Forensics

In the morning, beside the lover tree.

Shen Junci knelt down again to examine carefully: "Not a single tooth is left, and the treatment is very clean and professional. This is actually a bit difficult. Generally speaking, only professionals with certain forensic knowledge Only then will you know how important teeth are to a corpse."

In forensic medicine, forensic dentistry is specialized.This discipline is to use people's teeth to identify identities, judge race, gender, age, and eating habits.

And now, the head has had its teeth pulled out.

Qi Yi'an on the side frowned and asked, "That means the person handling the corpse has some forensic knowledge? Teacher, can you confirm how the injury on the face was caused?"

Shen Jun said: "Wang Shui, it should be only a small amount, if there is a large amount, even the bones will be completely melted."

Compared with ordinary cases, this corpse was handled too professionally.

It seems that the people behind it have long thought about what kind of investigation the police might conduct if one day they find the body.

Hearing what Shen Junci said, Gu Yanchen became more and more sure that it might have been written by the scavenger.

Without a complete body and no fatal wounds, it is difficult to confirm the method of death and the murder weapon.

The chain of evidence is incomplete, which is a major disadvantage to subsequent investigations and legal trials.

Shen Jun said: "We will conduct an autopsy later to see if we can determine the cause of death and find out the identity of the deceased."

Bai Meng asked from the side: "It's all done like this, can we still find clues?"

Shen Jun said: "This corpse has been over-processed, which itself is the biggest flaw."

Qi Yi'an said: "I understand a little bit, many acts of unrighteousness will lead to self-death, every additional step of disposing of the corpse, we can see more traces."

Shen Junci nodded.

After the photo survey was completed, Qi Yi'an brought the body bag and put the bloody corpse in it.

Gu Yanchen helped them transport the corpse to the corpse truck, then turned to the others and said, "Conduct a spiral search at the site of the abandoned corpse to see if there are any clues or traces."

Shen Junci went back to the Municipal Bureau first, and transported the body to the Forensic Medicine Building.

He changed into the forensic medical suit, put on a mask and gloves, and entered the dissection room after being sprayed and disinfected.

The huge exhaust fan under the dissecting table hummed, but otherwise, the dissecting room was very quiet.

After taking pictures, Qi Yian put them aside, and began to observe and measure carefully.

Size, hair length, signature features...

Although the face has been damaged, the neck of the female corpse remains intact, and the incision below the chest is very smooth.

Shen Junci pointed to the damaged marks on the neck of the corpse and said, "Look at these scars, what are their characteristics?"

There are some burn marks on the corpse, which are not regular at first glance, but they are meaningless when you look closely.

Some slightly deeper marks are round spots, four or five on the left and right sides of the neck, as if they were formed after a stirring rod was dipped in chemical reagents.There are also some traces, which are straight lines drawn along one direction.

The people who handled the corpse were very careful not to miss any wounds and marks, but this way of handling seemed to show them a way.

Qi Yi'an took a look: "This position...maybe there is subcutaneous bleeding, is this to cover up the choke marks?!"

He made a gesture, and after he stretched out his hand to pinch his neck, his fingers landed on these positions.

This principle is like someone left footprints on a piece of white snow, and then someone printed other shapes on it in order to destroy these footprints, but it happened to reveal that someone walked here.

Shen Junci nodded his head: "There are four to five marks on the left and right sides of the neck. These are scratch marks from both hands. Although the surface is damaged, the deep structure cannot be completely destroyed. In addition, the dotted spots on the conjunctiva and oral mucosa Bleeding, tongue bite, most likely strangulation."

"Moreover, from the location of the choke mark and the severity of the wound, we can infer the murderer's approximate palm, finger length, and strength. Preliminary judgment shows that the murderer is very likely to be male."

Then he opened his mouth and observed the tongue: "The upper right corner of the thyroid cartilage is fractured, and the greater horn of the hyoid bone is fractured. There is bleeding in the loose tissue under the tongue."

After Qi Yi'an recorded these, Shen Junci said again: "The degree of decay of the corpse does not match the time of death. I have another guess, this corpse may have been buried once."

Qi Yidao: "But the body isn't stained with much dirt."

Shen Junci explained: "It was buried in a bag and was dug out later."

The airtight plastic bag will keep the corpse in an oxygen-free environment, and the degree of decay is much slower than when exposed to air.

