Start with Psychologist

After all, a comprehensive autopsy on the deceased will usually not be carried out until the corpse is brought back to the bureau.

It was past three o'clock in the morning.

After all the necessary things arrived, Fang Ze asked the others to rest and recover, and planned to go to the bamboo house where Li Ruicheng died by himself.

Luo Bixin didn't go to sleep, but softly, and followed Fang Ze.

Fang Ze didn't hold her back, so he had no choice but to agree.

At the scene, Fang Ze squatted on the ground, looked at the already black corpse in front of him, and let out a breath slowly.

The corrosion of the corpse by concentrated sulfuric acid undoubtedly caused considerable obstacles to the autopsy.

To get the most accurate results, even Fang Ze needs to be careful and careful.

Luo Bixin stood beside Fang Ze at 293, wearing a mask, quietly watching this scene.

A moment later, Fang Ze took a scalpel and carefully cut open the chest of the deceased, leaning towards the heart.

Since it was a sudden death, the problem basically lies here.

Fang Ze is now using not only forensic anatomy, but also knowledge of pathological anatomy to ensure that the data is safe.

At this time, rigor mortis has begun to appear, but it has not yet spread.

Following Fang Ze's movements, a large amount of blood flowed out slowly, but it hadn't completely solidified yet.

Generally speaking, it takes at least eight hours or more for the blood in the deceased to completely coagulate.

This is also the reason why Fang Ze wanted to conduct an on-site autopsy. He was in a hurry.

It is very fast to transport the equipment from the bureau, but it will definitely take more time to adjust the car to transport the corpse back to the bureau.

Under the turbulence, some small traces may also disappear.

Fang Ze must ensure the most accurate corpse examination under the condition of blood flow

"There is no visceral breath, which means that the internal organs of the deceased are intact and have not been damaged."

"The toxicology test was normal, and the deceased was not poisoned."

"Severe ischemia and hypoxia near the heart, ventricular fibers show signs of fibrillation, everything in the precordial area is normal and there is no pathology, it is absolutely certain that it is a cardiac arrest."

If it is said that Ming Chuan and Fang Ze's decision before, there is more than 95% certainty.

Then the current probability, which has reached 100%, is that Li Ruicheng died of sudden cardiac arrest.

Fang Ze put down the scalpel and fell into deep thought.

Beside, Luo Bixin said: "It may be an accidental death."

Fang Ze didn't speak.

If it was really an unexpected cardiac arrest, then Cen Xue's departure at that time was a big mistake.

Sudden cardiac arrest is not a 100% mortality rate. If the rescue is timely, one can still survive.

But when consciousness is completely lost, if you do not immediately

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If rescue is carried out, within a few minutes, it will enter the stage of death, which is almost irreversible.

If Cen Xue was there at the time, even a little unprofessional CPR might be effective.

Seeing that Fang Ze was silent, Luo Bixin continued to ask: "Didn't you say before that there are artificial methods that can cause sudden cardiac death?"

Fang Ze nodded and said, "Indeed there are, but I didn't find any such traces near the deceased's heart just now."

"Then what should we do now? Can it be confirmed that he died accidentally?"

At this time, Fang Ze's brain was running, and various known possibilities flashed.

After a while, he turned around and took out a test tube, and dropped a few drops of blood into it.

"Refill, give me the copper ion solution."

"where"

"It's in the box next to you, with a label on it."

"it is good."

Luo Bixin got up, rummaged through the box Fang Ze mentioned for a while, then took out a small bottle and handed it to Fang Ze.

After Fang Ze took it, he picked up a glass bottle and took a look. It read: Sodium di-2-di-2-thiocarbamate.

After a pause, Fang Ze took out a little bit of the liquid in the glass bottle and poured it into the copper ion solution.

Then, he poured all the mixed liquid into the blood of the deceased.

Lifting the test tube in his hand, Fang Ze looked carefully through the light.

One minute, two minutes, and five minutes have passed, but the color of the blood still hasn't changed.

Luo Bixin blinked, stared at the blood for a while, and said, "Is the direction wrong? I didn't see any change."

But at this moment, Fang Ze's face suddenly became a little dignified.

And this solemnity comes from the test tube without any change! After a while, he said slowly: "It is precisely because there is no change that there is a problem!"

"what"

Luo Bixin doesn't quite understand. She is indeed a layman when it comes to forensic identification. After all, the criminal police and forensic division of labor is different.

All-round police officers like Fang Ze are, after all, a minority.

The next moment, without any hesitation, Fang Ze took out a new test tube and replaced it with the blood of the deceased.

