L.A.W.

In the Forensic Forensics Department, Qiao Lier stood in front of the cold dissection table, and the body parts discovered four times were neatly arranged on it.

The left arm, right leg and head soaked in strong acid found in the warehouse for the first time are the same person as the body found in the slaughterhouse for the fourth time. The male reproductive organs were cut off by a scalpel. The identity of the deceased has been confirmed as fitness Coach Wei Donglin.

The right arm, right leg and torso found in the warehouse for the second time belong to the same person, whose right palm was cut off by a scalpel. The identity of the deceased has been identified as piano teacher Chen Mingmin.

The third time the head was found in Xiangyong, the nose was cut off by a scalpel, the identity has not yet been confirmed.

"Yixiu, can you tell if it's been frozen?" Qiao Lier pieced together the body parts: "It's been four times and I still haven't been able to make a complete person."

"This, of course it's possible!" Zhang kicked his feet and slid over in a swivel chair: "My dear, you can tell from the change in the properties of the colloids. Freezing will destroy and denature the properties of the muscle protein colloids."

"Be more specific." Qiao Lier raised his chin slightly.

"Would you like to test me? It's a sample! The freezing of bound water, the protoplasmic colloidal state in the muscle fiber, the main dispersant in this colloid is protein, and there is bound water with strong affinity with protein around the protein molecule During the freezing process, free water first freezes. As the temperature continues to drop, the amount of frozen water gradually increases. When the amount of frozen water exceeds a certain range, the freezing of bound water occurs, and the freezing of bound water causes the structure of colloidal particles to suffer. Mechanical damage weakens the affinity of protein to water. When thawing, this part of water can no longer be adsorbed by protein particles, so that the protein loses bound water and becomes a dehydrated protein, which makes protein particles easy to coagulate and precipitate , and lose its reversibility, so that the intracellular protoplasm cannot return to the colloidal state before freezing.”

Zhang Yi touched his chin and continued: "When the meat is frozen, as the amount of ice crystallization increases, the acid concentration in the residual liquid increases accordingly. At this time, on the one hand, due to the increase in the concentration of salt, The salting-out effect of the protein causes the soluble protein in the solution to gradually decrease. On the other hand, the freezing of water causes mechanical damage to the protein, so the buffering effect of the protein in the solution is gradually weakened, and the concentration of hydrogen ions in the solution Therefore, after freezing, even if there is a small increase or decrease in acid in meat, it will have a great impact on the concentration of hydrogen ions, thereby promoting the denaturation of protein. When the pH is about 6-7, the degree of denaturation is low and stable. At 6.0, it increases rapidly."

"Understood, it really is Yixiu." Qiao Lier glanced at Zhang Yi appreciatively.

"Smart, you'll understand as soon as you say it." Zhang Yi snapped his fingers, "As expected of our little Qiao."

"How did I become your family?"

"The same family." Zhang Yi patted his chest: "Don't worry, I'm not good at that, and I will never set your mind on it, and I hope to marry you as soon as possible."

"Fuck you, who is going to marry!" Qiao Lier kicked him, "Then how do I know if it's slow freezing or quick freezing?"

"That would have to be judged from the other side."

"tell me the story."

"The change of tissue structure, the main reason for the change of tissue structure is due to the mechanical destruction of ice crystallization. During the freezing process, due to the movement of moisture inside the fiber, the dehydration and shrinkage of the fiber are caused, which promotes the protein particles in the fiber. and collection. After the water in the muscle tissue is frozen, the volume increases by about 9%.”

Zhang Yi took out the sliced ​​picture of the meat texture and said, "When the meat is frozen, the ice crystals formed in the meat will inevitably exert a certain amount of mechanical pressure on the tissue. In the case of rapid freezing, the resulting frozen crystals are relatively small. The resulting pressure per unit area is not large, and because the muscle has a certain degree of elasticity, it will not cause damage to the muscle tissue. However, if it is slow freezing, the frozen crystals formed are large in size and unevenly distributed, so it is crystallized by ice The resulting pressure per unit area is very high, causing damage and destruction of the tissue structure, and at the same time, compressing the fiber assembly. This tissue damage caused by ice crystallization is mechanical and therefore irreversible, and will cause A lot of gravy was lost."

"What gravy is missing?" A voice suddenly came out, "Is it sirloin steak or T-bone steak? What delicious food are you hiding?"

The two turned their heads and saw that Yu Zheng had slipped in without knowing when.

"Zheng Zheng." Qiao Lier squinted at Yu Zheng: "We are talking about human flesh, not beef."

