Li Xiangbin, Song Ting and others came to the forensic room.

Two corpses were lying on the cold autopsy table.

Song Ting, the anatomical wound has not been sutured yet.

From an anatomical point of view, the key part of her investigation is the heart.

Cardiac arrest.

The problem must lie near the heart.

Especially myocardial fibers.

Song Ting said:"In the past two days, our forensic department has conducted a comprehensive investigation on the two corpses."

"From head to toe, nothing is missing"

"Unfortunately, no man-made wounds were found"

"Wang Ze, do you think there is anything wrong here?"

After the words fell, everyone looked at Wang Ze.

In the conference room, they could express their opinions on the case as much as they wanted.

But in the forensic room, it was difficult for them to interrupt.

Including Li Xiangbin.

After all, there are specialties in the industry.

Like There are very few people like Wang Ze who are fully blooming.

Faced with everyone's gaze, Wang Ze did not immediately answer Song Ting's words.

Instead, he circled around one of the corpses several times.

This was Yan Jiakui The corpse.

Judging from the face, the deceased's face was ferocious, with facial muscles contracting and pupils dilated.

It was obvious that he was frightened. He must have seen something terrible a few seconds or more before he was alive.

This.

Now. Now there is no doubt.

The point is.

A cremator who comes into contact with dead people every day.

A person who is almost immune to so-called supernatural events.

He was scared to death.

It is really strange.

There should be a deeper reason for this.

Observe and think about it. After a while, Wang Ze put on gloves and gently opened the anatomical wound.

The blood had basically coagulated.

But a little bit of liquid blood could still be seen.

"Q-tips."

Wang Ze came closer and stared at the wound near the heart.

At the same time, he stretched out his hand.

Hearing this, the forensic doctor on the side quickly stepped forward and handed Wang Ze a cotton swab.

Wang Ze took the cotton swab and carefully took out a little bit near the myocardial fiber. blood sample.

Seeing Wang Ze's actions, Song Ting couldn't help but said:"Do you still want to test the blood for drug residues?".?"

"We have tested it twice and there is no toxic reaction."

"What's more, there were no injection wounds near the deceased's heart."

"Even if someone tampered with it, it probably wasn't in this way. Wang

Ze straightened up, took a close look at the blood on the cotton swab, and said,"I don't care how the murderer did it.""

"Let us first assume that there is something wrong with the blood"

"There is no toxic reaction, so what if it is decomposed? Hearing this

, Song Ting was stunned:"Decompose?""

"However, the decomposed compounds will turn into ions"

"Hypothetically, how do we determine what the murderer used?

Wang Ze turned around and came to the laboratory table and said,"Then it depends on our luck.""

"According to the periodic table of elements, start with the most likely and check them one by one."

"So, take concentrated hydrochloric acid and dilute it to 100 ml.

Forensic doctor:"Okay."

Wang Ze:"Suppressor solution, add sodium citrate and sodium nitrate."

Forensic doctor:"Okay.""

Watching Wang Ze's testing process, Song Ting fell into deep thought.

She didn't speak and waited quietly.

Although Li Xiangbin and others couldn't understand, they knew they couldn't disturb them at the moment, so they stood there quietly. In the entire forensic room, only He heard the busy sounds of Wang Ze and the forensic doctor.

An hour later,

Wang Ze connected the electrodes.

The values ​​came out.

Song Ting hurriedly stepped forward.

"This conductivity……"

"Fluoride ions?"

She knows.

Wang Ze uses a simple version of ion chromatography.

It can accurately detect the presence of specific ions in a short period of time.

But this requires a prerequisite.

That is, you must know in advance what the ions being detected are. (Watch the explosion. For novels, go to Feilu Novel Network!)

In other words, the first thing Wang Ze detected was fluoride ions

"It seems that our assumption was correct and we were lucky."

Wang Ze took off his gloves and said.

Song Ting was a little surprised by the result.

What surprised her was not the test result.

It was Wang Ze's judgment.

"How do you know it's fluoride?"

Song Ting said.

Wang Ze:"When I was in the police academy, I happened to read a complete encyclopedia of inorganic compounds."

"Can cause a person to suddenly suffer cardiac arrest without any trace"

"At present, there is only one possibility.

At this time, Li Xiangbin couldn't help it anymore and said,"What do you mean?" speak the vernacular"

"Has the cause of death been determined?"

Wang Xiaotong and the others also looked at Wang Ze with curiosity on their faces.

Wang Ze turned around and said:"Hydrogen fluoride"

"Hydrogen fluoride is an inorganic compound"

"Under normal conditions, it is a colorless, poisonous gas with a pungent odor and is very hygroscopic.

Li Xiangbin was stunned:"Gas?""

"what does it mean? Did the deceased inhale poisonous gas before death? Wang Ze shook his head:"

I haven't finished speaking yet.""

"This hydrogen fluoride is easily soluble in water and can be infinitely miscible with water to form hydrofluoric acid."

"The focus is on hydrofluoric acid"

"When hydrofluoric acid enters the human body, it will enter the blood circulation and affect tissues throughout the body."

"especially bones"

"Why bones? Because the toxic effect of hydrofluoric acid is mainly to attack calcium ions and form insoluble calcium fluoride."

"Specific clinical responses, including rapid reduction in serum calcium"

"As a result, it can cause irregular heartbeats and even... cardiac arrest."

After listening to Wang Ze's words, Li Xiangbin and others' expressions changed.

They probably understood.

But the most noticeable thing was the last four words.

Cardiac arrest.

"Was the deceased really poisoned?"

Li Xiangbin was surprised.

Song Ting looked at Wang Ze.

As a senior forensic doctor, she knew that the other party must have something to say.

Wang Ze said:"It's poisoning, but it's not taken orally."

"The murderer obviously knows the toxic principles and effects of hydrofluoric acid very well."

"Taken orally, it does not achieve the effect of being scared to death."

"The safest way is to inject fluoride into the blood near the heart to destroy myocardial fibers."

"Fluoride is not highly toxic. It takes time to react and may not actually cause death."

"But if at this moment, a strong external stimulus is applied to the person being injected, it will cause the person's blood flow to accelerate and impact the ventricle."

"Then, there will be a great probability of scaring people to death."

Li Xiangbin's eyes widened.

He didn't expect that the truth would be like this.

"Wang Ze, you really started the whole case by yourself."

Li Xiangbin spoke subconsciously.

It's up to him to investigate the case.

I didn't expect that even the autopsy would have to be done by him. If you do this, it will make the rest of our criminal investigation team look stupid.

Wang Xiaotong, Bao Qu and the others also have expressions on their faces. She looked at Wang Ze with admiration.

Putting aside the case, she was a bit suspected of destroying the forensic department.

Didn't she see those forensic doctors? She was already confused.

Song Ting was better.

After all, she had never underestimated Wang Ze.

"Eh? No, wait a minute!"

At this moment, Li Xiangbin suddenly remembered something

"Isn't there no injection wound?"

"How did the murderer do it?"

……

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