"Ethyl acetate." The exhausted Xiao Shi slumped on the boss's chair, crossed his legs on the edge of the table, and pointed a pen on the whiteboard, "It's also called ethyl acetate, C4H8O2 , is a common industrial solvent, with two characteristics of solubility and quick drying, soluble in water, and also miscible with organic solvents such as ethanol, petroleum ether, and methylene chloride, and is widely used in flavors and fragrances , organic chemical and medical fields, and can also be used as a cleaning agent in the textile industry. I checked and found that many cosmetics on the market have added this solvent, because it is not harmful to pregnant women, so the sales are good, such as Chanel, Estee Lauder, Sephora These big-name cosmetics all have additives, and the most common one is... armor base oil? What the hell is this?"

At this moment, Jiang Juan has brought back all the valuable evidence from the scene and placed them on the big desk of the forensic department. Seeing his precious children being disturbed by his precious ex-wife, he dared to be angry and dare not speak out, so he could only follow that person's buttocks all the way to clean up.

It just so happened that the short-sighted Chi Qing bumped into the door by mistake, firmly holding the book in his arms a bit higher than his head, and Xiao Shi, whose vision was almost zero, bumped into someone and turned his back on his back. He used the excuse of letting others vent his anger, and after one operation, the person who moved the books with a bruised nose and a swollen face became an unlucky guy surnamed Chi, and he was free to run around to court his ex-wife.

"Daughter-in-law, what are you doing here? Did you find anything at the scene?"

Jiang Juan ignored him. After measuring the size, he put the notebook on the table that was restored according to the on-site specifications, opened the lid and sat in front of the computer to observe the surrounding situation.

"Where did you just say that? Go on."

"Oh, that means ethyl acetate is often added as a solvent in cosmetics. Although it is normal for the deceased to have delicate makeup on, it is normal for the deceased to have cosmetic residue on his hands, but the amount of ethyl acetate is not in line with common sense. It proves that the last thing she did before she died was to smear her hands all over what she just said... that's right! Armor top coat!" As he spoke, he turned around and asked Chi Qing, who was aggrieved, "What kind of oil is this, lubricated like Vaseline?"

Just as Chi Qing wanted to answer, he suddenly felt something was wrong, and changed his words abruptly: "...Master, why do you know that Vaseline is lubricated?"

"What impression do you have of me, boy? Men will have dry skin in autumn and winter, and you Jiang team will give me..." At this point, Xiao Shi slapped his head and finally understood the meaning of Jiang Xun's move, "It turns out What he means is that it is suitable for use on the bed... Ex-wife, why don't we go back and try it? Try... let's!"

Jiang Juan casually picked up the thickest copy of "Forensic Pathology" from the ground and threw it at his face, hitting the red heart.

After a while, Xiao Shi used a tissue to block the hot blood flowing out of his nostrils, and said in a strange voice, "What? Nail polish? Isn't it normal for this thing to appear next to a woman? Strange, it's not called a good name. , what kind of armor is not fancy, I thought it was the same as hand cream."

At this time, Bai Jiaojiao obtained a half-bottle of transparent topping oil for friendly support from Xiao Miao in the logistics department and sent it to the forensic department. Use the 50 yuan to make do with it and try it." She still reminded her carefully: "Use less, if there is too much, Meow Meow will feel distressed."

Jiang Juan didn't know whether to laugh or cry, and said to Shouqi Baochi: "Please send the deceased's nail art sample to the laboratory for testing, and see if the composition of the bottle of nail polish found at the scene is the same."

Both of them happily escaped from Xiao Shi's clutches, but it was Xiao Shi who fell into Jiang Juan's hands and started the tragic retribution.

When Di Zhen entered the door, he saw him screaming and holding up his hands, saying that he would not cooperate with Jiang Juan. After struggling for a while, he burst into tears. The acting was so realistic that Di Zhen almost cried, "Oh, brother Jiang, Kill pig dishes tonight, bring me a pot of sauerkraut and stewed white meat, add more spiciness!"

Xiao Shi stared straight at him, "What do you know! He is trying to tarnish my reputation, ruin my reputation, and it must be him from now on! This man has a lot of eyes!"

Di Zhen didn't think it was a big deal when he watched the excitement, "Hey, isn't that a good thing?"

Xiao Shi thought about it for a while, so he obediently extended his hand to Jiang Juan.

The two of them stared intently at Jiang Juan as he applied the bottle of nail polish to the pulp of Xiao Shi's left index finger, moved it down a few millimeters, and applied a moderate layer on the second and third joints respectively. , gently blowing air towards the wet liquid.

Xiao Shi's mouth was dry all of a sudden, if it wasn't for preventing Di Zhen from shining brightly, he might have been able to push him down and eat him alive on the spot.

Di Zhen saw that the two of them were sitting on the wall, talking leisurely and not in a hurry, and anxiously went up to hold Jiang Juan's arm, "Vice-captain, my good vice-captain, can you be so busy?" Take a little time to watch this horrible murder with wide-reaching influence? If you are passive and sabotage, then we little brothers will sit in a row at the entrance of the city bureau tomorrow and knock on stainless steel bowls I beg you to take pity on these errand-runners under your command, woo woo woo..."

Seeing that he was so pitiful, Jiang Juan couldn't pour cold water on him, so he had no choice but to compromise: "Okay, Xiao Shi, what's the result of the autopsy?"

