Solving the case: Combining the police dog's olfactory genes at the beginning

There was no police activity in the criminal police team all day long. It was almost five o'clock, and Wang Lei and others had already started packing their things and getting ready to get off work.

At this moment, Yang Su hurriedly walked in from outside and had just entered the office.

"I just received a call from the police. There was a murder in Longxugou. It was said that a child drowned in the ditch." Zhao Donglai spoke very quickly.

Upon hearing that a murder had occurred, Luo Fei and the others immediately stood up, quickly packed their things and went out.

At 5:30 in the afternoon, the criminal police team arrived at the scene of the murder. People from the Songxin Town Police Station had already set up a cordon. The team was led by Zhou Weimin, Zhang Haiyang, Liu Haiquan, Zhao Le, and Wu Wei.

Luo Fei did not come forward to say hello. After all, the scene of the murder was not suitable. He just nodded to a few people and said hello.

"The deceased's name is Zeng Xiaoguang, 9 years old, a second-grade student at Chaoyang Primary School. Last Saturday, his parents went to the police station to report missing, saying that the child disappeared after attending a tutoring class. We have been investigating during this period. We thought The child was abducted and was unexpectedly killed." Zhou Weimin told Zhao Donglai what he knew.

Luo Fei noticed that the child drowned in a small pond. It was thirty square meters in size. It was not big but looked a bit deep. It should have been formed by digging sand and gravel in the past. The child had been fished out of the pond and placed in the pond. on the grass by the pond.

Luo Fei followed Zhao Donglai to the body. The child, who was nine or ten years old, was naked, his body was completely swollen, and exuded a stench. He should have been dead for many days.

"Alas, such a young child died like this." Zhou Weimin next to him said sadly as he looked at the corpse.

"Zhou Suo, who was the first to discover the body?" Zhao Dong looked at the body for a while, then stood up and asked Zhou Weimin.

When Zhou Weimin heard this, he looked outside the cordon not far away and shouted: "Gong Dahe, come here. I have something to ask you?"

Then a tall, thin man with dark skin who had been standing outside the cordon came over.

"He was the one who discovered it first and called the police." Zhou Weimin pointed at Gong Dahe and said to Zhao Donglai.

Zhao Dong came to look at Gong Dahe, examined it carefully, and then asked: "How did you find the body?"

Gong Dahe looked a little nervous and said hesitantly: "I was originally planning to go to the back mountain to collect mulberry leaves to feed the pigs. As soon as I got here, I saw a child soaking in the pond, so I hurried down to pick him up. The child was fished out and found dead, so I called 110."

When Luo Fei just came over, he did notice a backpack outside the cordon. In addition, there was no black air on the man's head. Luo Fei was basically certain that Gong Dahe had nothing to do with the case.

Zhao Donglai was still here and continued to question Gong Dahe, but Luo Fei came to the other side of the pond. Here, all the boy's clothes and pants were neatly placed on the grass beside the pond. Wu Xiaoyue and another member of the technical team were investigating. .

Judging from the current situation, it seems obvious that the little boy came to the pond to swim and accidentally drowned.

But is this really the case?

Luo Fei looked at the pond, squatted down, and put his hand into the pond. The water was not cold, but rather warm. Although it was already December, the temperature in Ningjiang County was still very high. Children should come and swim a little. Not surprisingly.

However, it is a bit strange for a child to come to swim so far away. Moreover, the grass next to the pond has basically not been stepped on, which shows that not many people usually come here to swim, so why does this little boy come here? What about swimming?

Not long after, Yang Mei and her technical team completed the inspection of the scene and autopsy.

"There was mushroom-shaped foam on the mouth and nose of the deceased. It was initially determined that he died of drowning. However, the forensic doctor still needed to perform further surgery to check whether the deceased's lungs were swollen and there was water accumulation; and based on the body spots on the deceased's body and the swelling of the body, the time of death of the deceased was About 6 days, which is basically the same time as the deceased disappeared.”

"The reason why no one found the deceased's body for so long is because after drowning, the deceased inhaled a large amount of water, and his body was heavier than water, so the deceased's body sank to the bottom of the pond. After four or five days, the deceased's body began to The decomposition and swelling produce gas. At this time, the weight of the body is lighter than the water, so the body will float. This is why the body of the deceased was only discovered today."

"In addition, we found twelve sets of shoe prints at the scene, all of which were relatively new. It rained on Monday, so these shoe prints should have been left after Monday. Based on the analysis of the body spots and body swelling, "The time of death of the deceased was probably last Saturday, so these shoe prints should not be left by the suspect."

After Yang Mei finished speaking, Luo Fei also nodded secretly. Although this was different from his judgment, it was not a big problem. After studying for so long, the learning results of Traceology were finally verified for the first time, proving that his learning was effective. Yes, this made Luo Fei very happy.

However, Luo Fei has only mastered the theoretical knowledge in the textbook, and still lacks practical experience. He has to slowly accumulate practical experience. Just following the theoretical knowledge in the textbook is definitely not enough.

"According to this, this child did drown to death?" Zhao Donglai frowned and looked at the crowd and asked, but there was doubt in his heart.

Seeing that no one spoke, Zhao Donglai added, "But don't you think it's strange for a child to swim so far away alone?"

"It's indeed strange, and I just tested it. Although this pond may not look small, it is very deep, a full two meters deep. I think ordinary children should not dare to swim in such a deep pond, let alone the deceased. Only nine years old." Yang Su also asked suspiciously.

"Could it be that the child thought that the pool was not deep, so he wanted to go swimming, but when he went down, he found that the pool was very deep, and he wanted to swim up but couldn't." Wang Dong, the leader of the third group, asked doubt.

"It's possible, but I don't think this case is that simple."

While everyone was discussing, a middle-aged man and woman hurried over outside the cordon.

The man was wearing a Polo shirt, black trousers, black leather shoes, and his neatly combed hair, looking like a successful person; the woman had big brown waves permed, a long plaid dress, a dignified and classic appearance, and a slight smile. She has a fat figure and looks like a mature woman all over her body, but the only drawback is that the woman has a haggard complexion and heavy dark circles under her eyes.

"Are the deceased's parents here?" Zhou Weimin whispered.

Soon the man and woman came to the pond and immediately noticed the white quilt beside the pond.

In an instant, the woman staggered and almost fainted. Fortunately, the man next to her supported her arm. Yang Mei also immediately went over to support the woman's other arm.

After helping the woman to the body, the man next to her tremblingly lifted off the white quilt.

The moment she saw the body, the woman fainted. Although the body was swollen, the woman was sure that it was her child.

The middle-aged man next to him was staring at the corpse, his face pale and grief-stricken.

The white-haired man gave the black-haired man a gift. This scene made everyone present, whether from the criminal police team or the police station, feel a little heavy.

But at this moment, Luo Fei frowned and stared at the middle-aged man.

Just when the middle-aged man came over, Luo Fei immediately noticed the thick black air on the middle-aged man's head, and the villain with a ferocious face in the center of the black air.

Luo Fei knew very well what this meant, that is, the middle-aged man had committed an unforgivable crime.

Brothers, the new book list has reached seventy-four, keep on going.