Chapter 154

Three teams back to the police van.

Sitting in the second row, Zheng Kaixuan spread out a map of the moon river and drew a circle with a pencil: "this is where we are now. It's located in the lower reaches of the moon river. The width of the river bed is more than 100 meters."

Han Bin observed a map and pointed to the river course in the upper reaches:

"the moon river is more than 30 kilometers long, and the river course is not straight. If you walk 8 miles upstream, there will always be an angle of nearly 90 degrees, and the drainage area is nearly 200 square kilometers. It is not easy to determine the specific location of the corpse."

"There are at least dozens of villages on both sides of the river, and the workload of investigation is too heavy." Li Hui echoed.

"Since the investigation is very difficult, let's start from the most likely place to throw the body." Holding a pencil, Zheng Kaixuan drew an X on a river crossing bridge upstream:

"there are two river crossing bridges in the upper reaches of the moon river. Let's start from these two bridges."

"Team Zheng, do you have any basis, or do you find any clues, why do you think the suspect will throw a corpse from the bridge?" Sun Xing doubts.

Zheng Kaixuan did not find any new clues. This is based on his experience, and he asked, "Sun Xing, if you are a suspect, you have to cast your body in the river, where will you choose?"

Sun Xing pondered for a moment: "as Han Bin said, it's a scenic spot nearby. There are a lot of tourists. I'm sure I won't throw a corpse here. I should walk up the river, find a place where there is no one, and throw the corpse into the river."

"There are some difficulties in this way of throwing corpses. There is no straight road on both sides of the moon river, so your car can't drive through, and it's very inconvenient to carry the corpses. Moreover, the river on both sides of the moon river is very steep, so even if you can barely transport the corpses to the river, you just throw them to the edge of the river. The water level is very shallow, and the corpses are tied with heavy objects, so they are likely to run aground and have been found for a long time." Zheng Kaixuan analyzed the river corpse throwing, and pointed to the river crossing bridge:

"it's much easier to throw corpses on the bridge, the car directly drives on the bridge, and the trunk may be only a few meters away from the edge of the bridge; the most important point is that it can be thrown directly to the center of the river, the water level is deep, and the weight is tied directly to the bottom."

Han Bin listened with relish. The possibility of throwing a corpse on the bridge is very high. If the rope of the headless corpse with heavy objects is not broken, the corpse will not be washed downstream by the current, and this case will not be found.

"Fierce, worthy of Zheng team, how did I not expect." Li Hui's flattery is very direct and does not mean to cover up at all.

Zheng Kaixuan is speechless. Can he be a bit technical.

"Team Zheng, your conjecture is very reasonable. I also think the suspect may throw his body on the bridge, but it's very difficult to make sure." Han Bin takes out his cigarettes and gives them a round.

"If you can go down the river and salvage it, maybe you can find the head of the body." Wei Zimo proposed.

"The water level of the moon river is relatively high, and the current is relatively fast. If you want to fish in the river, the upstream gate must be closed. If you can't get any evidence, it's difficult to apply to the higher authorities just by my own speculation." Zheng Kaixuan said.

The function of the gate is to control the water level and flood discharge. If something goes wrong, it's not a trivial matter. It doesn't move when you want to.

"No wonder suspects like to throw bodies into the river. The river is a natural barrier. We can only watch and search." Sun Xingtan said.

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

"If we had known, we should have searched for the source of the corpse. Maybe the family members of the deceased have reported missing." Wei Zimo said.

"Don't talk about useless things. Think about clues." Zheng Kaixuan scolded.

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

"It's not sure. Besides, surveillance also has dead ends. Who will throw a corpse at the camera?" Wei Zimo thinks it's unlikely.

After a moment's silence, Han Bin said, "I have a stupid way. Maybe I can find some clues."

"Don't care whether it's smart or stupid, just tell me if you can find a clue." Zheng Kaixuan said.

"If there is monitoring on the bridge, naturally it is the easiest way to check the monitoring on the bridge. 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, we can record the average driving time between the two monitoring. Even if it is easier to throw a corpse on the bridge, the suspect has to observe the surrounding area. The car will not drive too fast, and we can wait until there is no one Throwing corpses, together with parking, carrying and throwing into the river, also takes a certain amount of time, which is definitely more time than other vehicles driving in the same direction. " Han Bin said.