Next, Shen Junci began to hair the head, the scraper made a slight sound, and soon, the female corpse's hair was completely removed.

He stabbed the knife behind the ear of the deceased, skillfully cutting it open.

After the scalp was opened, the woman's skull was exposed.

Shen Junci took the electric craniotomy saw from Qi Yi'an and carefully removed the cranium.

"There was no obvious damage to the brain tissue. Congestion, edema, and spotting bleeding were seen in the meninges and brain parenchyma, and a small amount of bleeding in the petrous part of the temporal bone."

These are also characteristics of suffocation.

Shen Junci extracted the aqueous humor from the intact eye, pumped a small amount of effort, and asked Qi Yi'an to do further testing in the laboratory.

After everything was processed, Forensic Doctor Shen made a bone scan of the head and input it into the computer for facial reconstruction.

The dissection of the head took about half an hour, and the bone scan reconstruction took about an hour.

When they finished their work, Gu Yanchen also dealt with the scene and returned to the Municipal Bureau.

After Gu Dui archived the physical evidence and handed it over to the laboratory, he immediately came to the forensic anatomy room next to him to check the situation.

Shen Junci asked: "Are there any new clues at the scene?"

Gu Yanchen said: "A little blood was found on the physical evidence, but it has been polluted by rainwater, and it has just been sent to the laboratory. I don't know if it can detect anything."

Shen Junci was still a little worried about him: "You have been so busy with the case as soon as you came back, are you okay?"

"That's natural, I'll check it later." Seeing that the autopsy had been completed, Gu Yanchen asked, "Have you found the cause of death?"

Shen Junci raised his head, took off his mask, and looked at him under the shadowless lamp: "Strangle."

Looking at the half corpse, a picture appeared in Qi Yi'an's mind. The young girl was strangled by her neck with both hands. She opened her eyes wide in disbelief, struggled non-stop, and whimpered in her throat. sound.The opponent continued to exert force until she lost her breath.

Thinking of this cruel scene, he couldn't help shivering.

Gu Yanchen asked again: "Can you deduce the time of death?"

"More than two days. He died around midnight the day before yesterday. Then the body was processed, buried in a bag, and dug up last night. In addition, I scanned the head and will restore the appearance of the deceased later. "

Shen Junci had used this technique in Xu Yapei's case before.

Now, the computer on the side is calculating, layer by layer, adding flesh and blood to those bones, and then covering them with a layer of skin.

The shape of the brow bone, eye sockets, bridge of the nose, lips, jaw...

The image of the girl on the computer gradually took shape. While observing the bloody corpse, Shen Junci tirelessly adjusted it. Finally, a photo of a woman was finally completed.

After everything was done, Qi Yi'an went to put the corpse for storage.

Then several people went to the criminal investigation building for a meeting.

The search at the scene did not find much information, and everyone put their hopes on the autopsy results.

And Shen Junci did not disappoint everyone.

He enlarged the restored facial image and pasted it on a whiteboard.

Everyone looked at the restored photos, and it could be seen that the deceased was a handsome young girl.

Shen Junci told everyone the information he had obtained: "The deceased is estimated to be around 20 years old, female. According to the prediction of the skull and neck bones, the height of the woman is about 1 meters, the body is thin, and the weight is about 65 catties. The time of death is the day before yesterday. At night, the neck of the corpse was strangled. Judging from the congestion of the hyoid bone and petrous part of the temporal bone, it should be strangled."

"The teeth of the corpse were completely pulled out, the face was injured with aqua regia, and all traces were burned with aqua regia. The corpse was divided with a bone saw."

"The body was buried, and then it was dug up and thrown away."

"Other conclusions can be drawn based on the body parts. The girl has mild myopia and well-maintained hair. Judging from the remaining skin on her forehead and neck, her complexion is fair and she doesn't often see the sun. She doesn't have much muscle. , does not often play sports. Although her fingerprints are damaged, her hands are slender, her nails are intact, there are traces of watercolor paint in the crevices of the nails, and there are calluses on the place where the pen is held."

Then he said: "Based on the above situation, I suggest to check from the college students who don't live on campus, especially the students related to art."

Gu Yanchen began to assign tasks, and he said to Bai Meng: "Send the restored photos to each branch to see if there is any missing registration."

"Lu Ying, take Yu Shen to retrieve the monitoring data from Skynet, and compare the wheel marks on the scene with the monitoring of leaving the city last night to see if you can find the vehicle that abandoned the corpse."

