Chapter 367: Chasing the Escaper

Captain Jiang.

Expert Jiang is here.

At the hideout of the three-member gang, the criminal police from Chiyong City who met each other greeted Jiang Yuan.

People are so realistic, especially the police.

When they meet someone who is not good enough, everyone will look at him with a look of incompetence, but when they meet someone who can really solve the case, everyone's attitude will naturally soften.

The stronger and more capable the person is at solving the case, the softer everyone will be.

The captain also came out of the room quickly, with a smile on his face like an ugly orange, and shook hands with Jiang Yuan from a distance, saying: Expert Jiang, this should be the hiding place of the three criminals, we will try our best to protect the scene.

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

Okay. The captain agreed repeatedly.

Liu Jinghui also pretended to put on gloves, foot covers, head covers and masks next to him, the so-called three sets and one mask, and asked if the identity of the criminal was confirmed?

Confirmed. This time, it was also thanks to the clues given by the two. The captain readily admitted his help and said: The main culprit is most likely a man of 1.8 meters in height. His name is Xu Yang. We found some packaging of Ma's items in the room, as well as some remaining ropes and a few pieces of underwear with blood on them.

Neither the murder weapon nor the coat was found? These two things are naturally more explanatory.

The captain shook his head: Nothing was found in the room for the time being, so it should have been disposed of.

What is the relationship between this Xu Yang and Ma Zhongli?

It doesn't matter. The captain answered decisively.

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

The captain spread his hands and said a little embarrassedly: So I have to thank you for the clues to the safe. These three people, from the perspective of interpersonal relationships, have little connection with Ma Zhongli.

If I have to say, it is number two, that is, the knife-wielding man Fan Peng. He is a local and can always be connected to Ma Zhongli.

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

The captain, who was introducing the case, was stunned and asked: Why?

Because he has the strongest tendency to silence people. Among the four people in Ma Zhongli's family, two of them had their necks cut, and the hostess was stabbed 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 interpersonal relationship, Fan Peng's suspicion has greatly increased.

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

Now that there is the fact of solving the case as a support, it can be imagined that behind Liu Jinghui's so sure inference, there must be many unreliable inferences that have been excluded.

In general, Jiang Yuan and Liu Jinghui have proved their strength, and what the two do will be glorious.

Jiang Yuan took the lead in walking into the three-person hideout.

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. It is gray and dotted with black stains. I don't know when and under what circumstances something was posted.

The corridor was also covered with cement, and because of the piles of various sundries, it seemed a bit cramped and dim.

Jiang Yuan asked someone to hold the investigation light and first dealt with the marks on the door.

Entering the scene, there was only a small house with one bedroom and one living room. The head could be seen at a glance, including the bed, which was all dirty and messy.

Not only the kitchen at the entrance, but also the floor leather on the ground, were all warped. Needless to say, the deposit for renting the house would definitely not be recovered.

Mu Zhiyang and others entered and skillfully turned on the investigation light, footprint light, fingerprint light, etc.

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

This was completely different from the initial treatment.

Jiang Yuan took a rough look at the scene inside, and then started to build a plank bridge while walking, the official name of which was the fast

channel pedal.

Chiyong City used folding metal pedals, which fully met the name of the plank bridge. Metal pedals are not as fancy as acrylic pedals, but they are durable and can be considered as middle-class investigation supplies.

In fact, looking at the criminal police equipment of a place can tell the degree of attention paid to the local economy and the criminal police system.

For units like Shanghai 803, there is no need to discuss cost-effectiveness. Whatever equipment is good and new is used. If it is not used well, it is okay to replace or give it away.

Units like Chiyong City are like middle-class families. Everything must be cost-effective. Try to buy only necessities. Necessities are preferably durable goods that can be used for a longer time, saving the cost of replacement and maintenance.

As for units like Ningtai County, they are poor families in the criminal police system. Basically, they lack everything and are poor in everything. They collect a little money to buy some urgent and necessary things. Even if they know that a thing has a high cost-effectiveness, they will look at the price and finally choose the cheap one.

It was only after Jiang Yuan went out to sell it 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 investigators from Chiyong City followed Jiang Yuan's footsteps and paid attention to his operations.

Similar to forensic doctor Qiu Xing, the two main trace investigators in Chiyong City can also reach the level of 2.

This is also practiced. If a prefecture-level city's trace investigator does not have a LV2 trace investigator, the crime solving rate will be hit in two years at most.

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 drastically.

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 are able to maintain concentration, maintain high-intensity attention for a long time, have self-control, emotional stability, and perfectly complete their self-designed work 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 traces around the toilet.