Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

The two corpses at the same fire scene had different death postures.

What does it mean?
Although Shen Yan doesn't know much about the current survey, she has a deeper research on the morphology of the corpse than Lu Chuan.

"It is generally not easy to distinguish between arson and burning of corpses after death."

"The most important thing is to dissect, observe the color and internal structure of the internal organs, and then be sure."

"But the corpse next to the bed..."

Shen Yan traced the entire outline of the corpse with her hands, and then said: "Although the limbs of the corpse have been carbonized and the edges are burnt, the crawling posture is obvious, which shows that the other party should have tried to escape at that time."

"However, whether he fled because of injury or because of the smoke from the fire, an autopsy still needs to be done."

Lu Chuan nodded, Shen Yan was right.

Although the shapes of the two corpses are different, it does not directly prove that the fire broke out after the two were injured.

After all, it was late at night. After the fire burned, the people lying on the bed might have fainted from the smoke.

So there is no corpse reaction.

"The body is burnt, so it's better to send it back for an autopsy. I'll draw the line first, and then investigate other conditions in the house."

The line drawing Lu Chuan mentioned was to use chalk to draw the outline of the body, or it should be called the trace fixation line.

With this thing, even if the corpse is not at the scene, the current survey can analyze the dynamics of a position of the corpse at that time through the trace fixed line.

"Okay, then you are busy here, I will go back to do the autopsy, and I will tell you as soon as I have any news."

The trace fixed line was drawn quickly, and the two of them didn't call other people to come over to help. After all, it was already a carbonized corpse and didn't weigh much.

Lu Chuan and Shen Yan are completely able to move.

"Be careful, the limbs are carbonized, they will be very brittle and easy to break."

Lu Chuan nodded. The carbonized corpse had already adhered to the ground, and the two were carefully prying it apart bit by bit, starting from the limbs.

"Shen Yan, look here."

The body lying on the ground under the bed was just moved, and the part where the abdomen was in contact with the ground was exposed.

Since the belly of the corpse was in close contact with the ground, the fire and high temperature did not cause erosion to this part.

"Is this... bloodstains?"

The dark red bloodstain, from the carbonization at the edge to the wet part in the middle, clearly evolved the shape and color of the bloodstain under the fire.

"It's blood. I'll report it to the captain first. Gasoline was found on the scene of the fire. Basically, it was arson, plus blood..."

"The murderer should have killed someone first, and then set fire to destroy the corpse."

The criminal investigation detachment should have just finished the morning meeting, so they can all come over.

The blood on the ground, like the corpse, has been carbonized at the edges, but because of the excessive bleeding, the part near the inside, protected by the corpse, has only become mature like blood tofu.

The blood pool in the middle is still wet and uncoagulated. The blood has not been completely coagulated, and some protein substances have not been denatured.

The two corpses were quickly carried out of the scene by Lu Chuan and Shen Yan. After loading them into the car, Shen Yan returned directly to the Criminal Investigation Detachment to prepare for autopsy.

At the scene, due to the turning over of the corpse, the smell of burnt protein, with a strange smell of meat, has not dissipated for a long time.

Liu Guodong and Lao Bai have already arrived at the scene. As for Yang Sen, he has taken leave for the past two days.

Tomorrow is June [-]th, the day of the college entrance examination. Although there was a murder case, Lao Yang was not alone here, and he was not called back.

"Let's take a picture first, and then see if there is anything that hasn't been burned."

"The focus is on the areas covered by the collapsed beams and the areas that have not been burned by the fire."

Liu Guodong arranged some work, and the three began to carefully survey the scene.

At the same time, the anatomy room of the Criminal Investigation Detachment.

"Xiao Shen, turn on the exhaust fan to the maximum air volume."

On the autopsy table, there were corpses found on the ground. This time, Wang Changjiang was the surgeon, and Shen Yan was taking notes.

"Records on the appearance of the corpse, the lower half of the limbs are carbonized, half of the face is carbonized, and the body is covered with carbonized clothing."

Wang Changjiang dictated while tearing off the carbonized parts, while Shen Yan took notes.

After the exhaust fan was turned on, the smell similar to barbecue in the dissecting room had faded a lot.

In the autopsy of the burned corpse, the first priority of the forensic doctor is to determine the cause of death of the deceased.

Did you die before catching fire, or did you die and then be burned.

This is not easy to judge from the appearance, but once the corpse is dissected, as long as the corpse is not completely carbonized, it can be judged relatively easily from the properties of the internal organs.

As long as a person is not dead, whether in a coma or a conscious state, breathing must be normal.

During the burning process of the fire, as the deceased breathes, the smoke will enter the mouth, nose and throat.

In this way, if the throat is dissected, if high-temperature burns and smoke are found, it can be determined that the deceased did not lose his life before the fire.

And if the deceased was killed before the fire, there would be absolutely no smoke left in the throat.

The position of Wang Changjiang's anatomy this time is also different from before.

In normal autopsy, most of the incisions will be made from both sides of the clavicle, showing a Y-shaped incision.

This time, Wang Changjiang cut the knife directly from the throat, and explained to Shen Yan: "The throat is the first thing to check for a corpse that has been burned, to see if there is any smoke intrusion."

Because the corpse was lying prone on the ground, the throat and half of the face were still relatively intact.

Unlike another corpse lying on the bed, its face was completely carbonized, and it was impossible to see what it looked like.

The throat was also completely indistinguishable, and the entire neck was connected to the corpse only by bones.

Shen Yan had never dissected a dead body before, this was a rare practical experience.

"For the second corpse later, you will be the chief surgeon and I will record it."

"Okay, Master."

The cut throat can clearly see the burns, and there are traces of black smoke intrusion.

"The deceased was in a prone position during his lifetime, and there were traces of smoke intrusion in the throat, indicating that during the fire, the deceased did not die directly."

"Combined with the bloodstains you found at the scene and the wound on the deceased's abdomen, it can be determined that the murderer set fire to kill the deceased after being stabbed."

There were obvious stab wounds on the abdomen of the corpse, and the clothes were covered in blood.

Wang Changjiang continued to use the knife: "In addition to the throat, the internal organs also have different characteristics on the burnt corpse."

"If the deceased was burned, there would be red spots on the body."

Wang Changjiang cut open the clothes on the abdomen of the deceased, wiped off the blood, and obviously saw red spots. (end of this chapter)