"Tut Tut, this method is stupid enough." Li Hui showed his hand.

"Stupid is a bit stupid, but as long as we check carefully, maybe we can really find clues." Wei Zimo muttered.

"where is the clever way of criminal investigation? The suspect is not stupid. They can be easily caught by the law. They have long ago avoided it." Zheng Kaixuan agreed.

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

"One of the two bridges is about 4 km upstream, the other is about 11 km upstream, and there is a turning backwater Bay about 8 km away from here. If the corpse is thrown from the bridge 11 km upstream, it may be stranded in the backwater Bay, so it is more likely to throw corpses on the bridge 4 km away from here. Let's focus on the police to investigate the bridge first." Zheng Kaixuan arranged.Everyone nodded and agreed with Zheng Kaixuan's arrangement.

"Team Zheng, I suggest that before the official comparison of monitoring, we copy the monitoring video around the two bridges. The time for the dead to be killed is about 20 days, and the time for the corpse to be thrown may be about 20 days. The monitoring hard disk is likely to be covered." Han Bin worries.

"Yes, very thoughtful." Zheng Kaixuan nodded and said:

"Han Bin and Li Hui collected the monitoring data near the 4 km bridge; I took Wei Zimo and Sun Xing to collect the monitoring data near the 11 km bridge; by the way, I visited the people around. Did you see anything unusual around August 30.

"Yes."

Everyone agreed to act separately.

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

After getting off the bus, Han Bin and his wife first observed the bridge. Next to the bridge, there was a stone tablet with three big characters on it, Tongan bridge, and several rows of small characters, which were the introduction and construction time of the bridge.

Tongan bridge is nearly 100 meters long, with two rows of lanes on both sides, sidewalks on the outermost side, and guardrails about one meter high on the outer side of the bridge to prevent pedestrians from accidentally falling.

Han Bin and his wife walked around the bridge. There was a strong current under the bridge. Occasionally a boat passed by, but nothing unusual was found.

To Han Bin's delight, a monitoring device is installed on the north side of the bridge, which is likely to capture the suspect's vehicle. However, the monitoring does not belong to the traffic police team, but to the traffic bureau.

Han Bin immediately contacted Zheng Kaixuan and asked him to come forward to get surveillance. Zheng Kaixuan's call to the Transportation Bureau is more useful than his and Li Hui's personal visit.

Later, Han Bin and his wife searched the roads on both sides with the bridge as the center, copying the monitoring of nearby shops.

Twenty days have passed since the corpse was dumped. It's too long. After a tour, few people remember what happened during that time.

Back to the branch, it's more than six o'clock in the afternoon.

Instead of going back to the office of group 2, Han Bin went to the temporary office of the special case team, which is also in the criminal investigation building, except that group 2 is on the second floor and the temporary office is on the third floor, which is more clean.

The office area is very large, with more than ten 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.

They were not idle, and began to sort out the collected monitoring, and only made a topographic map near the bridge, and pasted the number of each monitoring, which was more convenient for comparison.

These are just the monitoring of shops. Later, Skynet will be called to monitor them. If they don't sort them out, they will be confused first, not to mention comparing the crossing time of each car.

At about 7 p.m., Zheng Kaixuan returned to the temporary office. In addition to bringing back the surveillance near another bridge, they also went to the Traffic Management Bureau to bring back the video surveillance of Tong'an bridge.

Li Hui immediately checked the monitoring of Tong'an bridge. However, it is depressing that the monitoring of Tong'an bridge 20 days ago has been covered, and only the monitoring video on September 4 can be seen at the earliest.

This is just the beginning. Li Hui also checked the monitoring of some shops. Most of the monitoring hard disks are limited and can only be kept for about 15 days. The previous monitoring videos have been covered.

Zheng Kaixuan looks as usual. He sees a lot of such cases, and the clues of many cases are broken after checking. He asks Sun Xing to send the video to the technical team and try to recover the monitoring content covered. For this, he doesn't give much hope.

Fortunately, Skynet's monitoring storage can last about a month, and it can also find new clues