I'm a Super Cop

It's 2:20 p.m.

The ladder classroom of Yangcheng criminal Institute is already full of people.

Forensic students from all over the country sat in each corner of the ladder classroom.

All of them are relaxed, and they exchange interesting things that they like to see and hear in their work, and some people laugh at each other from time to time.

At first, Gu Chen prepared to sit in the middle, but when he accompanied Lu Weiwei to the toilet, it seemed that his seat had already been seated there.

Lu Weiwei came forward and knocked on the table: "this classmate, this seat is ours?"

"Yours?" A middle-aged female student glanced at Lu Weiwei, and then glanced at Gu Chen behind Lu Weiwei. She was a little reluctant to say, "but I didn't see anything on the table."

Lu Weiwei didn't say anything, but observed it from left to right. Then she found the transcripts of herself and Gu Chen in the drawer under the table.

"Ah! It's always here. " She said.

The middle-aged female forensic immediately embarrassed, but politely smile: "sorry ah, before we sat here, we really did not see anything on the table."

"What's more, your elder sister's eyes are very bad, and her myopia is also very serious. You can see that the front row is full of people. Sit in the back row. I can't see the projection and whiteboard clearly, or you can see..."

The middle-aged female forensics glanced at the last row of the ladder classroom, her palms folded, and she was also embarrassed to say, "would you like to see if you can sit in the back? I'm really sorry

"But we can't see clearly in the back row." Lu Weiwei glanced at the back seat, only to find that there were several spare seats in the corner of the last row. She was not happy.

This is obviously a special seat for learning dregs, but everyone who comes to Yangcheng penal Institute comes to learn knowledge. Sitting there, Lu Weiwei is afraid that she can fall asleep in class.

It would be embarrassing to fail the exam.

"Please." The middle-aged female forensic medicine squinted, but also folded her hands to express sorry.

"Or Let's sit in the back. " Gu Chen doesn't care about Tao.

Lu Weiwei smell speech, although in the heart has ten thousand not willing, but still can only promise way: "that line, listen to you."

Taking out two transcripts from the drawer, Lu Weiwei reluctantly followed Gu Chen and sat in the most corner of the ladder classroom.

From this perspective, we can really overlook the whole staircase classroom, but it is too far away from the platform.

They threw the transcripts on the table and sat down quietly.

Lu Weiwei suddenly felt that if this position was put in her student days, it would definitely be the best seat for lovers.

But now the situation is different, everyone has to learn real skills, go back with what they have learned, and bear the task of training.

Therefore, Lu Weiwei did not dare to slack off

Police officer Wang looked for two people for a long time, and finally found Gu Chen and Lu Weiwei in the back row, so he also held the notebook to the two people's side.

"How did you get here?" Asked officer Wang.

Lu Weiwei was disappointed and said, "just Suddenly, I went to the toilet, and my seat was occupied. "

"You really are." Officer Wang seems to realize that his voice is a little too loud, so he quickly lowered his tone: "next time, remember to ask Gao Chuanfeng to look at your seat for you."

"Well." Lu Weiwei nodded and said.

But when I look back, I suddenly feel what's wrong.

"Ah? What are you doing here? Is your seat taken? "

"No Officer Wang waved his hand and glanced at the seat with his chin: "all the people sitting beside me are professional forensic doctors. I am a person who doesn't understand forensic medicine. Sitting with these people, I feel that I can't understand what they say. I don't even know some simple things."

"So You choose to sit with the underdog? " Asked Lu Weiwei.

Officer Wang smiles: "at least later, the instructor will ask questions, and I won't be able to point to us. It's safer to sit here."

"Ha ha." Lu Weiwei gave a dry smile, but she didn't have a good way: "I said Lao Wang, you really think highly of yourself. When the instructor asked questions, would he choose you as a half baked student? Think too much, you? Isn't it fragrant to sit with Mr. Gao Chuanfeng and Mr. Liu? "

"Well, one thing is the same thing. After all, the three of us are together and can't be separated."

Police officer Wang also has his own set of fallacies, mainly sitting in the forensic heap, no sense of security.

If some people ask themselves some small questions, and they can't answer them, it's a small matter, and it's a big thing to disgrace Furong Branch.

Officer Wang can't fail to understand this.

……

……

It's two thirty.

Bareheaded instructor Zhang Hui, with a pile of thick materials in his hand, accompanied by two other first-class supervisors, came to the podium of the classroom.

As before, we sat at the long table on the podium, facing everyone.

And Yang Ting came to the multimedia operating platform, responsible for the projection of copy, as well as whiteboard writing.Obviously, Yang Ting is Zhang Hui's teaching assistant.

"Hello, Hello, hello." Bareheaded instructor Zhang Hui patted the microphone. After confirming that the equipment was normal, he said:

"OK, are we all here?"

"It's all here." Assistant Professor Yang Ting said.

"Well, let's start now." Zhang Hui raised his voice, picked up the thermos cup on the table and poured a mouthful of medlar tea. Then he said to everyone:

"there are many young forensic doctors from all over the country, some of them are old ones, some are young ones, and some are non forensic professionals."