The Penang City Bureau took a short break in the afternoon, and the whole team of the special punishment team began to be busy. In order to speed up the efficiency, they also transferred a few police officers from the third team.

Lu Ying began to compare the passing vehicles in the vicinity last night. This is a big project. Based on the wheel print of only one tire, it can only be confirmed that it is a Nissan car. The initial screening has screened out hundreds of vehicles, and the information may not be accurate.

Yu Shen was conducting road inspections, and he found that although it was raining heavily last night, there was a lot of traffic at major intersections in the city.

Yu Shen reported this discovery to Gu Yanchen.

Gu Yanchen said: "You make statistics, and then observe these cars in the city to see where they mainly come from."

It was not normal for so many cars to appear suddenly on a rainy night last night. Perhaps those people had received some news and were looking for the lost bodies.

Mapping the car's path is not a small project, but Gu Yanchen thinks it's worth pursuing this clue.

Bai Meng communicated with various sub-bureaus there, and after a while, she said, "Captain Gu! I found it, the photo given by Forensic Doctor Shen is amazing!"

Gu Yanchen leaned over to take a look.

Baimeng has already corresponded to a missing record.

The police record is from yesterday, and the name of the missing girl is Xia En.

Bai Meng opened the file, which contained a photo of her ID card and a few photos provided by her family members, and then she looked at the restored picture: "It is very similar to the photo given by Doctor Shen, and the age, height and shape can also be matched."

The girl in the photo is young and beautiful, with a good appearance.

Xia En is 20 years old this year. He is a university student at the University of Penang. He majored in advertising. He disliked the noisy postgraduate dormitory. After applying with the teacher, he rented a house to live off-campus.

The day before yesterday was the day to hand in a paper, only she didn't hand it in, her classmate sent her a message but didn't reply, she called her and her phone was shut down, this kind of thing never happened.

She lived off-campus, and several friends couldn't contact her. They went to open the room and found that she was not at home. When their parents heard the news, they became anxious and rushed over.

So the classmates and teachers went to the nearby branch office to report her missing.

It's a pity that the DNA and blood type tests have not yet come out, and they cannot be confirmed through information.

Gu Yanchen said: "Contact the family as soon as possible, and call her friends over to find out about the situation."

Finally found the suspected victim, Bai Meng and Lu Ying got busy and contacted the sub-bureau for verification. At three o'clock in the afternoon, it was finally confirmed that the victim was Xia En.

But now, a new problem has emerged. An ordinary school girl with simple social relationships, why would she be dismembered and put part of her body under the lover tree?

After receiving the notice, Xia En's homeroom teacher and her girlfriends and friends went to the city bureau.

Gu Yanchen received them in person, and Shen Junci also came over to listen in after finishing his work on the forensic doctor's affairs.

Gu Yanchen chatted with the teacher to confirm that she didn't know much information, while Xia En's classmate lowered his head, hesitating to speak.

Gu Yanchen left the girl alone and called her to a conference room.

Bai Meng and Shen Junci also entered the room.

The girl took out her ID card from her schoolbag and said, "My name is Deng Anlu, I am Xia En's classmate and her former roommate..."

Deng Anlu has long hair in a shawl, looks very small, and is also very good-looking. The girl has a student spirit and looks pure and pleasant.At this time, her face turned pale, and tears rolled in her eyes: "Did something really happen to Xia En?"

Gu Yanchen looked at Deng Anlu and found a layer of goose bumps on her forearm.

He had an intuition that Deng Anlu should be an insider, and asked her, "What else do you know?"

Deng Anlu was still in shock, her eyes filled with water vapor, and she looked like she was about to cry at any moment: "I lived with her for less than three months, and I already felt that something might happen. I moved out later, I didn't expect... did not expect……"

Shen Junci frowned slightly after hearing what she said.

Gu Yanchen asked Bai Meng to pour some water for Deng Anlu, and the girl took two sips before her mood stabilized: "There may be problems with the place we lived before, and there are always all kinds of terrible things and strange people around there. "

"I wanted to come here today, and I even brought some things here." The girl said as she rummaged through her schoolbag, and then took out a folded note, "This is the door under the door before I moved out." found in the cracks."

Gu Yanchen was afraid of contaminating the evidence, so he put on his gloves and opened the note, which looked like a few words written with his left hand: "Get out of here!"