"There was a mechanical injury at the back of the neck of the deceased. The incision was smooth, with smooth walls, flat bottom, and no inter-tissue bridge. From the shape of the section and the depth of the wound, it was speculated that the murder weapon was a sharp knife with a width of two to three millimeters. Due to repeated heavy blows, the connection between the fourth and fifth cervical vertebrae was broken, the cervical spinal cord was damaged by external force, the surrounding muscle groups, spinal nerves, and cervical sympathetic nerves were damaged, and the carotid artery ruptured. The amount of blood loss was astonishing. However, judging from the critical illness notice issued by the two hospitals during the operation and the postoperative medical certificate, the deceased was temporarily out of danger after more than ten hours of rescue due to the timely delivery to the hospital. , the most difficult problem at that time was that damage to the cervical spinal cord and nerves might lead to limb dysfunction and high paraplegia, so this wound was not her fatal injury."

"Wait, multiple blows?" Di Zhen touched his head, "Isn't there just a wound on the neck of the deceased?"

"Maybe the murderer is a butcher with good skills, or some other profession that is good at using knives? Judging from the degree of vertebral damage, the bone cross section is stepped, with unevenness caused by multiple slashes. It is very likely that he chopped These knives happened to be in the same place."

Jiang Juan asked, "How deep is the wound?"

"12 millimeters, about this long." Xiao Shi compared it with his hands.

As soon as he finished speaking, the office door was pushed open. Song Yuzhi yawned and entered the door. Seeing his gesture, he regained his energy, "Why is it so long? Yours? Tsk..."

Feeling his scorching gaze on between his legs, Xiao Shi yelled: "What a mess, don't interrupt the children when the adults are talking!"

Song Yuzhi shrugged, and pulled out a person from behind.If it weren't for the similar height of the two, he wouldn't be able to stop this 1.9-meter-tall man from going straight, "I just met an acquaintance before I came here, so I'll bring him to the forensic department to identify the door. Why are you so cold and not warmly welcome?" one time?"

Xiao Shi's smile suddenly froze on his face. The moment he saw Lian Xiao, his good mood disappeared, and he was struck by a thunderbolt. All he could think about was: Why is this person here?Why is he haunted?Why do you love to pester my wife?What's the matter if there are no good men in the world? Why do you have to involve a third party in this old-fashioned drama?Is it because he didn't read the old almanac before going out today!

Jiang Juan didn't respond, and asked Xiao Shi to continue talking after calling the two of them to sit down.

He took a deep breath and adjusted his mood, but he still couldn't hide his disappointment, and the looming dog tail drooped listlessly behind him.

"Other than that, the deceased had no other trauma, and no signs of poisoning were found after examination. In the closed environment of the ICU, there are only a few possible ways of death. The deceased did not have any violent activities such as struggling and resisting before death. There is no typical suffocation phenomenon on the surface and internal organs, and there are no other special morphological changes. I speculate that the death is caused by asphyxiation caused by the lack of oxygen in the local environment. This kind of suffocation generally occurs relatively quickly, so there is no typical suffocation phenomenon. I The deceased's blood samples were extracted, and the technicians were also asked to test the air samples at the scene of the deceased's death, that is, the ICU ward of No. 1 Civilian Hospital. It was the oxygen tube that was pulled out that led to death."

Di Zhen took a deep breath, covered his mouth and said, "The adopted son Xu Zimu was the only one admitted to the intensive care unit by the hospital today. Could it be that he chopped up his adoptive mother and then strangled her? What a hatred... "

Jiang Juan sat down and looked around the crowd, "Who unplugged the pipe can be found out just by retrieving the surveillance video and reversing the timeline, but it's really wronging him to say that he hacked the dead. Neither his fingerprints were detected on the murder weapon, nor any eyewitness testimony and strong enough evidence to prove that he seriously injured the deceased with his own hands, so even if it goes to court, it cannot be used as a basis for convicting him."

"But... But when the crime happened, didn't you see him running out of the scene covered in blood? I heard from Brother Jiang that Xu Zimu was one step ahead of him and was the first person to discover the case. Of course he will be left behind at the scene. It is normal for him to bear the brunt of the suspicion. As an ordinary person who has not received first aid training, he did not call for help immediately when he found the deceased lying in a pool of blood, but chose to step forward to check the injury of the deceased. It is not in line with the normal reaction. Is it reasonable to say that the blood was splashed on his body when he committed the crime?" Di Zhen licked his dry and chapped lips.

Song Yuzhi said: "The trace inspection report pointed out that there were no traces of fighting at the scene, which proved that the acquaintance committed the crime without any precautions. At the same time, the scene and the whole house showed no signs of external intrusion, indicating that the murderer had already been in the house before the incident. It’s here. We investigated everyone’s alibi. Ye Mingxuan and Chen He were with you and brother Zheng at the time, so they didn’t have time to commit the crime. Other bodyguards, babysitters, and even gardeners can prove it through other people’s testimony and surveillance Not at the scene, in the huge house, only Xu Zimu who surrendered himself has no alibi, in this case, it is hard to think that the murderer is someone else."

"You ignored another person who didn't have an alibi." Jiang Juan asserted, then raised his eyes to look at the two frowning, "It's the deceased Mu Xueyin herself."

The author has something to say:

Some theories in this chapter come from "Forensic Field Science" and "Forensic Pathology".

Ah Juan: How deep is the wound?

Xiao Shi: 12 mm, about this long.

Di Zhen: ...Brother Jiang asked you how deep, why did you answer so long? OMG!What do I know!I was unclean when I was young! ! ! !

Song Yuzhi: What 12mm?your?

Lian Xiao: Pfft...

[Rival No. 1 is not very lethal, but extremely insulting]

[Who else remembers that this is a set where the case is discussed in a serious manner]

Happy Valentine's Day to everyone~ (except Xiao Shi

Thank you for reading the text, cute~

Thank you, Brother Xun, did you blow up your hair today for rewarding a mine! !

Thanks for a bottle of nutrient solution from Utopia Irrigation! !

Thanks for feeding! !

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