Said here, the scene of all people can not help but look at the direction of Gu Chen.

Zhang Hui didn't care about these details, and said directly: "so, here, I must take care of all the students, try to teach in easy to understand language, so that we can understand, learn and take away, so as to help you successfully complete this period of study."

"Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa."

I don't know who took the lead.

Zhang Hui pressed his hand and saw the applause dissipate. Then he said, "the old rule, first ask a simple question."

"If You found a corpse in the water. How can we, as forensic doctors, determine the cause of death of the party concerned? "

"Drowning should have some characteristic manifestations, which can be judged according to these manifestations." Zhang Wenbo, a forensic physician, said in a rush.

"Yes, then What if it was a highly corrupt corpse? The body has changed beyond recognition. Is there any way for our forensic doctors to do it? " Zhang Hui asked again.

"Diatom detection." In the crowd, I don't know who yelled.

Zhang Hui nodded with satisfaction: "yes, the answer is yes, then this method is diatom test."

Glancing at the direction of Yang Ting, Yang Ting immediately turned off the front lights and released the slide pictures.

At this moment, the blue background copy is ready to appear.

Zhang Hui said in a loud voice: "as a single-cell plankton, diatoms may have never dreamed that it would be helpful for our forensic work if it moved inadvertently."

"But it's a great honor to tell you that our scientific research team of Yangcheng Institute of criminal science and technology, Guangdong Province, has conducted long-term research on diatom detection in forensic medicine, and has achieved fruitful results."

"We have established a forensic diatom detection system based on membrane enrichment, which has the characteristics of high efficiency, accuracy, pollution prevention and high sensitivity."

"It has solved the major problem of traditional forensic diatom test, greatly improved the application value of diatom test in the diagnosis of drowning, and polished the" golden signboard "for forensic diatom test

"Pa Pa Pa Pa Pa Pa Pa Pa Pa."

In the face of Zhang Hui's confident introduction, the students on the stage also applauded with great cooperation.

Zhang Hui pressed his hand and looked back at the PPT picture. Then he said with a smile: "the picture you see now is the picture that our team received at the annual National Science and technology award conference held in Beijing two years ago."

"We, Yangcheng Institute of criminal science and technology, presided over and completed the project of" key technologies and equipment for forensic diatom examination "and won the second prize of national science and technology progress award."

"And this is another award for the project after winning the first prize of the science and technology award of the Ministry of public security five years ago."

"Therefore, it is enough to see that we have carried out in-depth excavation on the key technologies of digestion and extraction, enrichment and extraction, observation and analysis of diatoms, as well as scientific and technological innovation and application in equipment research and development."

"Diatom is the" dragon rule "of forensic medicine

"Dragon ruler?" When hearing the instructor Zhang Hui say this noun, Gu Chen is also a bright eye, and quickly write these three words on the blank notebook.

Zhang Hui continued to smile at everyone and said, "as a single-cell plankton, this diatom may have never dreamed that it would be able to provide help for forensic work if it moved inadvertently."

"This little diatom can play a huge role in judging the cause of death of bodies in water."

After that, Zhang Hui suddenly stopped speaking and suddenly asked, "well, the question is, when a drowning person drowns, these diatoms are inhaled because of choking water, and then through what role are these diatoms brought to the drowning person's lung, liver, kidney, bone marrow and other organs and tissues?"

"Blood circulation."

As soon as Zhang Hui's voice fell, Gu Chen connected seamlessly.

However, Gu Chen sat in the last row, his voice was small, and Zhang Hui did not hear clearly.

On the contrary, Zhang Wenbo, a forensic medical examiner, heard him sitting in the front row, so he said in a loud voice: "it is through blood circulation."

"Quite right." Zhang Hui nodded slightly, but also threw up his right index finger and said: "it is through our blood circulation that we are taken to the lungs, liver, kidney, bone marrow and other organs and tissues of the drowning person."

"But diatoms can be observed under a microscope." Zhang Hui said here, the tone suddenly became soft, his eyes scanning the audience.

At this moment, all the students are looking down to take notes, very serious.But in the corner of the last row of the ladder classroom, Zhang Hui found Gu Chen holding his chin like listening to a book.

Gu Chen holds his chin in one hand and seems to have no intention of writing. He just looks at himself.

Zhang Hui frowned and could only continue: "generally speaking, if diatoms are found in the tissues and organs of corpses in the water, it means that the victim died of drowning."

"On the contrary, it means that the victim was not drowned, but was thrown into the water after being killed by other means."

"So further analysis, if the diatoms found in the organs are significantly different from the diatoms found in the water samples from the corpses, it means that the victim has drowned elsewhere, so diatoms can also play a role in inferring the place of drowning."

See all the records of the rapid, but Gu Chen is still motionless, bald instructor Zhang Hui immediately displeased.

How could the student not even remember the record?

How to review if you don't remember the record?

However, due to the large number of students, Zhang Hui could not point out it in person. He just pressed down his anger and continued to let his TA Yang Ting play the slide.

"OK, what you see now are some sample pictures. I hope you can record them carefully."

"Therefore, how to detect diatoms from bodies in water, especially in circulatory organs, has always been the focus of attention of forensic scholars, and is also a recognized problem in the world."

