National Forensic Doctor

Team Jiang.

Expert Jiang is here.

At the hideout where the three-man gang was hiding, the criminal policemen from Chiyong City greeted Jiang Yuan one after another.

People are so realistic, especially the police.

When encountering someone who can't do anything, everyone will look at him with a look of disdain. But when meeting someone who can really solve the case, everyone's attitude will naturally soften.

The stronger the crime solver and the stronger the ability, the softer everyone will be.

The detachment leader also quickly came out of the room, smiling like an ugly orange. He extended his hand to Jiang Yuan from a distance and said, "Expert Jiang, this should be the hiding place of the three criminals. Let's try our best to Protect the scene.

Then should I watch the scene first? Jiang Yuan said and started to put on gloves.

OK OK. The detachment leader agreed repeatedly.

Liu Jinghui was also pretending to be wearing gloves, leg gloves, headgear and a mask. The so-called three sets of one mask, and asked if the identity of the criminal was confirmed?

confirmed. This time, thanks to the clues given by two people. The detachment leader readily recognized the helper and said: The main culprit is most likely a man with a height of 1.8 meters. His name is Xu Yang. We found the packaging of some belongings of the Ma family in the room, as well as the remaining ropes and several pieces of blood-stained underwear.

Neither the murder weapon nor the coat were found? The explanatory power of these two is naturally stronger.

The detachment leader shook his head: He hasn't been found in the room yet, so it should have been dealt with.

What is the relationship between Xu Yang and Ma Zhongli?

It doesn't matter. The detachment leader answered decisively.

At this time, Jiang Yuan, Mu Zhiyang and others also looked over.

The detachment leader spread his hands and said a little embarrassedly: So I have to thank you for finding the clues about the safe. From the perspective of interpersonal relationships, these three people have not much contact with Ma Zhongli.

If you want to talk about it, the number two is the knife-wielding man Fan Peng. He is a local and he can always contact Ma Zhongli.

That should be him. Liu Jinghui directly guessed the answer.

The detachment leader who was introducing the case was stunned and asked: Why?

Because he has the strongest tendency to silence. Two of the four members of Ma Zhongli's family had their necks wiped, and the hostess was chopped several times. Of course, it can also be explained that these two people saw his face or said something, but now that there is this level of interpersonal relationship, Fan Peng's suspicion will be greatly increased.

The detachment leader nodded silently. He could actually make the same reasoning, but he didn't dare to be as sure as Liu Jinghui.

Now that we have the facts to solve the case, we can imagine that there must be many unreliable reasoning behind Liu Jinghui's certain reasoning.

In general, Jiang Yuan and Liu Jinghui have proven their strength. No matter what they do, they will have a halo.

Jiang Yuan took the lead in walking into the trio's den.

This is the second floor of an old residential building. The building has a history of more than 30 years. The outside and inside are still made of pure cement, with gray patches and black stains. I don’t know when or what circumstances it was put on.

The corridors are also wrapped in cement and appear a bit cramped and dark due to the piles of various debris.

Jiang Yuan directly asked someone to hold the inspection light and first dealt with the traces on the door.

Upon entering the site, there was only a small house with one bedroom and one living room. As far as the eye could see, everything, including the bed, was dirty and messy.

Not only the kitchen at the entrance, but also the floor leather on the ground were warped everywhere. Needless to say, the rental deposit would definitely not be returned.

Mu Zhiyang and others entered and skillfully turned on the inspection lights, footprint lights, fingerprint lights, etc.

The survey equipment was basically provided by Chiyong City, and their own survey was just waiting in front of them, which was regarded as giving the opportunity of the first round of survey to Jiang Yuan.

This is completely different from the initial treatment.

Jiang Yuan took a rough look at the scene inside, and then started to build a Banqiao while walking, the official name was Quick

Channel pedal.

Chiyong City uses folding metal pedals, which fully fits the name Banqiao. Metal pedals are not as cumbersome as acrylic pedals, but they are strong and durable and can be regarded as very middle-class survey supplies.

In fact, by looking at the criminal police equipment in a place, you can easily see the degree of importance attached to the local economy and criminal police system.

