Department of Psychology Forensic

Chapter 97 QX—SX
"This is a very typical high fall injury!"

Zhou Zheng was staring at Xiong Xianxi's body, feeling uncomfortable. He had already left, and it was a very obvious suicide, but he still had to be stabbed after death.

He originally thought that forensic medicine would not see the world as well as conventional doctors, but looking at it now, he still thought things too simply.

"The inspection of high-fall injuries is based on the principle of head-to-toe, carefully inspected."

Zhou Zheng muttered to himself, since he tried the chief surgeon last time, he discovered that forensic medicine needs to have a contradictory characteristic.

Forensic doctors have to speak, and they have to tell the situation of each inspection, and attach their own inferences appropriately. However, forensic doctors can't talk too much, and more often they have to keep silent to judge calmly.

This is a degree that needs to be mastered!

Zhou Zheng was usually not a talkative person, he preferred to observe things in a quiet manner, but when he picked up the scalpel to examine the corpse on the dissecting table, he had to speak.

Craniocerebral injuries in high-fall injuries are very common, and obvious craniocerebral injuries can be seen in almost every case of high-fall death, so the head injury should be checked first.

As long as the injuries after the inspection can correspond to the falling position on the video screen, and it is confirmed that the extensive and multiple injuries on the corpse are all formed at one time, and there is no other injury except the fall injury, then it can be used as a theoretical basis for suicide.

The currently known mechanical mechanisms of traumatic brain injury mainly include acceleration injury, deceleration injury, rotational shear force injury and crush injury.

Among them, deceleration injuries are considered to be the most serious injuries!
Traumatic brain injury in fall injuries is basically concussion trauma caused by decelerated head movement.

When the brain is doing accelerated motion, it is often hit by something. At that time, because the head can be in a state of relative motion with the brain tissue, and the skull is hard, the intracranial damage is buffered to a certain extent. The damaged part mainly occurs in the part that has been hit.

To some extent, the accelerated movement of the brain is often caused by a blow, and in most cases it is just a trauma, unless the blow causes the skull to rupture.

However, the deceleration of the brain is not the case...

The deceleration movement of the brain is basically a fall injury and a fall injury. It belongs to the head hitting a stationary object while the head is in motion, causing the head to stop moving suddenly and remain in a static state.

At this time, the skull remains still, and the brain tissue in the brain will continue to move under the action of inertia, and then hit the stationary skull, and then move in the opposite direction after the impact, and so on, until it stops.

During this process, subarachnoid hemorrhage and brain contusion are very prone to occur, leading to cerebral hemorrhage or increased intracranial pressure and death.

"The occipital part of the deceased's skull was fractured, and there was no trauma to the brain as a whole. Combined with the video footage, it can be determined that the foot fell."

Zhou Zheng picked up the scalpel and scraped Xiong Xianxi's scalp bit by bit, shaving off all the hair on the scalp. In the process, he left a small part, which could not be completely shaved off.

It's not that he doesn't want to do it, but that he can't.

Zhou Zheng has very sufficient theoretical knowledge, but has no practical experience. It takes time to fully transform these theories into abilities, and he is now in the process of accumulation.

If Master shaves his head, he can shave almost to the root of the hair, and in this process, the scalp will not be damaged, and there will be no artificial damage that will affect the results of the autopsy. This is very difficult.

Of course, Cui Jun has more experience. You must know that almost every corpse needs a craniotomy during an autopsy, and the premise of a craniotomy is to shave the head.

The more corpses were dissected, the more times the head was shaved, and the hands were naturally familiar.

As for Zhou Zheng...

He only dissected a few charred corpses, and the charred corpses all had a common feature, that is, all their hair had been burned, and there was no need to shave their heads.

This is the first time he has practiced shaving his head.

It took nearly 10 minutes just to shave his head. By the time the entire scalp was exposed, Zhou Zheng's forehead was already covered with fine beads of sweat.

"No craniocerebral injury!"

Zhou Zheng carefully checked every inch of scalp on the deceased's head to confirm that there was no trauma, so that the suspicion of homicide could be ruled out.

Although the possibility of this is very low, if the deceased had a fight with someone before his death and suffered brain damage, and happened to pass by the railing of Vientiane Square, causing dizziness and falling, this is also a potentially extremely low probability event.

Now that possibility can also be ruled out.

Zhou Zheng did not end the examination of the brain immediately. He pressed on the occipital, and there was an obvious crock sound, indicating that there was a fracture here.