He thought of a possibility.

"Give me alizarin sulfonate! It's in the reagent box."

Fang Ze stretched out his hand towards the Luo pen refill, and his speech speed was obviously accelerated.

Luo Bixin quickly got up and brought the reagent box, and searched for it carefully.

"Give."

Fang Ze took it and put a few drops into a new test tube.

"Give me Muyan!"

"Give."

"Lanthanum nitrate!"

"Give."

Finding Luo's refills was quick, and there were words on them, so it wasn't difficult.

It's just that she didn't know what Fang Ze discovered, which caused his complexion to change.

Is there any doubt about Li Ruicheng's death? Fang Ze slowly poured the mixed purple solution into the test tube containing the blood of the deceased, raised it slightly, and looked through the light.

After half an hour, the red and purple that was originally formed by the red of the blood and the purple of the mixed solution gradually faded and turned into a crystal clear light pink.

Looking at the pink liquid in the test tube, Fang Ze took a deep breath and said, "Refill, this is probably a murder case."

"What did you say!"

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Chapter 94 The Real Cause of Death 【Second Update】

"What did you say!"

Luo Bixin opened his mouth in astonishment, this reversal seems to be a bit fast.

Could it be that someone really caused this seemingly accidental cardiac arrest? Fang Ze’s blood test just now found something. "

All she could think of was the possibility of drug residue.

This is very common in forensic identification.

By testing the blood of the deceased, it is possible to detect special chemical substances that did not exist in the human body, and then deduce part of the cause or the direct cause of the death.

Fang Ze carefully put away the two tubes of tested blood, turned his head and said, "If it's blood drug residue, Mr. Ming Chuan won't miss it."

Hearing this, Luo Bixin thought for a while and nodded.

That's right, she read Mingchuan's autopsy report, it was very detailed, and it can be said that it covered all possibilities.

The pathology test, toxicology test, and chemical substance test are all normal, including blood test.

It read: The blood of the deceased was normal, and no abnormal substances were found.

If this is the case, then why did Fang Ze say with certainty that Li Ruicheng died of homicide after the reexamination? With huge doubts in his heart, Luo Bixin looked at Fang Ze, and the questioning meaning in his eyes was obvious.

Fang Ze pulled down his mask and said slowly: "This murderer is not easy, we have to prepare in advance."

"How to say"

Luo Bixin's expression froze.

Fang Ze continued: "The blood of the deceased is indeed normal, there is no problem."

"In other words, there are no suspicious drugs, chemicals or other abnormal substances."

Luo Bixin listened quietly.

"but"

Speaking of this, Fang Ze paused, and said: "The murderer used an extremely rare method to decompose a certain type of binary compound that could have been detected into an ion state, and prevented it from continuing to fuse."

Fang Ze looked at Luo Bixin: "You should know that in the ion state, no abnormalities can be detected at all."

"Ion"

Luo Bixin nodded, and said: "That's right, those are charged particles. Their structure is the same as that of atoms. There is no special method, and it is extremely difficult to detect. Especially in forensic science, it is rarely used."

Fang Ze's words made her understand the reason.

If this is the case, then the murderer's method is too secretive, and there is almost no possibility of finding out.

There is only one reason: the fact cannot be determined through testing, but the fact can only be guessed and then verified.

The gap is huge, and the degree of difficulty can be said to rise linearly.

After all, you don't know what's in the blood of the deceased at all, and coupled with the high probability of cardiac arrest after the autopsy, you can't imagine this.

"So"

Luo Bixin took a light breath and said, "Is that so?"

Fang Ze said: "Hydrogen fluoride."

"Hydrogen fluoride"

"Ok."

Fang Ze nodded and said, "A compound is a colorless gas with a pungent smell, soluble in water, poisonous but not fatal."

"This binary compound is extremely stable, and it hardly decomposes even at 127. It's really amazing that the murderer can do this."

Luo Bi

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Core ignored the so-called "12"

, She didn't know what it was at all, and she didn't intend to ask.

Just know that it is difficult to decompose.

She said, "Since it's not fatal, then"

Fang Ze explained: "Inhalation of the gas will not be fatal. If you seek medical attention in time, there will be no problem. However, if you forcibly inject it into the blood near the heart, within 2 hours, there will be a high probability of causing cardiac arrest."

"If some strong mental stimulation is given to the recipient, cardiac arrest can even occur instantaneously."

"So wicked"

Luo Bixin looked solemn, she had never heard of this thing before.

"Since it is so dangerous, why is it not included in forensic science?"