Chapter 287: Current Case

Binhu Spring Greening Landscape Project Construction Site.

Inside the blue color steel plate, an acrylic board bridge was built directly from the entrance into the color steel room.

Seeing this board bridge, Jiang Yuan could see the determination of the Changyang City Criminal Police Detachment.

At ordinary times, the board bridge is built from the entrance to the side of the corpse, and it is also a temporary measure. By the time the evidence collection is almost over, the board bridge is also collected.

In fact, units that can use board bridges are very particular units. What's more, they are also made of transparent acrylic material.

Like the board bridge of the Ningtai County Bureau, it is made of steel plates, not to mention that the quantity is small, and the on-site investigation usually doesn't like to bring it. It's too heavy, and it's troublesome to move. Sometimes, colleagues don't cooperate, and you build it in vain.

If it's a small scene, everyone walks directly into the scene. Only when there is too much blood on the ground will these things be used.

If it were put 10 years ago, there would be no metal board bridges to use, and trampling on the scene was often difficult to avoid.

For the Changyang City Criminal Police Detachment, the situation is actually about the same. Hundreds of board bridges are laid out to form a road. It must be that the leader gave an order, and the on-site investigators would do this. Otherwise, even if they were proposing to their girlfriends, they wouldn't waste their time and energy like this.

Yu Wenshu was standing at the starting point of the board bridge. He is the person in charge of the scene, and his work is quite heavy.

Homicide cold cases have no requirements for the level of the person in charge, but current cases do.

Seeing Jiang Yuan coming, Yu Wenshu, who was commanding, had a relaxed expression, walked two steps with a smile, and greeted: "Is the road easy to walk? No speeding, right?"

"Shouldn't have been photographed." Jiang Yuan said.

Yu Wenshu: "It doesn't matter if you are photographed, come to me later and I'll erase it. En, this is the scene. There are footprints on the ground, and there is blood in the room on the second floor. I immediately thought of you. However, the corpse has already been transported away."

Jiang Yuan nodded as he listened, first looking at the footprints mentioned by Yu Wenshu...

In front of him, there are about thousands of footprints...

This is a construction site. Not only is the ground not hardened, but there is also a large amount of floating soil. If electrostatic equipment is used, it is estimated that more footprints can be locked.

Jiang Yuan had no waves in his heart, and didn't want to start the case from the footprints at all.

Collecting these footprints, 30 cows would be exhausted.

"Let's go see the corpse first." Jiang Yuan thought about finding the murderer's footprints from inside the room, and then looking at the direction of the footprints.

However, if footprints are found inside the room, the footprints outside are not very meaningful, at most pointing to a direction of escape. In other aspects, what is provided inside and outside the room is probably about the same.

Of course, Jiang Yuan doesn't need to explain these words in detail, so he stepped on the board bridge and went to the scene.

Yu Wenshu followed him directly.

Huang Qiangmin has the pressure of the combat power leaderboard, and Yu Wenshu is the same.

The criminal police detachment of a provincial capital city, with a low combat power leaderboard, is almost unacceptable. Not only can it not be low, but it must also strive to be the first.

Shannan Province is a provincial capital suction mode, not only having advantages in economy, culture, education, and policies, but also having requirements in public security, health, etc.

If the relevant person in charge cannot do it, it is actually very simple. The leaders of the brother units in other prefecture-level cities, whoever ranks first, whoever can rank first continuously, may be transferred to the provincial capital to replace you to do this.

Changyang City's state this year is quite good. As far as the criminal police detachment is concerned, it is rare to maintain the record of solving all current homicide cases. But if this case today cannot be solved, Yu Wenshu's pressure will be great.

The corpse is on the second floor of the color steel room.

As the main structure of the color steel room, it is 30 or 40 meters away from the construction site gate. There are six rooms downstairs and six rooms upstairs, but they are relatively large and are in the form of large offices.

The room at the scene is also similar. In the middle is an office desk, in the corner is a large safe. The corpse, looking at the photo, was on the office desk, beaten to death by a blunt instrument on the head. The so-called blood... is a small pool here on the office desk.

Estimated

It was formed slowly, so by the time the murderer left, his feet didn't get stained with blood.

Jiang Yuan looked at Yu Wenshu silently. The blood and footprints mentioned by this person seem a bit unreliable.

"Evidence is slightly weak, but current cases should be easier to solve than cold cases, right?" Yu Wenshu's reasoning still makes sense.

Jiang Yuan asked: "No surveillance, no eyewitnesses?"

