Serious Crime Unit 1

Chapter 751 Traps (12)
"Yes, we grow vegetables around this house." He pointed to the green vegetables outside the door and said.

"Did you see any strangers that morning? Or notice anything unusual?"

"This...I can't remember clearly..."

"Please help me think about it. This matter is very important to us. If the clues you provide can help us solve the case, we will give you a lot of bonuses." Wu Jiang saw that he was honest and responsible, so he encouraged him. Such people often Being timid and afraid of getting into trouble, with the mentality that doing more is worse than doing less.

"How much is the bonus?" When he mentioned the bonus, he became more energetic.

"It depends on how valuable the clues you provide are, ranging from several thousand to tens of thousands, or even 10,000+. Isn't this not a lot for a hard-working vegetable farmer?"

"Of course, even if our family worked hard for a year, we could only save 8 to [-] yuan."

"Can you recall what happened that morning?"

"Yeah." He nodded, frowned, took a deep breath from the cigarette, and fell into deep thought. The white smoke enveloped his face and became erratic. Then he threw away the cigarette butt and held his hair tightly with both hands. , thinking hard.

7
"Oh, I remembered. When I was watering the water that day, I saw a man wearing a peaked cap and carrying a big black backpack walking towards the river. I had never seen this man before. I thought he was someone who likes fishing. Where is the person?" He suddenly opened his eyes and said excitedly.

"What clothes and pants is he wearing?"

"Wear a black tracksuit."

"What shoes?" Wu Jiang knew this was difficult for him, but it was necessary to ask.

"Shoes? I didn't see them... No, I can't remember clearly. Who would pay attention to what shoes he was wearing?" He seemed dissatisfied with his memory.

"About how many meters away is he from you?"

"He passed between my vegetable field and my uncle's vegetable field. He is about 50 meters away from me, right? How about I take you to the field to measure it?"

"Okay, thank you. The information you provided is very important..." Wu Jiang stood up and followed Pei Changqing out, asking as he walked, "Xiao Pei, how old is that person?"

"This...I can't say, I'm probably close to 30 years old."

"how tall?"

"He is definitely taller than me. I am 170 centimeters, and he should be 175 centimeters."

"Do you remember his appearance?"

"If I could see him, I should be able to recognize him."

Pei Changqing walked to a ditch in a vegetable field, then stopped, pointed at the ditch and said, "I was standing here and saw the stranger walking over the field." He faced south and pointed to the ditch not far away. Tiankan said.

Wu Jiang visually estimated that the distance between Pei Changqing and the stranger at that time was about 50 meters. It is indeed difficult to remember a person's appearance at such a distance, unless he develops a photographic memory.But Wu Jiang did not give up: "About what time was it?"

"Around 5:[-], because I have just finished watering three ridges of vegetable fields. I use a plastic pipe to water. It takes about [-] minutes to water one ridge of vegetable fields."

"We hope you can come back to the criminal police station with us and draw a picture of the stranger you see. Can you please?"

"I want to take care of the vegetable garden..." "We will pay you wages. Don't worry. It may not take half a day to complete the painting. We all use computers to draw pictures now, so it will be quick." Wu Jiang looked at it sincerely.

"Okay." He nodded, walked out of the vegetable field, and followed Wu Jiang and Shi Wei toward the road 500 meters away. Their police car was parked beside the road.The highway is Provincial Highway 201, and there are surveillance cameras on the provincial highway. If Pei Changqing can tell the suspect's general appearance, he may be able to find him from the surveillance video.

They brought Pei Changqing to Wen Xiaorou and asked him to describe the general outline of the suspect's face. Pei Changqing only said: wide forehead, high nose bridge, big eyes, deep eye sockets, short hair, white skin, thick lips, and peaked cap. Wen Xiaorou adjusted the data and found 10 similar looks.

Then Pei Changqing was asked to select the most similar person, and then make modifications. It took Wen Xiaorou 5 hours to draw the suspect's facial features. Because it was a three-dimensional portrait, it was more realistic than an artificial portrait.After the drawing is completed, print out the drawing and hand it to each group member.

However, none of them knew the suspect, which was expected. Jiang Yiming asked Wen Xiaorou to upload the portrait and basic information of the suspect to the Internet, conduct a reward and assist in the investigation, and give heavy rewards to those who provide clues, hoping to identify him from the vast crowd. find out.

Wen Xiaorou led the visual investigation team to check the surrounding surveillance videos of Yang Changan's death scene. Because there were a large number of videos within a 500-meter radius, the visual investigation team did not have enough manpower. In order to solve the case as soon as possible, Jiang Yiming transferred five people from the No. 2 Serious Crime Team Criminal police, cooperate with the visual investigation team to watch the video.They checked for nearly a week and read all the surveillance videos, but found nothing.

