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's past three in the morning.

When 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.

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

Fang Ze didn't hold her back, so he had to agree.

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

The corrosion of concentrated sulfuric acid on the corpse 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 next to 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 point rigor mortis has begun to appear, but has not yet spread.

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

Generally speaking, the complete coagulation of the blood in the dead body takes at least eight hours or more.

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 take more time to switch the car to transport the corpse back to the bureau.

Under the bumps, some small traces may also disappear.

Fang Ze must ensure the most accurate corpse detection 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, there are signs of fibrillation in the ventricular fibers, 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 broke up before, there is more than 95% certainty.

So now the probability has reached 100% 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% fatality rate, if the rescue is timely, you 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 we confirm the accidental death?"

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 glanced at it, which 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, and 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 in forensic identification, after all criminal police and forensic division of labor is different.

Almighty police officers like Fang Ze are, after all, rare.

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! Something, in the kit."

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

Luo Bixin quickly got up and moved the reagent box, and searched carefully.

"Give."

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

"Give me the peony salt!"

"Give."

"Lanthanum nitrate!"

"Give."

Luo's refill is very fast to find, there are words on it, it is not 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 color formed by the redness of the blood and the purpleness 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 common in forensics.

Through the detection of the blood of the deceased, special chemical substances that did not exist in the human body can be found, and then part of the cause or direct cause of the death can be deduced.

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 Ming Chuan's autopsy report, it's very detailed, it can be said that it covers all possibilities.

Pathological testing, toxicological testing, and chemical substance testing are all normal, including blood testing.

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 a huge question in his heart, Luo Bixin looked at Fang Ze, and the questioning meaning in his eyes was obvious.

Fang Ze pulled off 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. The structure diagram 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 facts cannot be determined through testing, but the facts can only be guessed and then verified.

The gap in this is a world of difference, and the difficulty coefficient can be said to rise in a straight line.

After all, you have no idea what's in the blood of the deceased, and with the high rate of cardiac arrest after autopsy, you wouldn't expect it.

"So"

Luo Bixin took a light breath and said, "Really?"

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 is really amazing that the murderer can do this."

Luo Bi

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Core ignores the so-called "12"

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

Just know it's hard to break down.

She said: "Since it is not fatal, then"

Fang Ze explained: "Inhalation of the gas will not be fatal, and there is no problem if you seek medical attention in time, but 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"