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If it's formal forensic knowledge, Teacher Mingchuan and the others couldn't have imagined it.

Fang Ze explained: "First of all, hydrogen fluoride is not very toxic and cannot kill people at all. Secondly, very few people know how to use it as I just mentioned."

"Finally, and most importantly, it can be easily detected in the human body unless broken down."

Qiu Hua "But this thing is extremely difficult to decompose. Those who can do it are either top medical experts or chemical lunatics."

Hearing Fang Ze's words, Luo Bixin nodded clearly.

In this case, it is not considered a common chemical substance in homicide, but it can be called rare.

Having said that, Fang Ze stood up and said, "Okay, the autopsy is over."

"It is impossible for these two ions to appear in human blood for no reason. It must be man-made."

"Then this case can be classified as homicide."

Luo Bixin then stood up, nodded and said: "According to what you said, there is no doubt about it."

"Since the time is 24 o'clock, then we should start investigating the people Li Ruicheng met in the last day."

"Ok."

Fang Ze nodded, and said: "Tomorrow, the monitoring investigation results should come out. Cen Xue needs to ask again."

"She is Li Ruicheng's fiancée. She should know better than anyone else where he has gone and who he has met."

"If I'm not wrong, the murderer must be an acquaintance of Li Ruicheng, and there is still a lot of grievances between the two parties."

Luo Bixin agreed.

According to this direction, the scope of the investigation is much smaller, and perhaps the suspect can be locked in a very short period of time, and then arrested.

Thinking of this, Luo Bixin heaved a sigh of relief.

Fortunately, it was Fang Ze who conducted a comprehensive autopsy and determined the real cause of death of the deceased. Otherwise, this case might have turned into an unjust case without a head.

This is the importance of an autopsy. To determine the time and cause of death can directly provide an accurate investigation direction and greatly shorten the time for case detection.

Fang Ze performed a simple liquid nitrogen cold storage on the body, and then left the scene with Luo Bixin.

Although the final result of the autopsy is certain, it is only the first step in solving the case.

I hope tomorrow's investigation of known clues goes well.

By now, Fang Ze was indeed a little tired, so they went back to their rooms to recharge their batteries.

The night is very quiet.

If it weren't for the dazzling police lights flashing nearby, nothing seemed to have happened

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Chapter 95 The Suspect Under Surveillance [Third Update]

8:08 am the next day.

Outside Fang Ze's room.

There is a group of people standing here, besides the police, Li Ruisi also came.

As the deceased's younger brother, he must always pay attention to the direction of the case.

"Team Luo, what's the situation?"

Ding Chunqiu looked at Luo Bixin who was sitting at Fang Ze's door, and said.

Luo Bixin said: "He was too tired last night, he was busy until four o'clock in the morning, let him sleep a little longer."

She seemed to have forgotten that she was with her all the time and didn't sleep well.

"Alright."

Ding Chunqiu nodded, they didn't check too many things last night, they didn't sleep too late, only Fang Ze went to the scene by himself,,, conducted a comprehensive autopsy.

Just don't know what the result will be.

Thinking about it, there shouldn't be much progress. After all, it's very difficult to artificially manipulate things like cardiac arrest without any trace.

"Hey, thank you for your hard work."

Li Rui "940"

Think about opening your mouth.

After one night, his mood improved a lot, but the sadness in his expression could not dissipate in a day or two.

"The responsibility lies."

Luo Bixin said something on behalf of Fang Ze.

Li Ruisi nodded and didn't say much, just keep this kind of thing in mind.

A true friend should not only confide in one's heart to one's friend and help selflessly, but also accept kindness from one's friend frankly. This is mutual.

Everyone waited at the door without disturbing or complaining.

As the backbone, Fang Ze's state is very important. If lack of sleep affects the investigation, the loss outweighs the gain.

In the Penghai criminal police team that Fang Ze joined, everyone regards themselves as executors, and they just need to follow Fang Ze's footsteps.

Because no one can keep up with Fang Ze's investigation speed.

"Did you get anything new last night?"

Although he didn't hold out hope, Ding Chunqiu still asked.

When this question was mentioned, Li Ruisi listened attentively.

He didn't know if this was a confidential case, but since no one asked him to avoid suspicion, of course Li Ruisi would not leave voluntarily.

Luo Bixin glanced at Li Ruisi, pondered for a while, and said, "Yes, Fang Ze did a comprehensive autopsy on the deceased, ruled out all possibilities, and finally confirmed that this case is homicide."