Jiang Yiming asked them to expand the time and continue watching the video, because the suspect might hide in the blind spot of the surveillance camera for two or three days before running out, or even more days. In this case, they would not be able to see the suspect.Therefore, Wen Xiaorou led 11 people from the visual investigation team to conduct an expanded review of the surveillance video. However, after checking for a week, they found nothing.

"Xiaorou, have you watched all the surveillance videos around you?" Jiang Yiming asked.Everyone was sitting in the small conference room for a meeting. Xiao Ke and Lu Yingying were not there, but Shi Wei, Liu Xiaowei and Wen Xiaorou were added.

"Yes, we centered on the scene and radiated 500 to 800 meters outward. We found a total of 29 surveillance videos. These videos are like an airtight net, tightly surrounding the scene. Even if a little rabbit comes from We will also see anyone running in the video, let alone a suspect who is about 180 centimeters tall. Therefore, I think the suspect should not have appeared in the video." She spoke in a slower tone, as if she was thinking. As she spoke, she was afraid of saying something wrong. After all, she rarely attended such meetings.

"So, what method do you think the suspect will use to avoid the surveillance video and flee the scene?"

"There is no other way except to grow wings and fly away," she said firmly.

"Growing wings? This is almost impossible. Because there are no high-rise buildings around, it is extremely difficult to escape the scene using gliders, super balloons, hot air balloons, etc. What's more, it was raining heavily that day and there was strong wind. Even if the suspect used the help of These things would have put his life in great danger when escaping the scene, so I think this hypothesis can be ruled out," Jiang Yiming replied.

"Is the suspect still hiding around the scene and hasn't left yet?" Shi Wei asked.

"The surveillance blind spot is only 0.8 square kilometers. Even if he knows the distribution of the monitors very well and can avoid the monitors and hide in the blind spot, he cannot risk being searched by us at any time. I think this assumption is almost Impossible." Zhou Ting said.

"Then the only way for the suspect to escape the scene is through the sewer." Wu Jiang said.

"Escape from the sewage pipe? Isn't the risk greater? The methane in the sewer is enough to poison him." Liu Xiaowei felt that Wu Jiang's statement was not credible.

"The suspect can put on a fully enclosed chemical protective suit, so that he will not be poisoned, and then escape calmly. Therefore, Xiaorou and the others cannot find the suspect from the surveillance video. Last time Zhang Bing helped Zhang Wen go under the Qianjiang Bridge To collect a ransom of 30 yuan, Zhang Bing escaped from the sewage pipe wearing chemical protective clothing." Luo Jin supported Wu Jiang's idea.

Fully sealed chemical protective clothing is worn by firefighters when entering fire or accident sites involving hazardous chemicals or corrosive materials, as well as toxic and harmful gases or accident sites, searching for fire sources or accident points, rescuing victims, and conducting firefighting and rescue operations. Protective clothing.It is very easy to buy. It is sold in physical stores and online. The price is only 3000 yuan.

"If the suspect escapes from the sewage pipe, then he will definitely have to pry open the manhole cover, so there will be traces. We only need to look at the manhole covers around the scene to find some traces and clues. At the same time, we will check all the manhole covers near the scene. Visit the residents to see if there is anyone of similar height to the suspect." Jiang Yiming asked Liu Xiaowei to take the No. 2 Crime Team to handle the matter.

Jiang Yiming told Liu Xiaowei: In order to implement it as soon as possible, it is necessary to bring more people. If the manpower is insufficient, the police from the local police station will be asked to cooperate, because they are more familiar with the terrain and residents, making it easier to visit.Liu Xiaowei promised to take people to do it immediately.

Jiang Yiming called the Municipal Drainage Engineering Management Office and asked them to fax him the schematic diagram of the drainage system pipelines around the site, so that the distribution of manholes could be found faster and more accurately.After receiving Jiang Yiming's call, the leader of the management office immediately sent someone to handle it. After a while, he faxed the schematic diagram of the drainage pipeline to Jiang Yiming's fax machine.

Jiang Yiming brought Wu Jiang, Zhou Ting, and Shi Wei to the scene and began to inspect the surrounding manhole covers one by one.Under normal circumstances, no one will touch the manhole cover, unless the manhole cover is on the roadway and will be shaken by vehicles.Of course, it is impossible for the suspect to escape through the sewer in the driveway because that would risk being witnessed.

They each took a copy of the sewer schematic diagram and divided it into four routes, searching from the center of the site to the four directions of southeast, northwest and northwest. This division of labor could help them find suspicious manhole covers more quickly, saving a lot of time and effort.

Two hours later, Wu Jiang called Jiang Yiming and said that he had found a manhole cover that had been tampered with. He asked Jiang Yiming to go over and take a look. He sent the specific location to Jiang Yiming, who then stopped working and rushed to Wujiang.

(End of this chapter)