"Are you sure you are talking about human flesh instead of beef." Yu Zheng further confirmed: "But I heard you discussing thawing and gravy loss. I know how to lock the gravy of frozen meat."

"That's what we're talking about." Qiao Lier pointed to the body parts on the dissecting table, "Do you want to braise in soy sauce or stew in clear water?"

"Ah?" Yu Zheng's face was stretched, "I'm going to the bathroom."

"Go out and turn left." Zhang Yi said with a smile: "No, walk slowly."

Seeing Yu Zheng ran out covering his mouth, Qiao Lier asked puzzledly, "What is he doing here?"

Zhang Yi shrugged: "Who knows, maybe come here for a stroll when you have nothing to do!"

"My brain is pumped, come here for a stroll?"

"Maybe I forgot! Never mind~" Zhang Yi pointed to the body parts and the report, "Let's continue to study."

"Hmm~"

Yu Zheng, who finished vomiting in the bathroom, looked at the Judicial Forensics Department infinitely sadly and affectionately, wondering if he would set up a "Strange People Don't Get Near" memorial archway next time, what is he doing here?Ouch, my little one was so scared by the two of them that I almost forgot about it.

Yu Zheng shook his head. Originally, he had asked for three buffet coupons for the two of them to have a big meal tonight, but now it seemed that he couldn't eat with the two of them, otherwise he would be so disgusted that he couldn't eat it, and it would be a big loss.

Jinbi Huafu.

"Yuhang, step over the brazier and wash your hands with grapefruit leaves, and you will throw away all bad luck." Mrs. Liu sat in the hall with a cane.

The cynical Liu Yuhang stepped over the brazier obediently, washed his hands with the water boiled with grapefruit leaves, his mother picked up the grapefruit leaves from the basin, dipped them in water and sprinkled them from head to toe, "From then on, bad luck stays away from my son."

"Oh, Mom!" Liu Yuhang wiped off the water from his hair and shoulders with his hands: "My hairstyle was done by the chief designer KEN at Yaohan, and this coat is just bought by Armani, more than 3000."

"I don't care if you are grandma or papa." Mrs. Liu knocked on the ground with her cane, "You unfilial grandson, just go and clean yourself honestly."

"Don't make your grandma unhappy." Liu Yuhang's mother urged, "Hurry up and thank your uncle, you really can't get out this time without him."

"I don't understand either." Liu Yuhang muttered in a low voice: "It would be easier to find someone to fix that woman earlier, so what's the trouble with that lawyer?"

"What do you know, you little brat!" Liu Chuyuan snapped at his son, "Of course it would be best to settle the matter in court."

"Forget it, don't mention it." Liu Chutao waved his hand: "It's not a last resort, and I don't want to use this method to deal with it. It's easy to fall into something."

"Chu Tao, I really don't know how to thank you!"

"Just take care of your son!" Liu Chutao went to the mini bar and poured himself a glass of champagne. It's best not to be caught this time.

G city government.

The mayor, Gao Jie, who just came back from the meeting, pressed the answer button on the phone: "I see, we are missing."

A Buick business car parked outside the court, Lu Wenzhu wearing black clothes and sunglasses: "It's because my subordinates can't do things. I didn't expect him to threaten Li Yun with Li Yun's family in the end."

"You're being careless, and he's in a hurry." Gao Jie closed the office door: "Liu Chutao is a very cautious person, and this time his nephew's affairs did not slow him down."

"Do we want it?"

"Don't mess around, you won't be able to eat hot tofu in a hurry." Gao Jie took off her glasses and leaned on the executive chair, "Let him sit in the seat of the municipal party committee secretary for a while, and it will be a matter of time before he is pulled down."

The conference room of the Criminal Investigation Brigade.

"Xiao Guo, did the club find anything?"

"No." Guo Mingxiang handed the copied member information to Zhao Jiefei: "His students are all women."

"Then it has nothing to do with the men of Leyou." Zhao Jiefei twirled the pencil in his hand, "Liu Hua, is Huang Shiyu back?"

"not yet."

"It's impossible for the two deceased to have no connection at all." Zhao Jiefei frowned: "Where did the fitness trainer disappear in the end?"

"PANDPAND bar."

"Have you found anything?"

"The bartender, the security guard, the sanitation... the whole bar has been asked all over the place, and every time he comes he picks up girls." Li Shi shook his head, and pressed the "play" button: "The video before the disappearance, I was with you all night. Changed five or six women, it's fierce enough!"

"I'm not afraid of being exhausted." Liu Hua had a smirk on his face.

