head of the corpse. Wei Zimo proposed.

"The water level of the Moon River is high, and the current is relatively fast, if you want to go down to the river to fish, the upstream gate must be closed, if you can't come up with evidence, based on my personal speculation, it is difficult to apply to the higher leadership. Zheng Kaixuan said.

The function of the gate is to control the water level and flood discharge, and if something goes wrong, it is not a trivial matter, and it is not something that can be moved if you want to.

"No wonder the suspect likes to throw corpses into the river, the river is a natural barrier, we can only watch and search if we want. Sun Xing sighed.

"Fortunately, it's not the Yellow River or the Yangtze River, otherwise we would have to die of this heart. Li Hui said with a smile.

"I knew that we should have found the source of the body, maybe the family of the deceased has already reported missing. Wei Zimo said.

"Don't talk about these useless things, think more about clues. Zheng Kaixuan scolded.

"There should be surveillance on the bridge. Sun Xing said.

"It's not certain, and besides, there are dead ends in the surveillance, who will throw the body at the camera. Wei Zimo felt that it might not be big.

After everyone was silent for a moment, Han Bin spoke: "I have a stupid way, maybe I can find some clues." ”

"It doesn't matter if it's spiritual or stupid, as long as you can find a clue, say it. Zheng Kaixuan said.

"There is monitoring on the bridge, naturally it is the easiest to view the bridge monitoring, but if there is no monitoring on the bridge, we can check the monitoring around the bridge, according to the classification of different driving directions, record the average time of the car between the two monitoring, even if it is easier to throw the body on the bridge, the suspect also has to observe the surroundings, the car will definitely not drive too fast, and then throw the body when no one is around, plus parking, carrying, throwing down the river, it also takes a certain amount of time, and it must take more time than other vehicles traveling in the same direction. Han Bin said.

"Tsk, that's stupid. Li Hui spread his hands.

"It's a bit stupid, but as long as we check carefully, we may be able to find clues. Wei Zimo muttered.

"Where are there so many clever ways in the criminal investigation industry, and the suspects are not stupid, and they have long avoided the methods that can be easily caught. Zheng Kaixuan agreed.

According to his experience in handling cases, more than 70 percent of the cases were solved by stupid methods.

"These two bridges, one is about 4 kilometers upstream, one is about 11 kilometers upstream, and there is a turning backwater bay about 8 kilometers from here, if it is thrown from the bridge 11 kilometers upstream, there is a certain possibility that it will run aground in the backwater bay, so it is more likely to throw the body on the bridge 4 kilometers away from here, let's focus on the police to investigate this bridge first. Zheng Kaixuan arranged.

Everyone nodded, agreeing with Zheng Kaixuan's arrangement.

"Team Zheng, I suggest that before the official comparison of surveillance, copy the surveillance video around the two bridges, the time for the deceased to be killed is about 20 days, and the time for throwing the body may also be about 20 days, and the monitoring hard disk is likely to be overwritten. Han Bin said worriedly.

"Yes, very well thought out. Zheng Kaixuan nodded and commanded:

"Han Bin and Li Hui collected surveillance near the 4-kilometer bridge; I took Wei Zimo and Sun Xing to collect surveillance near the 11-kilometer bridge; by the way, I visited the surrounding people, around August 30, did I see anything abnormal.

"Yes. ”

Everyone agreed and went their separate ways.

Wei Zimo drove the car and put Han Bin and Li Hui near the four-kilometer bridge, while Zheng Kaixuan and the three continued to rush to the bridge upstream.

After Han Bin and the others got out of the car, they first observed the bridge, and there was a stone tablet standing next to it, on which were written three big characters Tong'an Bridge, and there were several rows of small characters next to it, which was the introduction of the bridge and the construction time.

Tong'an Bridge is nearly 100 meters long, there are two rows of lanes on the left and right sides, there are sidewalks on the outermost side, and there is a guardrail about one meter high on the outside of the bridge to prevent pedestrians from accidentally falling.

Han Bin and the others walked around the bridge, the water under the bridge was turbulent, and occasionally a boat passed by, but they didn't find anything abnormal.

To Han Bin's delight, a surveillance monitor was installed on the north side of the bridge, which is likely to photograph the suspect's vehicle, but this monitoring does not belong to the traffic police force, but to the jurisdiction of the traffic bureau.

Han Bin immediately contacted Zheng Kaixuan and asked him to come forward to obtain monitoring, and Zheng Kaixuan made a call to the Transportation Bureau, which was more useful than him and Li Hui running in person.

Subsequently, Han Bin and the others searched the roads on both sides with the bridge as the center, and copied the surveillance of the nearby shops on the street.

Twenty days have passed since the body was dumped, so much time has passed, and after visiting the circle, almost no one remembers what happened during that time.

When I returned to the substation, it was already past six o'clock in the afternoon.

Han Bin and the others did not go back to the office of the second group, but went to the temporary office of the special case team, which is also in the criminal investigation building, but the second group is on the second floor, and the temporary office is on the third floor, which is more clean.

The office area is very large, there are more than a dozen desks, Zheng Kaixuan and others have not returned, and a group of people are not in the office, only Han Bin and Li Hui are empty.

The two were not idle, and began to sort out the collected surveillance, and only made a topographic map of the vicinity of the bridge, pasting the number of each surveillance, so that it was more convenient to compare.

These are just the monitoring of shops, and they will have to call up Skynet monitoring for a while, if they are not sorted out and classified, they will be confused first, not to mention comparing the time taken by each car to cross the bridge.

At around seven o'clock in the evening, Zheng Kaixuan and the three returned to the temporary office, and in addition to bringing back the surveillance near another bridge, they also went to the traffic management bureau and brought back the video surveillance of the Tong'an Bridge.

Li Hui immediately checked the surveillance of Tong'an Bridge, but what was depressing was that the surveillance of Tong'an Bridge 20 days ago had been covered, and the surveillance video on September 4 could only be seen at the earliest.

This is just the beginning, Li Hui checked some shop surveillance, most of the surveillance hard disk storage is limited and can only be kept for about fifteen days, and the previous surveillance video has been overwritten.

Zheng Kaixuan's expression was as usual, he had seen a lot of this situation, and the clues of many cases were broken after checking, he asked Sun Xing to send the video to the technical team, trying to restore the covered surveillance content, and he didn't have much hope for this.

Fortunately, Skynet monitoring and storage can last for about a month, and new clues can be found......

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