Police cars drove into the community and quickly put up police tape around Building 4.

After making a few phone calls, Wei Zhenguo and Huang Qiangming handed over the command of the scene to the on-site personnel, arranging for Ding Lan and others to take the car back to the police station.

Soon, the forensic investigation team from Changyang City arrived, along with several technicians.

"How's the situation down there?" Cao Zhouquan, the captain of the forensic team, who came with the team, looked at Wei Zhenguo and Jiang Yuan, while dressing and inspecting items.

"We have a detective who entered the dungeon, but no one else has gone beyond the last iron door. I have put up warning tape. In addition, fingerprints were taken at the positions of several door handles, and a few cotton swabs were wiped." Jiang Yuan answered the question simply.

Captain Cao Zhouquan nodded and said, "Not bad. It's already good that the forensic team from the county can retreat when they encounter difficulties."

Seeing that Jiang Yuan was sensible, Cao Zhouquan politely said, "If you think of anything else, let me know."

Jiang Yuan watched Ding Lan and others get on the police car through the window and said, "You can dig up the area far from the computer desk and see if there is anything buried there."

Captain Cao Zhouquan frowned and asked, "What's buried there?"

"I don't know, maybe a body." Jiang Yuan didn't beat around the bush and said directly, "The space below is very compact, and the empty space in that area is more obvious. The person who was imprisoned probably knew there was something inside. It's just a guess, but you can ask them."

"I got it." Cao Zhouquan sighed, "We will focus on checking it later. If you think of anything else, let us know."

"Um..." Jiang Yuan stopped Cao Zhouquan.

"Yes?"

"The basement doesn't look big, but the amount of work is not small. Even if Tan Yong is strong, it's too difficult for one person to dig. In addition, I see that the chiseling marks inside are relatively messy and shallow, and they don't look like they were made by a middle-aged man..."

This time, Cao Zhouquan interrupted Jiang Yuan and asked, "Do you suspect that Tan Yong let the imprisoned woman chisel the basement?"

"Yes."

"Well...not surprising. We will collect evidence later." Cao Zhouquan stopped and asked, "Anything else?"

"We don't have much evidence in our hands, it's up to you next." Jiang Yuan actually wanted to follow the investigation and had confidence in doing better than ordinary technicians, but considering the current busy scene, he wisely didn't speak up.

At this moment, Cao Zhouquan also realized that Jiang Yuan was a bit extraordinary. In just a few words, Jiang Yuan had figured out the main evidence of the case just by observing. This level of ability couldn't be expressed by just retreating when encountering difficulties.

Cao Zhouquan asked himself, even a few years ago, or even now, he might not have the patience of Jiang Yuan. Considering the credit and other factors, it's even harder to say what decision to make.

With such ability and knowing to wait for the well-equipped forensic team to arrive before taking action, Cao Zhouquan politely thanked Jiang Yuan before calling his apprentice and heading down the well.

Wei Zhenguo and others came over after going down, surprised and asked, "Is there still a body down there?""It's very possible. But we won't know until we dig it out," Jiang Yuan realized he spoke too late and asked, "Should we inform Huang's team again?"

"That's all we can do. If there's a homicide, we'll have to inform them. We can't handle it ourselves," Wei Zhenguo shook his head. The police department didn't pursue the number of cases they solved. In theory, they didn't want big cases because they always had too many cases to handle, and the pressure and cost of solving big cases were far greater than the rewards they might receive.

Cao Zhouquan, the captain of the forensic team, had been in the basement for a long time. During this time, technicians were busy going up and down.

When Cao Zhouquan came back up, his traditionally handsome middle-aged face was covered by a gas mask.

"We found a body, and based on preliminary judgment, it's a young woman... blunt force trauma to the back of the head, it's undoubtedly a homicide..." The captain gave a brief explanation, which was a feedback to Jiang Yuan's self-control.

Wei Zhenguo asked, "Did you find any traces of Tan Yong?"

"Fingerprints, footprints, and semen stains, a lot of them," the captain gave a definite answer.