For units like Shanghai Stock Exchange 803, there is no need to discuss cost-effectiveness. Whatever equipment is good or new will be used. If it's worn out, there's no problem in replacing it or giving it away.

Units like Chiyong City, just like middle-class families, must pay attention to cost-effectiveness in everything, and only purchase necessities as much as possible. Necessities are best also durable goods that can be used for a longer period of time, saving replacement and maintenance costs.

As for units like Ningtai County, they are the poor people in the criminal police system. They basically lack everything and are poor in everything. They can just save a little money to buy some urgent and necessary things. Even if they know that something is cost-effective, they can still After looking at the price, I finally chose the cheaper one.

It was only after Jiang Yuan was sold that the economic situation of Ningtai County Bureau improved.

Therefore, even if Huang Qiangmin wanted to keep Jiang Yuan, he could only send him out to solve the case.

Several trace inspectors from Chiyong City followed Jiang Yuan's footsteps and paid attention to his operations.

Similar to forensic doctor Qiu Xing, in Chiyong City's trace examination, the two main characters can also have level 2.

This is also the result of practice. If a prefecture-level city's trace inspection does not have a LV2 trace inspection, the crime detection rate will be broken down in up to two years.

But if it really doesn’t happen, a few young trace investigators should be smarter and finish each case one after another.

In one or two years, it is possible to develop a V2.

Of course, it is only possible. For example, Lao Yan from Ningtai County has been practicing for a lifetime and is still a strong player in V.

Jiang Yuan walked slowly along the Banqiao, looking at it as he walked. When he saw traces on the side, he was not in a hurry to wipe it off, but first put a yellow sign on it.

Jiang Yuan walked all the way to the innermost part of the room, where the bed was, before he started to formally search for traces.

Most of the trace inspection and scanning traces are illuminated with various lights, and then the traces are scanned.

Only in rare cases will the trace inspectors scan the traces inch by inch. For example, Jiang Yuan used this method when he did secondary surveys before.

Of course, most criminals involved in small cases do not receive this level of treatment.

This time, Jiang Yuan was not prepared to scan so carefully.

The main reason is that the identities of the three criminals have been determined, and the value of their fingerprints and footprints is actually not high. The core now is to find some other clues to help with the subsequent pursuit.

The trace inspectors in Chiyong City also slowly spread out, picking up the traces behind Jiang Yuan and collecting them.

Jiang Yuan saw a lot but did little.

LV4's crime scene investigation, working in this indoor environment, already has excessive firepower.

To fully use the LV4 crime scene investigation, it must be at least the level of the previous door-to-door murder case, that is, an outdoor environment, where people are constantly coming and going, and the scene is destroyed more than once, and then there will be no traces. Indistinguishable situation.

For example, the three criminals in the murder case were somewhat cautious at the crime scene, but after returning to this temporary stop, their caution dropped greatly.

In fact, most criminals do. Many people will carefully analyze the situation before committing a crime and devise ways and methods to commit the crime. However, after they actually succeed, they suddenly relax and easily expose their flaws.

1937 Those who can maintain concentration, maintain high-intensity attention for a long time, have self-control, emotional stability, and complete self-designed work perfectly according to the established plan. Even if they commit crimes, they are usually not so low-level. Crimes of property infringement.

Without much decoration, Jiang Yuan could even reconstruct the scene without removing most of the traces.

He looked at it for a long time, at least 20 minutes. After finally entering the bathroom, Jiang Yuan slowly squatted down.

.

How old are the three criminals? Jiang Yuan suddenly asked.

More than 20 years old, No. 1 is the oldest, 28 years old, then 26 and 24 years old.

Liu Jinghui stood watching and asked: Is age related to traces?

The urine in front of the toilet was everywhere.

If it were three young people in their twenties, it would be more than that.

Jiang Yuan pointed around the toilet in the bathroom.

The urine stains were very light, but the distribution area was almost all over the three sides of the front of the toilet. It looked like the urine was scattered during peeing.

The middle-aged Liu Jinghui was very familiar with this scene, and he immediately nodded and said, "Yes, this man is suffering from kidney deficiency at the first sight."

The three criminals were young and strong and could not urinate to such an extent.

Give me the swab. Jiang Yuan squatted down again, and then began to carefully extract the urine marks around the toilet.