She spoke very calmly, after all, she already knew about it last night.

But the others, after hearing what Luo Bixin said.

The complexion changed in vain.

Especially Li Ruisi had the strongest reaction. He stepped forward quickly, stared at Luo Bixin and said in a deep voice, "Sister Bixin, what did you just say! Are you sure!"

Just last night, he had already called friends in the relevant professions, and the answer he got was: It is impossible for someone to cause cardiac arrest without a trace, as long as an experienced forensic doctor can identify it.

Three people have almost the same answer.

This also made Li Ruisi quite agitated.

Maybe my brother really died in an accident.

But now Luo Bixin's words made his heart tremble again. Luo Bixin nodded and said, "I'm sure, hydrogen hydride residues were found in your brother's blood, which directly caused the cardiac arrest."

Hearing these words, Li Ruisi's face immediately became a little gloomy.

That is to say, someone killed his brother by using what Luo Bixin said.

"Son of a bitch!"

Li Ruisi gritted his teeth and cursed, because of his extreme anger, his face turned rosy.

"Let me know who it is, I must kill him alive!!"

Luo Bixin's expression remained unchanged. She had heard such angry words too many times.

Ding Chunqiu and the others looked at each other in surprise.

They obviously did not expect that the original

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Such a big turning point will appear in the almost definite result.

In other words, last night's case was a homicide case, so the direction of future investigations will be quite different from last night's.

At this time, Ming Chuan, who was about to pack up his things and leave, walked over and said, "Captain Luo, did the deceased have hydrogen fluoride in his body? Why didn't we find it yesterday?"

Although the last autopsy was only a preliminary examination, it also included detection of abnormal substances.

in spite of

Whether it was internal organs, oral cavity or blood, he didn't find any abnormality.

Then where did the hydrogen fluoride come from? Luo Bixin said: "It's not hydrogen fluoride, it's fluoride ions and hydrogen ions. Fang Ze determined it through reagent reactions."

"Ion"

Ming Chuan stared at him, then frowned and said, "How could hydrogen fluoride be an extremely stable binary compound, and it is impossible for ordinary people to decompose it unless"

Speaking of this, Ming Chuan seemed to have thought of something, and did not continue, saying: "If this is the case, then the murderer is not an ordinary person."

"Ok."

Luo Bixin nodded, and said, "Fang Ze also said the same."

"sharp"

Ming Chuan took a deep breath and said, "The team actually thought of hydrogen fluoride, and also thought of detecting ions. It can be said that the most impossible possibility has become a reality."

"If you don't work as a forensic doctor, it's a shame."

As soon as these words came out, Luo Bixin looked up at him.

Ding Chunqiu and the others also set their sights on Ming Chuan.

Seeing everyone staring at him, Ming Chuan was stunned for a moment, and then smiled awkwardly: "Of course, if the Fang team doesn't work as a criminal police officer, it's also a shame."

Then everyone looked back.

Compared with forensic testing, the investigation process is the focus of the investigation.

After all, there are very few high-IQ criminals who understand medical science and chemical engineering.

Unfortunately, I'm afraid I actually met one this time.

After learning that there was a major breakthrough in this case, everyone raised their spirits and prepared for the upcoming work.

While chatting, they waited for Fang Ze to come out.

When it was almost nine o'clock, there was movement in the room and the sound of running water. After Fang Ze briefly washed up, he pushed open the door.

Seeing a large group of people gathered at his door, Fang Ze was taken aback for a moment, and then said embarrassedly: "Sorry, sorry, I overslept."

"What are you talking about, you can only work if you have a good spirit."

Ding Chunqiu smiled and said.

Fang Ze smiled and didn't say much.

He glanced at Luo's refill and asked, "I know everything."

"Ok."

Ding Chunqiu said: "We all know, Team Luo has already told us the result."

"it is good."

0.

Fang Zetou, "Since it is confirmed that it is a murder, then we have to keep our spirits up. The criminal this time is not a simple person. How is the monitoring and investigation going?"

Speaking of monitoring, Pan Pu said: "Fang team, we have already checked. The monitoring was not blocked. At 11:40 last night, someone entered the room of the deceased."

"I've seen the surveillance, this guy must have done it."

Ding Chunqiu said.

"Ok"

This is an unexpected gain.

"Can you see the face clearly?"

Fang Ze asked.

Pan Pu shook his head, and said: "I can't see clearly, let alone his appearance, I don't know if he is a man or a woman, the suspect wrapped himself very tightly."

Hearing this, Fang Ze pondered.