He picked up the scalpel and gently cut open the occipital scalp, and immediately saw the broken occipital bone. The fracture line was radial and had obvious stress points.

"Master, look, the fracture line here is convex, indicating that the point of stress is inside rather than outside. I want to open this part of the occipital bone." After confirming that Master took the photo, Zhou Zheng gently moved along the fracture line of the occipital bone. Breaking it apart, the red and white cranial tissue was immediately exposed. In addition, you can clearly see a section of the bent vertebrae, and said: "The occipital bone fracture here is caused by the protrusion of the vertebrae. It shows that the deceased fell from the foot position, and the impact force of the fall went along the bones of the lower limbs to the pelvis, and then to the spine, causing the neck spine to penetrate into the occipital part of the brain, resulting in a fracture of the occipital bone."

"The video of the deceased's fall shows that he turned over from the railing and turned his head downwards. When he fell to the ground with his body spinning, his feet landed on the ground." Cui Jun nodded.

Zhou Zheng looked away from the deceased's skull, and turned to look at the lower limbs of the deceased. He touched the femur of the deceased, and could clearly feel the fracture.

"The deceased had multiple fractures in the femur."

Zhou Zheng continued to touch down. The injuries caused by the fall of the feet are more concentrated on the joints. The legs and feet such as knee joints and ankle joints are prone to fractures, but the leg bones will basically remain intact because of the buffer of the joints, unless the height of the fall If it is too high, otherwise comminuted fractures will not occur basically.

"Both the knee joint and ankle joint of the deceased had comminuted fractures, and the injuries fully fit the characteristics of a fall from a high-fall position."

After Zhou Zheng said these words, his eyes fell on the chest and abdomen of the deceased, he took a deep breath, and then slowly let it out, his eyes became extremely dignified.

"Master, do you want to continue the autopsy?"

Zhou Zheng couldn't bear it in his heart. At the current level of autopsy, the cause of death is very clear, and it is difficult to have other possibilities. The internal organ damage of the high-falling deceased is very serious. Because the impact of the fall is transmitted to the abdominal cavity, it will almost cause internal organs to collapse. Burst damage to parenchymal organs.

"Let's do an autopsy." Cui Jun nodded and said, "At least part of the internal organs will be extracted for biological examination, to check whether there is any phenomenon of taking drugs."

"clear."

Zhou Zheng pursed his lips. In fact, he also knew in his heart that if Xiong Xianxi didn't dissect Xiong Xianxi clearly, write the cause of death clearly, and leave no room for refutation, then Lu Xin might continue to fight against the prosecutor's office. The forensic department filed an autopsy application, trying to further expand public opinion.

"troubled you."

Zhou Zheng picked up a scalpel and opened up the chest and abdomen cavity of the deceased. His eyes were covered with blood and flesh. This cannot be described as a burst injury of the organ. The large intestine and small intestine were connected together and entangled to the bottom of the lungs, with lacerations and bleeding everywhere.

"The deceased's liver, spleen, and kidney all suffered burst damage, the root of the lung was lacerated, the mesentery had multiple bleeding points, the aortic arch was ruptured, and the bleeding was severe. The amount of bleeding exceeded 3000 by visual inspection. The cause of death may be related to acute massive bleeding caused by a high fall. related."

After Zhou Zheng finished speaking, he quickly extracted a small piece of tissue from each substantial organ, and then drew blood from the heart for toxicology testing. Finally, he scooped out the accumulated blood in the chest and abdomen, and took the blood out of the chest and abdomen. After everything was done, he began to quickly sew up the corpse.

After finishing everything, more than an hour had passed, and he slowly wiped away the blood spilled from the corpse, restoring it to a decent appearance. After the blood in the chest and abdomen was gone, the corpse was significantly thinner.

Zhou Zheng covered the corpse with a white cloth again and pushed it to the temporary freezer in the dissection room.

"The cause of death can be determined after the results of the toxicology test come out." Cui Jun put down the camera in his hand, obviously he did nothing but held up the camera to record video, but it still felt very exhausting.

"Master, shouldn't it be time for us to examine the body parts found at the North Station?" Zhou Zheng put Xiong Xianxi's body into the freezer, then quickly looked towards Cui Jun, his eyes sparkling with anticipation.

"I heard you didn't sleep last night?" Cui Jun stared at Zhou Zheng suspiciously, as if looking at a monster.