Wei Zhenguo and Jiang Yuan looked at each other and finally relaxed.

Although Tan Yong was a pervert, he was not perverted enough to not have sex, let alone wear protective clothing while having sex. He could be considered a bright spot in his dark life.

A system prompt slowly appeared in Jiang Yuan's mind:

Mission completed: Full area match

Mission content: Wei Zhenguo believes that the clues to the disappearance of Ding Lan in case 326 may exist in the fingerprints on the bicycle. Please match the fingerprints collected on the bicycle and try to solve the case.

Mission reward: Forensic anthropology (LV3)

Jiang Yuan calmly accepted it.

Forensic anthropology was a branch of forensic medicine, which was much more difficult than forensic pathology.

If classified according to foreign countries, such as Britain, forensic anthropology was classified as a science, not medicine. Therefore, students who studied forensic anthropology in Britain did not have a medical qualification certificate.

To introduce the different branches of forensic medicine in an easy-to-understand way, the most common and in-demand one was forensic pathology, which dealt with the cause of death, i.e., "how did this person die."

Secondly, the more commonly used forensic clinical medicine dealt with injuries to living people, i.e., "how did this person get injured."

Thirdly, the occasionally used forensic material evidence dealt with issues related to human tissue and secretions, i.e., "why is this piece of shit here."

Forensic anthropology was probably the least desirable knowledge for forensic scientists, as it dealt with the problem of "what is this?" Starting from the most basic questions such as whether it was a human or a monkey, whether it was a man or a woman, whether it was an old or young person, all the way to "who is this."

Jiang Yuan's skills in forensic anthropology were nothing to brag about. Most forensic graduates were like this, and most people learned on the job.

Jiang Yuan looked at his newly acquired skill and tentatively asked Cao Zhouquan, "Where will you take the body for autopsy today? Can I participate?"

"I'll ask for you, but it's probably not possible," Cao Zhouquan told the truth. "For a single homicide, an autopsy in the district would suffice, but this case will have a significant impact, and the forensic scientists from both the city and the district will participate. I'll ask for you."

According to the police jurisdiction regulations in Shannan Province, where the crime occurred, the case belonged to that jurisdiction.So, when a body is found in Changyang City, the case will be filed in a certain district of Changyang City. Usually, the city bureau does not directly file the case because it is connected to the city prosecutor's office and the city intermediate court. If the latter judges the case, the second trial will go to the provincial high court, which is very troublesome and unnecessary, and will be scolded to death.

However, the three old forensic doctors in Changyang City Bureau have always supported wherever there is a homicide case. They will also personally handle cases involving multiple deaths and significant impact.

Generally speaking, there is a lot of cooperation within the criminal investigation department, even if it is in different cities, the relationship can be maintained well. The so-called criminal police all over the world are one family, and everyone has to catch people and handle cases in different places. There are many times when they cooperate with each other.

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In terms of interpersonal communication, most criminal police officers are graduates of police academies, and they mostly work in their own provinces. Each province's police academy is actually only one or two, such as Shannan Province, which is only Shannan Police Academy. In the end, they are all classmates. Everyone works on a case together, eats barbecue together, drinks and sings "Golden Shield Blood Forge" together, and cries a lot.

Wei Zhenguo also contacted the local criminal investigation detachment with the consent of the captain Huang Qiangming. After all the handover was completed, he breathed a sigh of relief.

"It's considered explained." Wei Zhenguo sat back in the car, feeling completely drained.

Jiang Yuan could only partially understand and asked along with his words, "Has this case been suppressed for a long time?"

"Well...this case was just an ordinary one back then." Wei Zhenguo looked out the window and said slowly, "Including me, I thought of various possibilities, but I really didn't expect to encounter such a perverted one. A demon in the world."

"At least it's solved now."

"Yeah."

"That's a little easier. At least we solved the case today." Jiang Yuan tried to boost Wei Zhenguo's mood.

"Yeah." Wei Zhenguo smiled very ugly, "My wife disappeared back then too."