Doing on-site investigation is Jiang Yuan's expertise.

As a Level 4 forensic, he can find something as long as it's not a professional criminal.

However, when Jiang Yuan entered, the first thing he noticed was the bloodstains.

His bloodstain analysis is at Level 5, equivalent to a short-distance runner who can run 100 meters in 10 seconds. From the moment he starts, everything is optimized.

Although he didn't do a detailed identification or a thorough analysis, based on what Jiang Yuan has seen so far, he has already drawn many conclusions.

For example, Jiang Yuan noticed that the perpetrator's actions were particularly forceful from the beginning to the end of the crime.

With such forceful actions, a regular on-site investigator should be able to find some clues.

Especially the victim, facing intense attacks, even a slight resistance could leave behind some physical evidence related to the perpetrator.

However, there was none.

In Jiang Yuan's understanding, this situation should indicate that the perpetrator made relatively thorough preparations. They wore gloves, protected their neck, wrapped their hair, and so on.

The first thing that came to Jiang Yuan's mind was a perpetrator wearing a jumpsuit, covering everything including their head, holding a sharp weapon, forcing the victim to retreat step by step, then stabbing... pursuing... and delivering the final blow...

During this process, the victim had very little chance to fight back. Even if they scratched the perpetrator's body, it was deflected by the smooth clothing. They couldn't even tear off a piece of fabric.

But... why would someone who meticulously prepared such an elaborate set of equipment choose such an outdated method of killing with a knife?

Wouldn't it be simpler to just set the place on fire?

And it's 3 o'clock in the morning.

At this time, normal people should be sleeping. If the perpetrator had the level of familiarity to have a key, they should have attacked at night, targeting the neck. Although there would still be a significant amount of bleeding, it wouldn't be enough to spray all over the room.

From the large amount of bloodstains now, it can be seen that the perpetrator's preparations were not sufficient.

The more Jiang Yuan looked, the more contradictions he felt.

Hou Lejia urged at this time, "Forensic Jiang, should I assign you some assistants or how should we proceed?"

At this moment, the different working styles of the criminal investigators became apparent.

Hou Lejia was more of a manager type. He had his own ideas and stubbornness when it came to investigation direction and criminal investigation content. As for forensic or criminal science personnel, he saw them purely as tools and didn't listen to their opinions. He only wanted to get the answers he directed.

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Most old-school criminal investigators were like this.

Some criminal investigators were taught to be people in the early 2000s. At that time, the DNA laboratory was like a magic lamp, spitting out answers to accumulated cases every few days. They didn't need much criminal investigation thinking, inspiration, staying up late, or running around. The initial DNA technology made things easy, like eating a hot pot with old oil.

However, even in the face of impressive technology, there were still stubborn conservatives.

Hou Lejia needed the technology, but he never liked giving the power to direct to the technicians.

Correspondingly, he didn't care much about the technicians' mistakes either. As long as they followed his requirements, if they made a mistake, he could remain calm.

It was probably because of this personality that the carefree forensic Ye and the Level 0.6 starting point of the on-site investigator could live a fulfilling life.

However, Jiang Yuan didn't like this kind of model.

Or rather, Jiang Yuan, who had mastered Level 5 bloodstain analysis, didn't like being so obedient in a room full of blood.

Hou Xiaoyong was too weak, and his orders didn't sound as good to Jiang Yuan.

Jiang Yuan didn't argue with him and thought for a moment before turning around and saying, "Let's eat something first, I'm starving. If we start the investigation now, it will take at least five to six hours to finish..."

"Oh, look at my forgetfulness." Hou Lejia slapped his forehead and laughed, "What do you want to eat? The last time we had pork intestines and chicken stomach? That might take a while, I don't know if they're open now..."

"Noodle soup with snails." Jiang Yuan interrupted Captain Hou's monologue and said, "Let's have something with a strong smell to cover up the odor."

"Uh, should we eat it here?"

"Definitely not at the crime scene. Cook it and eat it at the entrance." Jiang Yuan said.

"Alright. Um... Hou Xiaoyong, go get a bowl of noodle soup with snails. Is one serving enough?"

"One serving is enough. It's hard to work when you're too full." Jiang Yuan paused and instructed Hou Xiaoyong again, "Add a sausage and two eggs."

While waiting for the noodles to cook, Jiang Yuan took out a notebook and started sketching the crime scene.

Hou Lejia didn't understand, and he couldn't force Jiang Yuan, who hadn't eaten, to clean the floor right away. He could only wait patiently on the side.

After a while, a smell different from the stench of a corpse wafted over."Forensic Jiang, would you like to come out for some snail rice noodle?" Hou Xiaoyong poked his head in.

"Give me a moment." Jiang Yuan made a few more gestures, stepped out to take a look, then returned, saying, "Captain Hou, I have an idea I'd like to discuss with you."

Hou Lejia was taken aback, "Go ahead."

"I've just taken a rough look at the crime scene and did a simple reconstruction. Shall I explain?" Jiang Yuan positioned himself at the door.

"Go ahead." Seeing this, Hou Lejia agreed.

Jiang Yuan stretched out his hand flatly, "Here, on the victim's neck, a dagger is placed, the skin slightly punctured, being pushed in by the suspect. The direction of these blood drops on the ground is towards the bedroom, and they are all slow blood..."

Hou Lejia watched Jiang Yuan, not quite understanding.

Jiang Yuan took two more steps forward, then turned around, "Here, the murderer made the first attack..."

"The victim might have fought back, but was pushed away."

"From the bloodstains, it can be seen that the murderer pushed the victim here."

Jiang Yuan continued to reconstruct the crime scene, moving into the bedroom.

Then, he didn't continue, but turned around and walked out of the bedroom, returning to the front door, "If it was an acquaintance, forcing with a knife at 3 a.m., isn't it a bit contradictory?"

Hou Lejia frowned.

"I think it was a stranger who committed the crime." Jiang Yuan had reconstructed the entire crime scene, although it was a rough version, he could create a detailed one if needed.

In this situation, Jiang Yuan's words were very assertive.

Hou Lejia asked, "If it was a stranger, how did they get into the victim's house at 3 a.m.?"

"The victim let them in."

"The victim?"

"Yes, I just took a look outside the door, I suspect the murderer's initial intention might have been just burglary." In recent days, Jiang Yuan had added sentences to so many petty thieves, he had a good understanding of their status.

Hou Lejia didn't believe it, "Steal what?"

"Bicycles and motorcycles at the door. Maybe they even wanted to break in, only such petty thieves would wrap themselves up so tightly."

"And then, the victim came over and opened the door to check?" Hou Lejia began to fill in the blanks himself.

Jiang Yuan nodded, "And was taken hostage back."

What Jiang Yuan said made sense, and Hou Lejia began to worry. This completely changed the direction of the investigation.

"If the murderer was a stranger, then the little girl is at great risk." Forensic Ye said slowly, everyone's expression was not very good.