Chapter 308

A high-definition microscope was used to take a picture of the model of the scene of the corpse crushing case, which was projected on the wall.

Chu Jiuge gets up, picks up a towel and hangs it on the lock outside the door.

Close the door again, so you don't have to worry about the nurses.

Song Wenlan remembers the nurse's words not long ago and blushes.

Fang Tang embarrassed: "small nine, how do you know... This code?"

"When I went out to pay, I didn't do anything." Chu Jiuge said lightly: "the basic information of Baimaoling lunatic asylum has been obtained. I said that I know how to play the game like the back of my hand!"

The three looked at the high-definition photos on the white wall.

1080P At resolution, the millimeter scale model is enlarged to the whole wall.

The precision is still insufficient, but because it is a dynamic film shot at 60 frames per second, it can get more details than the resolution through multi-layer superposition and video processing.

The scene of the crime, the second floor of the spring bath, chess and mahjong room!

The whole scene was bloody, with dried up blood and human tissue everywhere.

But the face of the deceased was intact, the back of the skull was completely opened, and the whole brain was removed.

"Looking back, the victim's full name is Wang Donghai. He graduated from accounting computerization with a bachelor's degree and has rich experience in accounting. His parents came from other places to work in Puzhen. Wang Donghai died in a car accident the year he graduated. According to the investigation, he still has many relatives in his hometown of Changbai in Guandong, but he has no contact with them any more. "

"Wang Donghai was very familiar with electronic currencies such as special currency when he was a university student. In addition, he has a girlfriend, who has lost contact. According to the investigation, two months ago, his girlfriend worked as a waiter in a tea house. "

"Now we don't know which teahouse Wang Donghai's girlfriend works in, but we know that the underground teahouses in Puzhen are all camouflaged casinos, and they are all controlled by an organization called Changbai society!"

Fang Tang said softly, Chu Jiuge has recorded the key points, made a PPT, projected on the wall.

Three people look at the collected information of the dead Wang Donghai.

Fang Tang went over and smeared Wang Donghai's information on the ppt: "except for his name and suspicious girlfriend, I have reason to suspect that Wang Donghai's other backgrounds are fake!"

"Why?" Song Wenlan frowned: "these materials are all visited by our criminal investigators!"

Fang Tang continued to daub: "Wang Donghai pretends to be a member of Changbai Society for the convenience of joining Changbai society, including accounting major and work experience... Changbai society must lack professional financial personnel, so he can easily gain the trust of the gang boss as a disguised Changbai fellow."

"Is it all your reasoning?" Chu Jiuge asked.

Fang Tang pointed to his head: "I have more case information here than the police! Trust my judgment. "

Song Wenlan is silent for a moment: "suppose your inference is correct, how should we investigate next?"

Fang Tang touched his chin: "then we have to consider the problem of criminal investigation methods."

Criminal investigation is always based on the result of the hero. To catch the murderer and bring him to justice is the result. In order to achieve this result, there are various ways to achieve it.

This is the method of criminal investigation. The early Chinese criminal investigation used the backward theory. Because the foundation of criminal investigation in the Republic of China was based on the army, the criminal police at that time still had the problem of simple and rough.

After that, two schools of empiricism and technicism gradually emerged.

Old criminal investigators like to rely on experience to lead the way of solving cases. Some very powerful old comrades can probably infer whether this case is a case of love killing, money killing, hate killing or impulsive killing by looking at the scene of the crime

With this kind of experience similar to the sixth sense, we can quickly locate the general outline of the murderer, and then investigate through interviews, It's easy to find clues. As for the material evidence and traces on the scene of authentication, because of technical problems, they are far behind this kind of experience.

And the young generation of criminal police, more believe in technology!

For example, the first criminal investigation office of the Ministry of public security, where song Wenlan works, has the ability to build criminal data models.

Taking the corpse as the center and the scene investigation as the basis, this paper interprets the traces and clues of the crime scene, then analyzes the case, determines the scope and direction of investigation, and then considers what kind of strategy to use.

For example, link the material evidence to deduce the killer.

Cooperate with the investigation and interview to determine the motive of the murderer. Collect the evidence and make the final decision.

However, the case Fang Tang is facing now is different from the normal case.Behind the scenes, the murderer is just a chess piece, manipulated by the artist, laying various traps.

Whether they are experienced or technical, they seem to be caught in the face of such a complicated and complicated case.

"Causality!" Fang Tang said softly: "in order to complete the game and solve this case, we must find the causal relationship between the murderer and the dead!"

"You mean starting with motive?"

"It's not only the motive, but also the nature of this case. Ordinary homicide cases are nothing more than those kinds: impulsive homicide, hate killing, for love, for money, for political purposes..."

"There are also psychopathic murders, most of which are in the mode of serial murders..." Song Wenlan added.

Chu Jiuge came silently and wrote down two options of "religious killing" and "ritual killing" on ppt.

"Let's do the elimination first!"

Chu Jiuge thought for a moment: "political purpose exclusion, impulse killing exclusion!"

Song Wenlan shook his head: "it's too hard to rule out love killing, money killing, hatred killing, religious ceremony, psychosis, all of them are possible."

Wang Donghai, the victim of the eight treasures case, was completely removed from his brain.

It looks more like "psychopath" or "ritual killer"!

Fang Tang frowned and thought for a while: "Wenlan, I remember at the scene of Puzhen female corpse case, you quarreled with Captain chang..."

Song Wenlan nodded: "I merged the Puzhen female corpse case and the Babao corpse case into the wind case. Chang Beihai disagreed!"

"Why merge? You seem to have said that it's one of your conjectures? "

Song Wenlan pondered: "because the hands of the female corpse in Puzhen have been cut off, I assume that the target of the murderer is those hands! So I made this conjecture

Chu Jiuge interjected: "although the two cases of the dead one was taken brain, one was taken hands, but also can't be so direct merger?"

Song Wenlan snorted: "of course, it won't be so reckless. My guess is supported by clues."

She closed her eyes and retrieved the data from her memory again.

Then she said, "when I was on my way to take over this case, I got a clue from Wujiaochang prison."

Wujiaochang prison in Mordor Yangpu

"In Wujiaochang, there is an old criminal who has been sentenced for life. In order to reduce his sentence, he reported a violent criminal in the same prison, saying that the criminal planned to kill five people!"

"That violent criminal is an old gangster in Puzhen, who was also arrested in Puzhen. After receiving this report, the prison guards of Wujiaochang attached great importance to it and put it on trial that night. It turned out that it was an oolong."

Song Wenlan coughed: "according to the confession of the violent criminal, he just came out of" laowozi "in the early morning before he was arrested... Laowozi means underground gambling house... When he got out of the underground gambling house, he overheard a drunk muttering outside the teahouse."

"When the violent prisoner heard that the drunk said that he would kill five people in order to get something together, and he had to get his brain, hands, feet, body and eyes from the five people... The violent prisoner remembered very clearly, and when he arrived at the prison, he boasted in order to show off, saying that he would plan to kill five people..."

Fang Tang stares at this woman, Clench one's teeth: "so important clue, why do you say until now?"

His eyes made song Wenlan cold.

The woman stubbornly bit her nails again