civil forensic

Chapter 601 Turning Back (Seeking a Monthly Pass)

"The murderer surrendered himself!"

"The victim's ex-boyfriend, Han Shengyan, claimed to have had a conflict with the victim because of emotional issues. It was around noon today..."

"This Han Shengyan has a little mental problem, and his parents came with a diagnosis report or something."

Chai Tong relayed the news he received, sighed, and put away the phone.

Mental illness kills, you can find logic in the investigation stage, but in politics, it is difficult for you to connect it with logical issues.

It is equivalent to saying that this wave of ebb tide, after all, Chai Tong will follow it.

"Professor Chen, thank you for your hard work." Chai Tong took two steps forward, ready to take Professor Chen back with him.

The murderer has surrendered himself. Although a series of investigation steps are still needed, for Chai Tong, this case is over.

Even if a forensic report is needed, it is Jiang Yuan or Wu Jun's job. Foreign aid like Professor Chen is not qualified to sign on it.

Professor Chen got up, feeling a little regretful, and said to Jiang Yuan, "I was thinking about doing front-line work again, but I still didn't have a good opportunity."

Whether it's a forensic doctor or an anatomy professor, if you want to do front-line work, you have to have dead people to cooperate.It is normal for Professor Chen to not be able to find it.In fact, in a place like Ningtai County, it is quite normal for a murder case to be automatically closed without being solved.

The murderer this time is a typical urban murderer with some mental problems. He escaped after killing passionately, and then returned to surrender under the persuasion of his family...

Although there are no statistical data, such murderers are really ordinary and cannot be more ordinary.

Huang Qiangmin also came over and said to Jiang Yuan: "The site investigation is almost done, let's transport the body back."

Originally, only some physical examinations could be done at the scene, and the specific autopsy report had to be done after all.

The surrounding police officers also stood up with some relief.

Jiang Yuan coughed twice and said, "Wait a minute."

"En?" Huang Qiangmin turned around in doubt.

"Who did the murderer's interrogation? Shouldn't it be done yet?" Jiang Yuan asked.

"It's being interrogated." Seeing that Jiang Yuan had doubts, Huang Qiangmin called back directly.

When the phone was connected, Huang Qiangmin handed it over to Jiang Yuan.

After a few words of greeting, Jiang Yuan asked: "Please confirm the time when the conflict broke out when you ask for details. It is relatively accurate. In addition, it is the number of attacks and whether there is a return."

As far as the first two sentences are considered normal, Jiang Yuan's final return is more attractive.

All the people present were policemen, except for Professor Chen, but everyone basically understood the meaning.

Huang Qiangmin asked: "Is there a secondary injury?"

Upon hearing this, Professor Chen came over directly, re-examined the corpse, and said, "The back of the head has been traumatized multiple times, but it can't be confirmed that it was two injuries."

His academic level in anatomy is super strong, and he is naturally good at forensic science, so he is very confident when speaking.

Jiang Yuan nodded: "From the point of view of the trauma, it is indeed difficult to distinguish. However, I think there is a problem with the time of the blood. In addition, judging from the state of the corpse, the crime was not completed at one time."

"Bloodstains..." Professor Chen's experience is still lacking. If he wants to see the bloodstains and judge when the bloodstains were formed - it's not impossible for him to do it, but it may be necessary to check the data and do some calculations.

After all, this is a very serious murder case. To draw an accurate conclusion, one must consider the environment of the scene comprehensively, including whether there is direct sunlight, the temperature in the restaurant, and so on.

Assuming that the victim died at noon, it would have been six or seven hours at most. If there was a second crime in the middle, the time difference may be one or two hours if judged by blood.

In such a short period of time, whether the air conditioner is turned on in the restaurant, the intensity of the sun, and whether there is wind may all become key factors.Moreover, the situation in different regions in different time dimensions must be different in different seasons.From a scholar's point of view, there are many sets of regression equations...

Of course, it is impossible for Professor Chen to memorize these things. He does dissection, and the gap between blood stain analysis and crocodile analysis is like the difference between crocodiles and snapping turtles.