"Is that really going to die?" Zhen Liang looked at Liu Hua curiously, and then at Li Shi: "Seniors, give me some guidance."

"How do we know?" Li Shi and Liu Hua looked at each other and smiled, "It's better to ask the forensic doctor."

"Little C is a girl." Zhen Liang scratched his head embarrassingly: "You make me feel ashamed to speak."

"Who told you to ask Little C." Liu Hua tapped him, "Of course ask Beauty Qiao."

"I'm not familiar with Qiao's forensic doctor." Zhen Liang murmured in a low voice, "Every time I see him, I'm always taken to pack the corpse."

"You don't need to be familiar with it." Li Shi squinted at Zhao Jiefei: "Boss is familiar with it."

"Come on!" Zhao Jiefei glanced at them angrily: "Come back to business, Yixiu's appraisal result is out."

"Damn it!" Li Shi's eyes widened, "If it's broken, take it to the freezer."

"According to the identification report provided by Xiao Qiao, apart from Chen Mingmin's right hand, Wei Donglin's, and the nose of Anonymous's, they were cut off with a No. 7 handle and a 24D blade, which is a commonly used scalpel for amputation." Zhao Jiefei pointed with his baton Picture on the projector: "Other parts were cut with a bone chopper."

"What does that mean?" Zhen Liang asked puzzled.

"Butcher." Zhao Jiefei pinched the knuckles of his fingers: "Frozen, bone chopping knife, familiar with private slaughterhouses, one of the butchers."

"Why is it one of them?" Guo Mingxiang flipped through the pictures of the autopsy, "You think there is an accomplice."

"Hmm~" Zhao Jiefei nodded: "Is it possible for a butcher who knows how to use a scalpel?"

"If there is really an accomplice." Li Shi touched his chin: "What is the relationship between the two?"

"I haven't figured it out yet." Zhao Jiefei was helpless.

"Team Zhao." A policeman knocked on the door of the meeting room with the information: "Another deceased person matches the DNA of the missing person."

"I found the third one too." Zhao Jiefei took the information, "Luo Xing, model?"

"Do you want to notify the family members to identify the body?" Li Shi leaned over: "But we only have his head, and the nose is missing."

Everyone is petrifying.

"The place of disappearance is the Peak Park." Zhao Jiefei took out the photos from the file bag and distributed them to others.

"The nose is very straight." Guo Mingxiang looked at the handsome guy in the picture: "It's a pity."

"Could it be human organ trafficking?" As soon as Zhen Liang finished speaking, he found that the people around him looked at him like a fool.

Li Shi squinted at him: "Do you really think that medicine can be so advanced that you can cut off an ear, nose, hands and feet and put them on for others to use?"

"Robot-style assembly." Liu Hua covered half of his mouth and smiled: "No wonder Little C doesn't like you, SB!"

Zhen Liang was criticized with a black line.

"Chen Mingmin is a music teacher, most of his hands for playing the piano are very slender." Zhao Jiefei thought: "Luo Xing is a model, with a particularly beautiful nose."

"Boss, according to your inference." Liu Hua leaned forward: "Could it be that the fitness trainer's ability is particularly good, so he cut it?"

"This possibility is not ruled out." Zhao Jiefei crossed his fingers and muttered to himself: "He is collecting something, something he thinks is beautiful."

"After collecting it, freeze it?" Zhen Liang felt goosebumps all over his body after imagining it.

"Shitou and Xiao Guo went to find out who Luo Xing had contact with before he disappeared." Zhao Jiefei pointed at Li Shi with the tip of a pen: "The focus is to see if there are any similarities or intersections among the three deceased."

"know."

"Liu Hua, check the slaughterhouse and cold storage with Zhen Liang." Zhao Jiefei took out a pen and paper and wrote down a string of mobile phone numbers: "Zhu Rourong, this person is more familiar with the black market trade in privately slaughtered meat, go and ask."

"Boss, you have an Octopus!" Liu Hua unfolded the note: "There are all kinds of informants, and the pork guy will not let it go."

Guo Mingxiang reminded: "Based on the current evidence, we cannot apply for a search warrant to enter the slaughterhouse and cold storage."

"There is no such thing as a road." Zhao Jiefei closed his eyes and turned his neck a few times, "I will ask the leader to say hello to the Inspection and Quarantine Bureau, and ask them to send someone to help."

"Haha! This is a great move!" Liu Hua raised his thumb, "In this way, it is justifiable to enter in the name of health inspection and quarantine."

"The meeting is over~" Zhao Jiefei raised his hand.

After each received the task, they dispersed one after another.