Chapter 933: Reorganization

While waiting to extract the physical evidence, Captain Lang Heng accompanied Jiang Yuan, together with the criminal police on the scene, to read through the pictures of various physical evidence.

This case involved a lot of physical evidence. Because the investigation of the special case group was not smooth, a lot of physical evidence was extracted. But after reading the pictures of all the physical evidence, Huang Qiangmin felt something and said: "The windows are all sealed, and the main door is the only way to enter and exit. The door lock... can be said to be the key physical evidence."

Huang Qiangmin had been a criminal police detachment leader for so many years, and he also had considerable experience with such homicide cases. He looked at Jiang Yuan with some satisfaction.

Huang Qiangmin guessed that when Jiang Yuan mentioned the door lock specifically when asking to take physical evidence, it was probably just a kind of intuition. Because at that time, Jiang Yuan hadn't read the complete physical evidence materials, and didn't know that the physical evidence in the case not only lacked evidence pointing directly to the killer, but the various physical evidence in the room was also not sufficient to prove—if it wasn't intuition, but a deduction made without reading the complete physical evidence materials, then it was even more excellent.

Huang Qiangmin felt that he really should get a Bole award or something!

"We have also checked the door lock before." Captain Lang Heng knew what Jiang Yuan and the others meant and said: "In fact, it is precisely because we checked the door lock that we focused on Mai Zuqing. The door lock in the victim's house had no typical signs of unlocking, so the killer probably had a key, or it was a door opened by deception."

"Having a key... could it also be a lover?" Huang Qiangmin was not trying to pick a fight, just raising a possibility.

Captain Lang Heng shook his head slightly: "We also inquired about this aspect from the side. The victim Sui Yingxue was very busy with two children. She was a full-time housewife, buying vegetables and cooking every day, and picking up and dropping off children. We talked to her several girlfriends, looked at her WeChat, and checked the software on her mobile phone. Basically, there is no possibility of a lover."

The previous evidence was fine, but checking the mobile phone and finding it clean, it was basically clean.

However, criminal police are always skeptics. Huang Qiangmin asked one more sentence: "Could there be a second mobile phone?"

"We didn't find a second mobile phone." Captain Lang Heng paused and said: "Unless she didn't put the second mobile phone at home, the scene was turned upside down. She didn't have a workplace... Of course, this possibility cannot be ruled out."

Captain Lang Heng didn't say it to death. There are many cases that exceed the thinking state of ordinary people. To put it in a literary way, it is higher than the ordinary level, especially cases involving crimes of passion. Think about it, the killer would be willing to kill for it. This feeling must be extremely rich. Regardless of the outsider's view, the emotions between the people involved are often unconventional.

Whether Sui Yingxue had love debts outside the family, Captain Lang Heng couldn't guarantee for her.

Moreover, social media 10 years ago was not as prosperous as it is today. Everyone still had offline appointments, offline hooking up, and offline adultery.

"The lock is here."

Captain Lang Heng didn't follow Huang Qiangmin's speculation and still pinned his hopes on Jiang Yuan.

The police officers brought several boxes of physical evidence one after another.

Jiang Yuan put on gloves, scanned it through the evidence bag, and finally let everyone make room to check the lock first.

The reception center of the criminal police detachment usually receives 3 special case groups. Even in the restaurant, the waiters skillfully use screens to surround an independent space.

Jiang Yuan couldn't dismantle the lock immediately, so he first used tools to explore it.

First of all, the lock was not treated violently, that is to say, no one pried the door or lock, or sprayed it with a Type 97-2 anti-riot gun. The remaining unlocking methods actually only left two, one is key unlocking, and the other is technical unlocking.

Most technical unlocking is the trick used by locksmiths. Common ones include unlocking with hooks and unlocking with tin foil.

And for the police's trace inspection, there are also professional response means here. The so-called "identification of technical unlocking through typical traces."

Because technical unlocking is not a new invention, or rather, various inventions were played to death decades ago. The lock kings and thief kings of the new era are no longer geniuses of mechanical locks—from this, it can be inferred that existing technical unlocking means will have existing traces.

That is, "typical" and "stable" unlocking traces.

The unlocking method is a classic mode, and the unlocking traces left are naturally typical. The more unlocking training is done, the more fixed the unlocking action is, and the more stable the traces left are.

In the early years, in the era when residential burglary was relatively prosperous, some skilled police trace inspection experts could not only recognize the technical unlocking traces in the lock, but also see the operation traces of some famous thief heads in the local area according to different traces.

It can be said that it is an excellent example of "people fear fame and pigs fear being strong".

Today's technical means are naturally more advanced and complete, but the number of residential cases has decreased, which has caused the development of this kind of technology to lag behind instead.

Jiang Yuan checked it carefully and pondered.

"How to say?" Captain Lang Heng looked at his appearance and became anxious.

"At least it wasn't opened by means like bumping." Jiang Yuan's answer was similar to the trace inspection judgment of the previous special case group.

Captain Lang Heng couldn't help but sigh and said: "Looking at it this way, this road is still impassable."

Jiang Yuan didn't say yes or no, and kept flipping through the removed lock. To say, Jiang Yuan has an LV6-level tool trace identification skill, but it is not very suitable to use here, because what is needed now is to find traces, not to judge who the traces belong to.

LV4 crime scene inspection, and even LV3 vehicle trace identification, can play a certain role here, but they can only provide a little help and cannot solve the problem.

The atmosphere in the room was a bit dull for a while. Huang Qiangmin was anxious and said: "It's a pity that there is no blood at the scene. Otherwise, Jiang Yuan breaking into residential homicide cases through bloodstains is not once or twice."

"Bloodstains can indeed see many things." Captain Lang Heng agreed.

Huang Qiangmin curled his lips, thinking, the many things you said and the many things I said are not the same many.

However, there was no blood in this case, so Jiang Yuan's bloodstain analysis skill had no place to play, and Huang Qiangmin was very regretful. In his mind, among the various technical means mastered by Jiang Yuan, this move was extremely easy to use.

"Do you want to ask Old Liu to come and see?" Huang Qiangmin still knew how to use people. Seeing Jiang Yuan fall into deep thought, the first thing he thought of was Liu Jinghui.

Jiang Yuan didn't object, nodded, and added: "However, if you want to invite Director Liu, you have to make the information more accurate."

"We can find the special case group back then. If it's a case from 10 years ago, the people back then are all still there." Captain Lang Heng said.

Jiang Yuan poked his head into the evidence box and flipped through it, and added: "This case might really need Director Liu to open up ideas. If possible, find a few more members of the special case group back then. Some things in memory are clearer than things in the case file."

"I'll think of a way." Captain Lang Heng nodded.

There is no need for the blessing of unspoken rules. In any unit, the things written into the case file are not completely consistent with everyone's daily experience and memory. At the very least, the things in these case files have to stand up to scrutiny, especially the case files of judicial departments. Even if it is an investigation file, the things inside are also one by one.

However, these case files are all for the court, or rather, for fairness and justice. And to say that solving the case, information that is too conventional is very difficult to find the answer.

"If possible, find a few more members of the former special case group. It should not be easy to break through this case purely from technology." Jiang Yuan only started to contact the case, but with his technical level, seeing nothing at a glance, this case definitely has difficulty.

Captain Lang Heng understood a little and muttered to himself: "Liu Reasoning... is indeed a bit of something. In this way, I will reorganize the special case group according to the 10-year-old personnel list. Although the personnel must have changed, those who are still in the detachment, still in Changle City, I will try my best to mobilize them!" ===== CHAPTER 934 =====