On both sides of the road where Wang Zihan disappeared were poplar trees that had not yet budded.

The poplars are flanked by large vineyards, supported by cement pillars at a height of one meter and two, extending in rows.

At intervals is a mound of dirt with vines underneath.

"Every year before winter, the farmers here bury the vines in the soil."

Lao Bai was explaining to Lu Chuan why there were bags of soil in the vineyard.

"It's cold in winter here, and if the grapes are left outside, they will freeze to death in one winter."

"The soil is insulated, and the weather is getting warmer these days, and the farmers have to pull the vines out of the soil before they sprout."

Lu Chuan nodded, he really didn't know this before.

Lao Bai is called living for a long time.

"Follow the side of the road, look carefully at the footprints in the woods, and in the fields."

Liu Guodong reminded Lu Chuan and Lao Bai: "The probability of the other party making a move on this road is the largest, whether the murderer kills people at the scene or kidnaps the child to leave the murder, there are only two ways to leave."

"The first is to follow the road in the direction of Nature Tun, and the second is to turn into the vineyard and leave in the vineyard."

"The opposite direction is Wang Zihan's house, and it is unlikely that the murderer will pass by the child's house when he leaves from there."

Lu Chuan and the others nodded, which was also the focus of attention after the two of them had just started their investigation.

However, after walking more than a hundred meters, there were no major discoveries.

Recently, the weather has warmed up, the snow has melted, and the soil in the vineyards is muddy, and stepping on it is a footprint.

It can be easily detected with the naked eye alone, but so far, Lu Chuan and others have not found this in this regard.

"It's unlikely that the killer left the vineyard."

Lao Bai expressed his opinion: "The field is muddy these days, and the murderer must know that if he walks through the grape field, he will definitely leave traces."

"The other party is not that stupid."

"But ......"

Lao Bai looked up and looked ahead, there were more than a hundred meters, it was a right-angle bend, and he turned around to see the natural tun.

"When the child disappeared during the day, when he just went to school in the morning, if the murderer went in the direction of the village, it would be impossible for no one to see him."

People in the village generally get up early, and six or seven o'clock is already a good time to work.

"Not necessarily, if the other party is driving, or has some tools, no one can see the child in the car."

Lu Chuan rubbed the side of the road and carefully observed some details. Look at the book

The three walked side by side, Lu Chuan and Liu Guodong were on both sides of the road, mainly observing the side of the road.

Lao Bai is in the middle of the road, mainly observing the middle of the road.

"Let's go through it first, after the child disappeared, the police and villagers looked for the child nearby, but they definitely didn't survey the road in detail."

Liu Guodong stared at him and did not let go of any detail: "Whether the murderer kills here or not, it is the most likely place for him and the child to meet."

"Therefore, whether it is kidnapping or killing people on the spot, it is impossible for the murderer to leave no trace at all......

Well?

As he was talking, Liu Guodong's eyes froze.

"What's wrong?"

Lao Bai turned his head and looked at Liu Guodong, who suddenly stopped talking.

"Look here!"

Liu Guodong walked forward quickly, squatted on the side of the road, and pointed to the fresh dirt on the roadbed.

"The soil here is different in color than other places, and it's darker."

Lao Bai also squatted down and looked left and right: "The dirt down there has turned up."

"Bring the instrument and take a picture."

Liu Guodong learned about this road, and most farmers will drive when they pass by.

Very few people have walked by.

There was dead grass on both sides of the road, and it really looked like no one was walking.

And here, the soil under the dead grass has turned up, and it is clear that it is not naturally formed.

Lu Chuan got the ultra-wide spectrum on-site trace evidence search camera and took a picture of it.

"Something!"

On the churning soil, there is a reflector, and the instrument suggests that it is a fiber.

In addition to this, there are some tiny dandruff-like substances.

"Get it back and test it."

Lu Chuan agreed and began to take pictures.

The physical evidence found at the scene must first be photographed at the scene before it can be moved.

This is a fixed process for the collection of physical evidence.

A little dander, some fibrous matter, may seem tiny, but if it is left by the murderer, then it is likely to use it to solve the case.

The collection is continuing, and other groups are moving forward.

"The morning before yesterday, you drove to Beitun?"

Sun Jun's group has the largest workload, but it is also relatively more regular.

The water supply to each well in the vineyard is fixed.

Well No. 3 supplied water for the six nearby vineyards, and the murderer could not have dumped the body without a purpose.

First of all, he wanted to know where the No. 3 shaft was.

For the vineyard contractors who need well No. 3 for irrigation, there are two in Nantun, one in Dongtun and one in Xitun.

The other two are the Wang Zihan family and Tanaka Fa Jia.

These natural tuns are named after the direction and are all within five kilometers of the machine well.

Beitun is the natural tun that Wang Zihan has to pass through to go to school.

So, why did Zheng Jianghe, who was in Xitun, go to Beitun on the morning of the child's disappearance?

"I'm going to pull fertilizer."

"Who can prove it?"

"My brother-in-law, I just went to his house to pull fertilizer, I went at four o'clock in the morning, and I came back at seven o'clock, and his neighbors also saw me."

Sun Jun's group checked all the outsiders who had been to Beitun on the day of the crime.

Investigate one by one, and eliminate suspicions one by one.

Beitun Chen Liuzi's family.

"Hello comrade policeman, hello, come into the house and sit, enter the house!"

"Daughter-in-law! Hurry up and make tea for the police comrades!"

After visiting most of the households in Beitun, Ren Qiang and Zhang Hui finally came to Chen Liuzi's house.

Chen Liuzi is the sixth in the family, and his father named him Chen Liu.

"Don't bother, let's check with you and leave."

Zhang Hui waved his hand, with a businesslike expressionless expression.

The smile on the enthusiastic Chen Liuzi's face froze: "Ah, it's okay not to drink tea...... That poured water on the two cops!"

Chen Liuzi's daughter-in-law didn't look very old, she looked very beautiful and beautiful, not at all like the other peasant women that Ren Qiang and the others had just seen in Tunzi.

Chen Liuzi's face also looked young, not like he had been doing manual work for a long time.

The people in the tunzi said that Chen Liuzi was idle, but it was not bad.

But when Ren Qiang just entered the door, he saw that Chen Liuzi's house was not badly furnished, the house was clean and tidy, and a car worth more than 100,000 yuan was parked in the yard.

The living conditions are much better than most of the people in Tunzi.

"Chen Liu, we hope you can answer our next questions truthfully and actively cooperate."

"Don't worry, rest assured, I will cooperate, I will cooperate!"

"The morning before yesterday, between six and eight o'clock...... Where are you?"

Hearing this question, Chen Liu's eyes paused slightly, and then his face fell.

"Comrade policeman, let me tell you, I really didn't kill the boy of the Wang family!"

"They're all rumors! It's all!"