Chapter 358: Pursuit

"Jiang Dui."

"Expert Jiang is here."

At the hideout of the three-person gang, the Chiyong City criminal police officers who met him greeted Jiang Yuan one after another.

People are just that realistic, especially police.

When they meet someone who isn't capable, everyone will look at them with "not capable" eyes, while when they meet someone who is truly capable of solving cases, everyone's attitude and posture naturally soften.

The stronger the case-solving ability, the harder the capability, the softer everyone becomes.

The detachment leader also quickly came out of the room, his face smiling like an ugly orange, reaching out to shake hands with Jiang Yuan from afar, saying: "Expert Jiang, this should be the hideout of the three perpetrators. We have protected the scene as much as possible..."

"Then shall I look at the scene first?" Jiang Yuan said, starting to put on gloves.

"Good, good, good." The detachment leader agreed repeatedly.

Liu Jinghui on the side also put on gloves, foot covers, head covers, and masks in a pretentious manner, the so-called three sets and one cover, and asked: "Have the identities of the perpetrators been confirmed?"

"Confirmed. This time, it's also thanks to the clues given by the two of you." The detachment leader readily accepted the help and added: "The main perpetrator is likely a man 1.8 meters tall. His name is Xu Yang. We found some packaging of items from the Ma family in the room, as well as leftover ropes, and several pieces of blood-stained underwear."

"The murder weapon and coat weren't found?" The explanatory power of these two is naturally stronger.

The detachment leader shook his head: "Not found in the room for the time being. They should have been disposed of."

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

"No relationship." The detachment leader answered very decisively.

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

The detachment leader spread his hands and said a bit embarrassedly: "So I have to thank you for the clue about the safe. These three people, screened from the perspective of interpersonal relationships, don't have much connection with Ma Zhongli. If I have to say, it's the second one, the man holding the knife, Fan Peng. He is a local, and after going around in circles, he can always be connected to Ma Zhongli..."

"Then it should be him." Liu Jinghui directly guessed the answer.

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

"Because his tendency to silence witnesses is the strongest. Among the four people in Ma Zhongli's family, two had their throats slit, and the hostess was hacked several times. Of course, it can also be explained that these two saw his face or said something, but now with this layer of interpersonal relationship, Fan Peng's suspicion has greatly increased."

The detachment leader nodded silently. He could also make the same inference, but he didn't dare to be as certain as Liu Jinghui.

Now with the facts of the case as support, one can imagine that behind Liu Jinghui's certain inference, many unreliable inferences must have been excluded.

In general, Jiang Yuan and Liu Jinghui had already proven their strength, so whatever the two did, they had a halo.

Jiang Yuan walked into the three-person hideout first.

This was a room on the second floor of an old residential building. The building must have a history of over 30 years. The outside was still pure cement, a gray piece, with black stains dotted on it, and no one knew what was stuck on it when and under what circumstances.

The corridor was also wrapped in various cements, and because of the various sundries piled up, it looked a bit cramped and dim.

Jiang Yuan directly asked someone to hold the investigation light and first processed the traces on the door.

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

Not only the kitchen at the entrance, but also the floor leather on the ground, all parts were curled up. Needless to say, the deposit for renting the house definitely couldn't be recovered.

Mu Zhiyang and others entered, 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 only waiting nearby, which was considered giving the first round of investigation opportunities to Jiang Yuan.

This was completely different from the initial treatment.

Jiang Yuan looked at the scene inside roughly, and then began to lay down the board bridge while walking, the official name is "fast channel pedal".

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

In fact, looking at the investigation equipment of a place's criminal police, one can see the economic situation and the degree of importance attached to the criminal police system. For units like Shanghai 803, there is no need to discuss cost-effectiveness. Whatever equipment is good, whatever equipment is new, they use it. If it's not used well, replacing or giving it away is no problem.

For units like Chiyong City, it's like a middle-class family. Everything has to be particular about cost-effectiveness. As much as possible, only buy necessities. Necessities should also be durable, so they can be used for a longer time, saving the cost of replacement and maintenance.

As for units like Ningtai County, they are the poor families in the criminal police system. Basically, everything is lacking, everything is poor. They scrape together a little money to buy some urgent and necessary things, even if they know the cost-effectiveness of a certain thing is high, looking at the price, they still choose the cheaper one.

It was only after Jiang Yuan went out to sell that the economic situation of the Ningtai County Bureau improved. Therefore, no matter how much Huang Qiangmin wanted to keep Jiang Yuan, he could only send him out to solve cases.

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

Similar to forensic doctor Qiu Xing, among Chiyong City's trace investigators, the main two can also have lv2 level. This is also practiced. If a prefecture-level city's trace investigation doesn't have a lv2 trace investigator, the case-solving rate will be pierced in at most two years.

But if there really isn't one, if a few young trace investigators are smart, after doing case after case, after a year or two of work, it's possible to practice a lv2. Of course, it's just possible. Like Old Yan in Ningtai County, he practiced for a lifetime and is still a strong lv1.

Jiang Yuan walked slowly along the board bridge, looking as he walked. When there were traces beside him, he didn't rush to wipe them, but first put a yellow indicator sign down.

Jiang Yuan walked all the way to the innermost part of the room, which was the bed position, before starting to formally look for traces.

Most trace investigators scan for traces by shining various lights, and then scan for traces after finding them.

Only in very few cases will trace investigators scan for traces inch by inch. Like when Jiang Yuan did the second investigation before, he used this method.

Of course, most small cases' criminals don't get this level of treatment.

This time, Jiang Yuan didn't intend to scan so meticulously. The main reason is that the identities of the three perpetrators have been determined, so 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.

Chiyong City's trace investigators also slowly scattered, collecting traces behind Jiang Yuan.

Jiang Yuan looked a lot and did little.

lv4 crime scene investigation, doing things in this indoor environment, already belongs to the level of excessive firepower.

To use lv4 crime scene investigation to the full, it must be at the level of the previous "stabbing case at the door", that is, an outdoor environment, people coming and going constantly, the scene being destroyed more than once, and then there will be situations where traces cannot be collected or distinguished.

Like the three perpetrators of this extermination case, they were cautious at the crime scene, but after returning to this temporary foothold, their caution dropped significantly.

In fact, most criminals are like this. Many people will carefully analyze the situation before committing a crime, will design the way and method of committing the crime, but after truly succeeding, they relax all of a sudden, and instead, it's easy to reveal flaws.

People who can maintain concentration, maintain high-intensity attention for a long time, self-control, stable emotions, and perfectly complete self-designed work according to a predetermined plan, even if they commit a crime, usually won't be such low-level property crimes.

Without much concealment, Jiang Yuan doesn't need to take most of the traces, and can even reconstruct the scene.

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

"How old are the three perpetrators?" Jiang Yuan suddenly asked.

"20-something. The first one is the oldest, 28 years old, then 26 years old, 24 years old." Liu Jinghui stood by and watched, and asked: "Is age related to traces?"

"The urine in front of the toilet is scattered everywhere. If it were three young people in their 20s, it shouldn't be like this, right?" Jiang Yuan pointed to the area around the toilet in the bathroom.

Very shallow urine stains, but the area covered almost covers the three sides in front of the toilet. It looks like the urine scattered when urinating.

Middle-aged Liu Jinghui is very familiar with this scene and immediately nodded: "Indeed, this person looks like his kidneys are too weak. Three young and strong perpetrators can't urinate this range."

"Give me a cotton swab." Jiang Yuan squatted in a new posture and began to extract the urine stains around the toilet carefully. ===== CHAPTER 359 =====