novice forensic medicine

Chapter 302

Zhou Ning nodded. Zhou Ning knew the names on the two autopsy reports. Both were well-known forensic doctors in Qindao, especially the forensic doctor who participated in the re-examination went to the judicial appraisal center of the provincial department. level characters.

Liu Yongxin glanced at Zhou Ning's expression and understood.

"Forensic technology is constantly developing. There are many judgment methods in the past, which are very different from the present. Everyone can sit here for the detection of the case, not for the right or wrong judgment of the autopsy report."

Xu Dayuan understood. It seems that Zhou Ning and Liu Yongxin disagreed with the judgment of the autopsy report.

"That's right. We came here to solve the case. After all, there is not much information left in this case. If the details can be re-investigated, it is natural to re-investigate. As for the technical aspects, where the previous conditions did not allow or the analysis was not in place, it is necessary to re-check. If it is unreasonable, it will be judged again.”

With Xu Dayuan's words, Zhou Ning breathed a sigh of relief, and quickly scanned the autopsy report of the third deceased. On this report, the corresponding various poison tests and various blood analyzes are very complete. According to the autopsy findings and detailed records, The corpse spots are also light, and there are multiple cut marks on the neck fracture.

Zhou Ning agreed with Bai Hua's autopsy results. The third deceased, Zhang Qiujian, died of suffocation. A piece of down was found in the bronchus. It is suspected that the item that caused Zhang Qiujian's suffocation to death was a soft knitted fabric with down filling.

Looking through the corresponding test sheets at the back, one of them surprised Zhou Ning, and the special value on it was even more puzzling.

"How did forensic doctor Bai think of testing the blood sugar of the deceased?"

Bai Hua was a little embarrassed and coughed lightly.

"At that time, I asked the investigator to call the laboratory department to propose the items to be done. I guess my accent is a bit heavy, and the other party heard it as a blood sugar test. However, the result still surprised me. Zhang Qiujian, the third deceased, had slender limbs and a belly. Outstanding, according to this state, his blood sugar will not be only 2.7, I have never figured it out."

Zhou Ning nodded slightly, indicating to Xu Dayuan that he had nothing else to ask, and then Xu Dayuan waved his hand.

"Okay, the four groups are starting to work now. If there is any discovery, we will summarize it as soon as possible. I don't want to repeat how difficult the investigation work we need to do. The only requirement is to be careful, and the meeting will end."

Everyone cheered and dispersed, only Zhou Ning and the others were left, Xiao Qu and Xia Momo came over, Xiao Qu said.

"Director Zhou, I will stay and cooperate with this case. After all, the skull of the deceased has not yet been found. Teacher Xia still needs to do final training for these newcomers. In addition, the content of the software changes also requires Teacher Xia to go back. Butt it."

Zhou Ning nodded. He knew that Xia Momo hoped that, according to the method they used to restore the facial bones of the deceased, he would make a simulation calculation model in the software, similar to an equal-scale copy.

However, it still needs to be simulated according to the shape of the remaining bones. He must discuss this with Dr. Lu.

"Also, if the software repairs this part, even if we find half of the skull, we can roughly restore the original appearance. I'll send someone to send you back."

Momo Xia shook her head.

"Bureau Xu has arranged someone. I'll go back and deal with it. You need temporary skull restoration. I can come over at any time."

Zhu Xingxing sent Xia Momo away, and they returned to the forensic room. Bai Hua had already placed three autopsy reports on the table, and various information about the deceased was posted on the whiteboard, but there was no connection between the three.

Hearing footsteps, Bai Hua turned her head and pushed her glasses.

"During Director Zhou's meeting, did you disagree with the cause of death of the first and second deceased?"

Zhou Ning smiled.

"What does Forensic Doctor Bai think?"

Bai Hua paused in embarrassment. She didn't expect Zhou Ning to throw the question back, but she did have doubts all the time, but the autopsies of the two deceased were all done by authoritative people, so it can be said that the final conclusion was made.

Therefore, the direction of the investigation is also considered in this direction. The first scene to be found is close to the water source, and the skull of the deceased is also searched around the water source. Both sides of the Baisha River and Dagu River in Hai'an City, as well as all ditches and ponds, have been searched in a blanket manner. However, it turned out to be nothing.

On the contrary, it was the third deceased she handled, and a piece of down was found in the lungs. Because of this, the deceased was almost not included in the serial murder case.

After a moment of silence, Bai Hua sighed.

"Although both deceased No. [-] and No. [-] were tested for diatoms, and diatoms were detected in the lungs, liver, kidneys, and spleen, no corresponding waters were found for comparative experiments.

When Zheng Chuguang, the No. 1993 deceased, was found, on a piece of plastic sheet, I went to the Meteorological Bureau and inquired about the weather from November 11rd to 3th, 6. During those few days, Haian City had been experiencing low temperature and heavy fog, and the air humidity reached 98%. It also rained on the 4th, and the body was soaked in puddles of plastic sheeting.