But if you want to check it now, Professor Chen actually feels that it is quite unnecessary.

He asked directly, "How long do you think the blood stains are?"

"There is an hour and a half." What Jiang Yuan said was full and zero, because for this murder case, this time difference is extremely important.

At the same time, Jiang Yuan is quite confident.

To be honest, for the current case, Jiang Yuan currently has too many means.

A fresh corpse that died at noon, facing LV6's time of death identification, LV4's forensic pathology, and a full set of LV5's bloodstain analysis, crime scene investigation, etc., to put it bluntly, Jiang Yuan knows better than the victim himself How did he die.

And Jiang Yuan's answer completely brought back the emotions of everyone who had just relaxed.

Everyone is familiar with Jiang Yuan, and their confidence in him can be said to be stronger than that of their own wife.

Since Jiang Yuan mentioned the time difference, there are two explanations, one murderer, or two murderers.

One murderer is easy, it is still enough to interrogate the suspect who has surrendered now, but if there are two murderers, how to find the No.2 murderer is no joke.

The investigation box and other things that were just about to be put away, now adjusted the brightness again, and continued to search for fingerprints and footprints.

Jiang Yuan changed his gloves again while observing the blood, while waiting for the results of the interrogation in the bureau.

For suspects who surrender themselves, interrogation should not be a problem. At least, it is no problem to get some basic information.

Not long after, the phone call came back.

Huang Qiangmin handed it directly to Jiang Yuan.

"This Han Shengyan claimed that he did not turn back. Han Shengyan could not tell the specific details of the violent conflict. The problem now is that he was stimulated by this incident, and his mental illness was onset, and his confession may be flawed." Said the policeman on the phone Try to be as concise as possible, and obviously know that there are changes on the scene.

"Where are Han Shengyan's parents? When did they meet Han Shengyan?" Jiang Yuan asked.

"Around 4 o'clock in the afternoon." The policeman in the bureau said.

Calculate the time, just enough to return once.But unless it was a deliberate double return, otherwise, this time is already a bit rushed.

Huang Qiangmin said at this time: "You can use your mobile phone to check the last time you connected to the base station."

This will require a technical investigation application.

Jiang Yuan nodded, and by the way, activated the crime scene reconstruction (temporary +1 and lasts for 535 minutes) skill.

This skill was acquired recently, and its reconstruction effect comes not only from bloodstain analysis, but also from crime scene investigation, and even image enhancement skills.

As far as the scene in front of him is concerned, it is at least equivalent to the bloodstain analysis LV6 level.

"The victim hit the wall first."

Jiang Yuan looked at the scene again, stepped forward again, called a technician to come over to take pictures, and said: "This place should be stained with blood."

Professor Chen also came over to look at it, nodded and said, "Indeed, but it's normal for a few hours to form blood stains."

"I bet there is still blood to be wiped here." After Jiang Yuan spoke, he realized that Professor Chen was a teacher, and hurriedly said: "I mean, judging from the blood-soaked position, the victim should have moved. "

"You made a bold bet." Professor Chen didn't know what his state of mind was like at this time. The students who had only graduated for two years could grow to such an extent that he was even confused about the abilities of his school. .

Jiang Yuan smiled, called two people over, and said, "Take the corpse away."

Then, the four of them worked together to lift the corpse up as lightly as possible.

After the corpse left, there were obvious bloodstains on the floor below.

Of course, there are many explanations for wiping the bloodstains. For example, such bloodstains may be formed when the deceased crawled hard before dying.

However, crawling obviously leaves other marks around, such as bloody handprints, or hard knee or foot marks.

Without these, and the corpse was lying on its back, the blood that was wiped was likely to be passive displacement.

Professor Chen nodded slowly, and said involuntarily, "I really made you bet right."

Jiang Yuan acquiesced, this trick is really difficult.

Director Chai Tongchai, who had been standing outside the circle and watching, suddenly felt very uncomfortable.Jiang Yuan's strength is a bit too strong.Moreover, such a strong subordinate actually leaked through his fingers?
(End of this chapter)