On The Day Of My 100th Blind Date, I Arrested My Date

Chapter 367: Cause of Death

, on the day of the 100th blind date, arrest the blind date partner

3 o'clock in the afternoon.

Chen Yan and Liu Qingshan returned to the Detective Unit 1.

In the dissection room, Chen Yan saw the skeleton.

At this moment, the skeleton has been put together and is lying on the dissecting table.

The person in charge of identifying the skeleton was Zhang Man, an old detective from the No. 1 detective team.

Female autopsy officers are not common among detectives.

But Zhang Man, an old detective from Liancheng Detective Unit 1, is well-known in the entire Liao Province detective system.

She will retire in one year, and everyone calls her Sister Zhang.

Hello, Miss Zhang, long time no see.

Beside the dissecting table, Zhang Man was examining the bones carefully, but he didn't raise his head when he heard someone coming in.

He didn't raise his head until he heard Chen Yan's voice: So it's Captain Chen.

The last time I saw you was half a year ago. Why are you still in charge of this case?

Chen Yan and Zhang Man met half a year ago.

At that time, Chen Yan was not the captain of the second detective team, and Li Hong was still in the first detective team.

Chen Yan nodded: I discussed it with Team Liu this morning. The case has been reported to the Criminal Investigation Team, and the serious crime team is now in charge.

Sister Zhang, how is the identification of the skeleton?

Speaking of professionalism, Zhang Man's expression became serious: I received a report yesterday morning, and I went to the scene to collect the bones at noon.

According to the shape of the pelvis, it can be preliminarily determined that the owner of the skeleton is a woman.

Judging from the shape of the pubic symphysis and the wear level of the teeth, the age of the deceased is determined to be around 24 years old.

There are generally two ways to judge the age of the owner from the skeleton.

The first is to observe the wear level of the teeth.

In autopsies, tooth wear is graded.

Different grades correspond to different ages.

However, the wear and tear of teeth is not only related to age, but also related to the food eaten, and also related to living habits.

Generally speaking, if you eat more grain-based foods, the degree of tooth wear will be heavier.

If you eat more meat, the wear and tear on your teeth will be less.

The second is to observe the shape of the pubic symphysis.

People at different ages, the shape of the pubic symphysis is different, and has strong regularity.

The combination of these two aspects can determine the age of the deceased relatively accurately.

The deceased's tibia was longer, and it can be seen that he was taller before birth. The preliminary judgment should be around 168.

The net height of women is 168, which is really not short.

Chen Yan also walked to the dissecting table to check the specific condition of the skeleton.

Sister Zhang, besides these basic information, are there any other discoveries?

have!

The cause of death of the deceased, based on some findings now, I have some inferences.

First, the color of the skeleton is normal, light gray and white, and there is no color difference near the throat and spine, indicating that the deceased should not have taken any highly toxic substances during his lifetime.

Chen Yan nodded.

If the deceased had taken highly toxic substances during her lifetime, her throat and stomach would have traces of highly toxic burns.

Correspondingly, after the skin and subcutaneous tissue in these two places rot, the highly toxic substances will also adhere to the bones at the corresponding places, which will also cause certain burns to the bones.

Even if the toxicity of the poison is not particularly strong, it will also change the color of the bone at the corresponding position.

However, the overall color of this skeleton is uniform, especially there is no color difference near the throat and vertebrae.

Basically ruled out the possibility of death by taking poison.

Of course, if the other party is poisoned by cyanide, it cannot be judged from the color of the bones.

However, because cyanide cannot be metabolized by the human body, if the deceased was really poisoned by cyanide, although it cannot be judged from the color of the bones, it will be detected because of the residual cyanide.

Sure enough, Zhang Man has carried out corresponding identification: We have also carried out identification on the residue on the bone, and found no cyanide.

The possibility of poisoning death was basically ruled out.

Captain Chen, look here.

Zhang Man bent down and pointed to the third rib of the skeleton.

I found a sharp object scratch on the inside of the third rib.

in?

Generally speaking, it is very difficult to identify the cause of death of the deceased through the skeleton.

Like suffocation.

Because this way of death will not cause any damage to human bones, after the skin and subcutaneous tissue have decayed, this cause of death cannot be found at all from the bones.

But other instrumental injuries, for example, are likely to leave marks on the bones.

Such as blunt force injuries such as percussion.

Life is fragile, but sometimes life is also very strong.

If you want to cause fatal injury to the human body with blunt weapon damage like percussion, it must be done with a very huge force.

For example, hitting the head eventually causes bleeding in the head, resulting in brain death.

Another example is knocking on internal organs, damaging internal organs, causing internal bleeding and leading to death.

But whether it is hitting the head or hitting the internal organs to cause death, it will cause damage to the bones.

Such as fractures, dents, etc.

In this way, even if the skin and subcutaneous tissue of the deceased are all corrupted and disappeared, the autopsy personnel can still judge the cause of death of the deceased through traces such as bone cracks and bone surface dents.

However, it is difficult to identify the common sharp weapon that kills through the bones.

Because stabbing with a sharp blade is likely to directly damage important organs such as the heart without touching the bones.

No damage was done to the bones, so naturally the cause of death could not be found.

However, the third rib in the left chest of this skeleton had scratches on the inside with a sharp instrument.

The scratches on the bones can basically be determined, and the sharp edge must have direct contact with the bones.

Therefore, the owner of this skeleton has a high probability of dying from a sharp weapon injury.

The third rib in the left chest is the rib that protects the heart.

There is not only one rib that protects the heart.

From top to bottom, the second rib to the fifth rib protect the heart.

The third rib is right in front of the heart.

But why would the sharps scratch be on the inside of the ribs?

Scratches on the inside of the ribs...

There is and only one possibility!

Chen Yan glanced at Zhang Man: Slash in the back!

Yes! Zhang Man really didn't expect that Chen Yan would have such a deep understanding of bone identification.

Generally speaking, all field detectives have basic common sense for corpse identification.

However, it is basically limited to judging the time of death based on superficial information such as corpse plaques and the formation of corrupt venous networks.

As for the in-depth investigation, it must be completed by professional autopsy investigators.

However, Chen Yan judged that the deceased was killed by a knife in the back just by looking at the scratches on the ribs, which is beyond ordinary understanding.

Some things are not difficult to talk about, but the difficulty lies in the window paper.

Seeing the appearance, you may not be able to guess the truth.

It is very likely that the murderer pierced the left chest of the deceased with a sharp weapon from behind. After piercing the heart, the tip of the sharp weapon just hit the third rib in front of the heart. Only in this case will the scratch on the inner side of the rib be caused!

Chen Yan lay on the skeleton, opened the visual gene lock and continued to observe: Judging from the size and direction of the scratch...

A scratch is not a simple trace.

The scratches on the ribs are of different shades. Careful observation can tell the direction and even the strength of the scratches.

Even, based on this simple scratch, the height of the murderer can be judged!