"Yes!" Zhou Zheng asked in confusion, "What's wrong?"

"Aren't you sleepy?" Cui Jun couldn't help twitching the corner of his mouth.

"It's okay." Zhou Zheng closed his eyes tightly, then opened them suddenly, and said, "I can persevere!"

"Okay, then let's check those corpses." Cui Jun said weakly. He had consumed a lot of energy this day. He wanted to rest and conduct an autopsy, but seeing Zhou Zheng's enthusiasm, he simply did not Don't stop.

"Okay!" Zhou Zheng took off the disposable gloves he had just used, put on a new pair of gloves, put them on his hands, picked up the camera that Cui Jun had just put down, and said, "This time Master Check it out!"

"Ah."

Cui Jun nodded, and then said: "You wait and I will, I will go to the underground morgue to take out the body parts."

"Then I'll write out the forensic report first." Zhou Zheng walked towards the outside of the dissecting room with his camera in hand.

"How did you become so active?" Cui Jun froze for a moment with puzzled expression on his face.

"I don't want to work overtime!" Zhou Zheng walked to his station after leaving a sentence. Now there is still time, as long as he finishes all the work that needs to be done by himself, he can leave work on time or earlier, so that he can go to the appointment time to eat.

He had been thinking about this meal for a while.

It's not that he has any unreasonable thoughts about Wang Suanlian, but because this is what he promised. If he doesn't make it clear, he will always think about it in his heart. In his character, he is unwilling to owe others.

"You stinky boy!"

Cui Jun looked at Zhou Zheng's back, and remembered that when he was in the car, the latter said he had an appointment tonight, and a smile appeared on his face.

Don't you care about that?

Is the elm head finally getting better?

Cui Jun was quite gossip about his disciple's emotional affairs, he made up a lot of possible things in his brain, and walked towards the underground morgue with a smile on his face.

……

Ten minutes later, Cui Jun came back with a body bag full of body parts.

In the dissection room, Zhou Zheng was recording with a camera, and Cui Jun placed the body parts on the corpse bed.

"Biological samples were extracted from each corpse for DNA testing. The results have not yet come out, and it is impossible to determine whether it is related to the corpse of the cross-sea bridge dumping case. Therefore, the case has not been merged and must be tested separately."

What Cui Jun said seemed to be explaining to Zhou Zheng, and also seemed to be explaining to the video record. After he finished speaking, he began to fiddle with the corpses.

"what?"

Suddenly, Cui Jun's eyes lit up. He held the torso body and carefully stared at a piece of skin on it.

"Zhou Zheng, come and see, is this a tattoo?" Cui Jun turned his head and waved to Zhou Zheng.

"Okay." Zhou Zheng leaned over to look. This is the back of the torso. Judging from the position, it should be the position of the right shoulder blade. There is a faint line of marks on it. It looks like a burn, but it is different from a burn. He said: "Master, it really seems that the tattoos have been washed here, and these injuries are still very new. They should have been injured in the last half month."

"It's so much easier to have tattoos!"

The tiredness on Cui Jun's body disappeared immediately. Regardless of whether these corpses were related to the corpse dumping case at the cross-sea bridge, at least the source information of this corpse would not be so difficult to identify.

"The tattoos on the deceased's body are like laser-washed tattoos. This method can only remove the superficial part of the pigment, and the pigment deep in the dermis will still remain in the body." Zhou Zheng stared at the place carefully. Rough and blurred skin, tattooed skin is impossible to restore to its original appearance and is very recognizable.

"Finally there is a clue!"

Commander Cui breathed a sigh of relief. Judging from his experience, he felt that these corpses belonged to the same corpse, that is, the corpse of the cross-sea bridge dumping case.

Now there is such directional information as tattoos, which plays a vital role in the investigation of corpse source information.

"Now let's dissect it!"

Cui Jun picked up a scalpel, carefully separated the muscles on the back of the deceased, cut off the whole piece of muscle tissue with tattoos, and placed it on the dissecting table alone.

The dark red muscle tissue looks like meat from a market butcher's stall, which is very visually impactful.

It's just that now both of them are focusing on the tattoo.

Cui Jun held the hemostat in his left hand to fix the muscle, and held a scalpel in his right hand to peel off the skin layer by layer in a meticulous manner.

When the deep layer of the dermis was peeled off, the tattoo ink emerged, and two strings of English letters came into the sight of the two of them.

【QX—SX】

(End of this chapter)