Glancing at the crowd, Zhang Hui said again, "why should diatom be favored?"

When Gu Chen began to support his cheek with one hand, Zhang Hui couldn't help it.

But he did not name Gu Chen directly. Instead, Wang Jingguan, who was next to Gu Chen, said, "the student sitting in the last row and taking notes, tell me what diatom is?"

When the voice dropped, everyone turned around to have a look.

Officer Wang's expression suddenly froze, looked around quickly, heart said not so bad luck? Can't escape the roll call in the last row?

But for a while he couldn't say it, so he quickly pretended not to know and continued to take notes.

"It's you. You don't have to look at others. It's the male student sitting in the last row and in the corner." Zhang Hui drinks a mouthful of medlar tea, intentionally or unintentionally reminds way.

Lu Weiwei quickly lowered her head and kicked officer Wang with her feet. Then she whispered, "Lao Wang, say more about you."

"Yes." Officer Wang frowned and whispered to Lu Weiwei, who bowed his back and stood up reluctantly.

People look at the Furong Branch of the criminal investigation group of police officer Wang, suddenly in the heart secretly happy.

Heart said that instructor Zhang Hui can really pick people.

Who is not a good choice? He even picked a non forensic professional officer Wang. There is a good play to watch.

Everyone is waiting for Comrade Wang to make a fool of himself.

Seeing that officer Wang didn't respond for a long time, Zhang Hui, who put down the thermos cup, disdained to ask: "what? Don't know? "

"Well, diatoms are It is... "

At this time, officer Wang suddenly found that he pushed a notebook from Gu Chen.

Blank notebook, full of several neat lines of text.

"Diatom is a kind of aquatic unicellular plant, widely distributed in the oceans, lakes, rivers, reservoirs, ponds, ditches, puddles and other natural water bodies, some of which also grow in moist soil and other surface objects," Wang said

The voice falls, the scene people suddenly surprised.

Officer Wang, who was still unclear just now, was like a different person in an instant, which was unexpected.

Instructor Zhang Hui is also a Leng, left and right to look around colleagues, looked up and asked: "what else? Do you have anything else to add? "

"Make up for Add? " Officer Wang was stunned and scratched the back of his head.

But at this time, Gu Chen's transcript, but again quietly pushed to the front.

"Diatoms vary in size, ranging from a few microns to a few millimeters, with different shapes," Wang said

"Diatoms, on the other hand, are shells of silica and pectin, the cell walls."

"The shell surface has specific symmetrical ornamentation and fine microstructure, which results in a large number of diatoms with morphological differences."

Wang's official voice dropped, but also a deep breath of heavy gas.

All the people on the scene were stunned.

A police officer who is not a professional in forensic medicine should be able to describe diatoms in such detail.

The level of fragrance, let alone ordinary forensic medicine, is a professional veteran. When giving out such information, they have to think over the technical terms repeatedly.

But officer Wang blurted out and was absolutely right.

It's Zhang Hui's turn to be silly.

Originally, I wanted to beat Gu Chen who was away from home with his colleagues, but I didn't expect that Gu Chen was sitting next to Xueba?

Zhang Hui was embarrassed, but he still refused to give up.He first pressed his hand and asked officer Wang to sit down first. Then he asked, "who knows what are the characteristics of the morphological structure of diatom cell walls?"

All the students at the scene quickly bowed their heads and did not speak.

At the beginning, instructor Zhang Hui's questions came one after another. Everyone was not familiar with diatom detection, so they came here for training.

But Zhang Hui is good, questions one by one, how can we answer them? What if the answer is wrong?

Personal embarrassment is small, to the unit disgrace is big.

Zhang Hui didn't seem to ask anyone else. He pointed to Lu Weiwei, who was beside Gu Chen, and said, "well The female student will answer it. Yes, the female student sitting next to the male student who answered the question just now is talking about you

Lu Weiwei is also inexplicably named, the heart said that this is a disaster to the East ah, Lao Wang answers the question even to himself to be implicated.

Lu Weiwei is also wriggling to stand up, low head, scratching the back of the brain.

But at this time, Gu Chen's transcript is pushed to Lu Weiwei again.

Lu Weiwei chuckled and glanced for a few seconds before she said aloud to the platform: "the morphological structure of diatom cell walls It has the characteristics of specificity, stability and diversity, which is an important basis for species identification of diatoms

"You know that, too?"

Lu Weiwei's voice dropped, and instructor Zhang Hui was stunned again.

The heart says that the students who are away from home are not sitting with one Xueba, but two?

Think of here, Zhang Hui is also some headache, but in Zhang Hui has not yet opened his mouth.

Lu Weiwei, who had already answered the question, added in a loud voice:

"in addition to morphological characteristics, diatoms also have many other important characteristics, including huge biomass, sensitivity to changes in living environment, indicating paleoenvironment, etc

"These characteristics make diatoms widely used in red tide detection, aquaculture, water quality monitoring, resource investigation, paleoenvironmental analysis, petroleum exploration, forensic identification and other fields."

Zhang Hui:???

How can you play cards in a routine way?

……