Performance, it is definitely not expressionless, it is a situation of forcibly suppressing emotions.

Therefore, most people's alibis, in the process of criminal police questioning, were pierced through. This is also one of the reasons why criminal police need to question face-to-face, rather than questioning by phone.

The false sense of security brought by the phone is exactly what should not be in questioning.

Several migrant workers without special backgrounds, as long as their daughters are not living in dog kennels, should not be able to escape the questioning of x criminal police—these few people on the construction site are definitely key suspects and will not be released after asking two sentences.

Jiang Yuan looked around again and asked: "Didn't find the murder weapon either?"

"No, the murder weapon is guessed to be a stick-like object like a steel bar picked up at the construction site, and it was taken away." Yu Wenshu said helplessly: "We are currently listing the names to see who has disputes with the construction site, and who the previous employees were, but the number of people is a bit large, and the list is not complete. If it is a robbery and murder by an outsider, this case is relatively difficult to solve."

If it is a direct relationship, the case is relatively easy. This kind also belongs to the easy-to-solve robbery case, belonging to the case solved by interpersonal relationship route.

But if it is not, the workload of the case will be relatively large.

If you take the route of interpersonal relationships, then for every additional layer of interpersonal relationship, the workload will have to be multiplied by 10.

Like some cases with internal ghosts, it often takes a long time to solve. It is not that the difficulty of solving is high, but that it takes a long time to find the internal ghost and then check the internal ghost's relationship network.

Jiang Yuan first determined the situation outside the scene, and basically understood Yu Wenshu's thinking.

Now, the best evidence is the scene and the corpse.

As for fingerprints and footprints, it is not that there are none, but that there are too many, and it is impossible to determine which one is useful.

"Then I'll look at the scene first." Jiang Yuan said: "Has this been scanned yet?"

"Only the most basic ones were taken." Yu Wenshu answered.

Jiang Yuan took the core: "Nothing?"

"No." Yu Wenshu shook his head slightly.

In real criminal cases, on-site scanning is not a comprehensive scan of everything. It is also divided into levels.

Normally, it is to scan the obvious ones first, such as bloody handprints, bloody footprints, extracting blood, pulling away the corpse, etc. Secondly, scan the ones with signs. For example, door handles, corpse necks, window frames, stiff toilet paper, etc.

If the above two can scan the murderer's information, the task of the on-site investigation is basically over, and it will not be scanned further.

For example, there may be fingerprints on the victim's sweater, but in the case of bloody handprints, this part of the fingerprints does not need to be tried to be taken.

Even when there is too much information at the scene, some evidence will not be taken at all, such as bed sheets covered with sweat. The on-site investigation that rolls away the entire bed sheet is often the most scolded.

And as far as the current situation is concerned, there are fingerprints and DNA everywhere at the scene, but there is no DNA that is obviously the murderer's.

"I'll call two people over to help." Yu Wenshu felt it was about time, so he went out to call someone and withdrew from the scene himself.

After a while, two police officers with boxes and other equipment came over.

"Brother Jiang, finally met. I am He Guohua, trace inspection in Shuidong District." The first one to enter was He Guohua, who called Jiang Shen and Grandpa Jiang in the group.

He Guohua is also about thirty years old, with a small mustache on his chin, wearing glasses, slightly fat, and his face is very white.

Jiang Yuan was also stunned for a moment before matching the person with He Guohua in the group.

"You can just call me Jiang Yuan." Jiang Yuan was still polite when facing him. He originally wanted to take out a cigarette, but thought he was at the scene, so he didn't...

move.

"This is Xiaobo, Wang Bo, my apprentice." He Guohua introduced the young man who followed and was carrying two boxes.

Wang Bo also looked like a talent. Needless to say, those who could be admitted to the Changyang City Criminal Police Detachment in these years were all a group of guys who wanted to come for dimensionality reduction strikes, but after entering the unit, they were really dimensionality reduction, and they didn't show anything.

Jiang Yuan asked: "You have used an investigation lamp to shine here, right?"

"Shined, and also took some fingerprints, feeling that they are not good." He Guohua answered very directly. Wang Bo looked curiously.

Jiang Yuan said "En" and stood in the middle of the room, entering a state of contemplation.

He is trying to reconstruct the crime scene.

Any on-site investigation actually has the need to reconstruct the crime scene, just not as direct and complete as bloodstain analysis.

And for Jiang Yuan, Lv4 crime scene investigation + Lv5 bloodstain analysis, combined, even if there is little blood at the scene, he can get something useful.

--Proceed to view ===== CHAPTER 288 =====