This diatom experiment is meaningless, and it is not accurate to judge the death of drowning based on the pink mushroom-like foam, no garlic smell, and edema in the lungs of No. [-], but I think the death of No. [-] It was drowning, after all, there was a lung with blunt edges.

Just like deceased No. [-], it was raining when I found deceased No. [-]. I also conducted a diatom test on him, and found diatoms in the lungs that were consistent with rainwater, but diatom tests in other organs did not find diatoms. What I said was a bit messy. "

Bai Hua was a little annoyed, but Zhou Ning nodded aside.

"I understand. After reading the three autopsy reports, it is indeed easy to think that the first and second victims were all drowned. However, after careful comparison, the number and types of diatoms found in the organs of the first deceased are different. This is not true. Difficult to overthrow.

Look here, I don’t know if you noticed, the number two deceased had a chemical composition analysis sheet at the end, I looked at the name below, I didn’t know this one, and the test was done at the provincial department, in which the drowning liquid of the deceased was analyzed, and the composition was found very funny.

Among them were sodium chloride, sodium carbonate, sodium bicarbonate, citric acid, silica, borax, and although the amounts of each substance were minute, I was still very puzzled to find these things. "

Bai Hua was startled. She had indeed seen this before. She read the test sheet at the time, but the contents were a bit puzzling. Of course, the most common thing was sodium chloride—salt.

He always thought it was the murderer who sprinkled salt on the body, similar to sprinkling salt to exorcise evil spirits, let the soul rest in peace, don't pester the murderer, it was a sign of peace of mind, but Zhou Ning's words made her pause.

"I saw this test sheet, but the content of the things on it is very small, and I don't understand what these things are combined together."

Zhou Ning waved to Xiaoqu.

"Send this to Dr. Lu, he has a Ph.D. in chemistry, I think he should be able to know what these ingredients are put together."

Xiao Qu didn't talk nonsense, and hurried to send it to Dr. Lu, and Da Zhao bumped Zhou Ning's shoulder.

"Zhou Xiaozhou, you look so determined, do you know what this is?"

Zhou Ning nodded. When he was training in the small black room, he encountered a similar case. A person drowned in the bathtub, but the body was thrown at the seaside. After testing and comparing, it was found that the two water samples were different.

The content of the test sheet was basically the same as this discovery, but there was also the discovery of aromatic phenols. Zhou Ning guessed that it was a bath ball, but this answer was wrong, and there was a smell of singed pig hair after being electrocuted.

After reading the answer, I realized that this is a kind of bath salt.

"It's a kind of bath salt, which can be used for soaking in the bath, or it can be applied to exfoliate the skin."

Xiao Qu had already hung up the phone, and looked at Zhou Ning and nodded to him.

"Dr. Lu said that this is bath salt. He has done a similar test before, and the net content standard test of various substances. He still remembers this brand, BATHCLIN from Sapporo."

"Search, did this brand enter the Huaguo market in 2000?"

Xiao Qu searched quickly, shook her head slightly and said:

"This Basquerin brand does not have an official sales store in China now. It started selling online in 2010, but these are all purchasing agents. After all, the price is indeed expensive. It is more than 100 Chinese coins for such a small bag. , too expensive!"

"Then who did the inspection?"

Xiao Qu found a sales webpage and opened it for Zhou Ning to see.

"It's their family. It's a relatively large agent. They have already negotiated a domestic agent, but the price is a little higher than the purchasing agent."

Bai Hua subconsciously glanced at the scene pictures of the second deceased, as well as the photo of Yu Guangyao himself. Among the three deceased, Yu Guangyao was the one with the best looks and height, but a man of 185 was drowned in a bath full of high-grade bath salts. In the bathtub, the judgment was shocking.

Zhou Ning also looked at Yu Guangyao's photo, and circled Yu Guangyao's death time with a whiteboard marker.

"On July 2000, 7, the body was found, headless and kneeling on the back seat of the car. This was 25 years ago, which means that the murderer was a person with quality of life. He had been to Sapporo and liked to use high-end luxury daily necessities. Most likely women.

In addition, Yu Guangyao is 185 centimeters tall and weighs 178 kilograms. The weight of an adult's head is about 4.5 to 5.5 kilograms, and the position where the deceased's head was severed was between the sixth and seventh cervical vertebrae. The remaining part weighs about 165 catties.

This weight, especially when the corpse was tied up in a kneeling posture, was difficult for women to move. At least one of them couldn’t do it. After all, there were no scratches or scratches on the body of the deceased. "

Both Bai Hua and Da Zhao came closer, and Zhu Xingxing spoke the fastest.

"Boss, do you mean that the murderer is two people, a man and a woman?"

Zhou Ning was stunned by this question.

"When did I say that the murderer was a man and a woman?"

Zhu Xingxing spread his hands and wanted to explain, but Da Zhao grabbed his collar and threw him directly behind. Bai Hua frowned slightly, not paying attention to everything in front of him.

"The location where the No. [-] deceased was found was on the edge of the embankment under the Baisha River Bridge. The slope there was more than [-] degrees, and the body was put down without scratches. If it was done by one person, there is no place to climb around. , How to come up? I also think the murderer is two people."

(End of this chapter)