civil forensic

Chapter 1244 Electrician's Knife

Chapter 1244 Electrician's Knife

When Li Guangnian saw Shen Changfeng again, he saw Shen Changfeng lying on the sofa playing with his mobile phone in an unpresentable manner, looking like an old criminal policeman who had been working for more than five years.

This image is not acceptable!

Li Guangnian frowned and coughed softly: "What's going on?"

"Boss!" Shen Changfeng threw his phone away and rushed over.

Li Guangnian quickly blocked him with his hands, then stared at Shen Changfeng for a few seconds with the eyes of an experienced criminal policeman, and asked seriously: "What happened? Did you get punished?"

"No." Shen Changfeng's excitement was blocked by the captain's three-dimensional arm. The two-dimensional arm cannot contain emotions, so it is quite suitable to be a criminal policeman.

"Director Jiang... bullied you?" Some scenes that were not suitable to talk about at this moment flashed through Li Guangnian's mind.

Shen Changfeng recalled what he had seen and heard during the past period of time and sighed: "No, I just followed Director Jiang to adjust the 3D printer, and I'm a little tired."

"3D printer, Director Jiang is also playing with this?" Li Guangnian was surprised.

Shen Changfeng: "Boss, is it possible that the 3D printer was not designed to print figures?"

"Did you use a 3D printer to print the figures?" The criminal police captain, who was born in the s, did not respond and just kept asking questions.

"No, we used a 3D printer to print the murder weapon, a possible murder weapon." Shen Changfeng said.

"Can you print? Do you know what the murder weapon is?" Li Guangnian finally grasped the key point.

Shen Changfeng: "Director Jiang thinks it's an electrician's knife."

Li Guangnian's eyes instantly turned to Akagi Takenori: "Amazing, he actually found it? As for the electrician's knife, it means his profession is related to electrical engineering, or there must be someone in the family who is in the related industry..."

Li Guangnian took out his cell phone as he spoke.

Shen Changfeng looked at his movements and said coldly, "Boss, do you know RealityCapture?"

"What?" Li Guangnian looked stunned.

"I asked the same question at that time, and had the same expression." Shen Changfeng shook his head slightly: "RealityCapture is a 3D reconstruction software used to generate the shape of the wound and nearby tissues. It also uses the Poisson surface reconstruction algorithm to generate a smooth surface..."

"What?"

"That's it!" Shen Changfeng nodded in agreement, and then said: "There is also ANSYS, which is a finite element analysis software. It is used to import models and assign values ​​to material properties. For example, muscles are 0.5 to 1 MPa..."

Li Guangnian understood, and patted Shen Changfeng on the back gently, saying: "You know, at the beginning of many anime male protagonists, within a few chapters, they will encounter a boss who can cover the sky with one hand. The boss can smash the tower that the male protagonist has tried his best to destroy with a light palm, but it won't be long before the male protagonist will stand in front of the boss..."

'You said it, boss.' Shen Changfeng was very moved when he heard such a story for the first time. Later, when he learned that the captain was wholesaler of such small stories, he calmed down.

This was obviously not the first time Li Guangnian encountered such a situation. He coughed twice and said, "Then let me tell you another way..."

After finishing his speech, Li Guangnian did not wait for Shen Changfeng to respond, and said: "Go see Director Jiang, I will talk to my family. The electrician's knife is very valuable as evidence!"

……

With the clues, not only Li Guangnian's First Brigade, but also the Criminal Police Brigade of Donghua City was mobilized, led by the detachment commander himself, and began to search for various evidences.

For Donghua City, this rainy night murder case itself is of great importance. After passing through the hands of previous experts and now falling into Jiang Yuan's hands, everyone understands that this is basically the last chance to solve the case head-on.

If Jiang Yuan is still involved and still can't solve the case, then it's unlikely that any other experts will be invited to participate in the investigation. It can even be said that if other experts are invited to participate in the investigation of the case, it would be good if they don't think it's a trap.

Normal criminal investigation experts, unless they owe you a life, will most likely not intervene in this case. Unless some extremely important evidence appears in the future, such as the murder weapon directly popping out, or the suspect in a case directly reports or even confesses...

It's like a test paper. If you see the top 10 students in the grade do it but fail, is it necessary for you to do it? This is not a free attempt. If you fail again, you will not only be ridiculed, but also lose substantial benefits...

Of course, these are all things for the future. For the Donghua City Criminal Police Detachment, they are now in the process of doing their exams, so naturally they have to go all out.

The identity of the victim was clear. He was a salesperson in a small trading company. He did not have many opportunities to come into contact with electrician's knives in his job. The criminal police team then turned their attention to his life and relatives and friends.

At this time, the company's manager Zhang Zhanjun, who had been listed as a suspect, was put under the microscope.

"The suspect, Zhang Zhanjun, is a 46-year-old male with a bachelor's degree. He is the boss of the victim Qin Rui's company. He graduated with a degree in electrical engineering and automation and worked as an electrician." Li Guangnian immediately came to find Jiang Yuan after hearing the news and said, "He was the last person among Qin Rui's colleagues to see Qin Rui. We have taken his statement."

Regardless of anything else, now there is an entry about having worked as an electrician, and everyone is facing a serious enemy.

Jiang Yuan asked: "How did you clear the suspicion?"

"Qin Rui's time of death is uncertain. He may have died a few days after he disappeared. Zhang Zhanjun has an alibi. In addition, Qin Rui and Zhang Zhanjun did not socialize much, at least according to their colleagues." Li Guangnian paused, took out his notebook and looked at it, then said, "We also asked the technical detective and the image detective to check the cell phone and surveillance. Qin Rui should have returned to the rental house that day and left later."

Li Guangnian paused for a moment and said, "However, if we want to look at Qin Rui and Zhang Zhanjun together, it was not necessary for Qin Rui to stay and work overtime that day. On the last day, the only people working overtime in the company were the boss Zhang Zhanjun and the salesperson Qin Rui, which didn't feel right."

Liu Jinghui also scanned the relevant information at this time, and then said: "Zhang Zhanjun opened his company in Beijing. His work focus in the past two or three years has been in Beijing."

"Bring him here and ask first." Jiang Yuan no longer had any doubts.

Li Guangnian was shocked instead: "Shouldn't we investigate outside first? The suspect probably doesn't know that we have investigated him. The boss of a company in Beijing might be able to contact someone. Wouldn't it be better to arrest him after we have some evidence?"

He had his case here and he had to give his opinion.

"The suspect himself is the best evidence." Jiang Yuan said affirmatively: "Bring him over to leave footprints and fingerprints, collect DNA, and measure gait. Run the surveillance videos around the next two cases to see if he has appeared nearby."

Liu Jinghui nodded in agreement: "He may be the last eyewitness, and he has experience as an electrician. In addition, he has money. He appeared in Donghua City and Beijing successively. His suspicion is very high. I suggest a surprise inspection of his real estate and company assets!"