Jiang Yuan returned to Ningtai County after a journey of 1600 kilometers, round trip of over 3000 kilometers, with only one day's rest in between. He felt confused about what Luojin City was like. Huang Qiangming received special treatment. The other three escorted Liu Yuquan in the car. It was already considered comfortable to send three people instead of four for the long journey.

Huang Qiangming entered the forensic office with a smile of 22.2 degrees. Seeing Jiang Yuan looking exhausted, he couldn't help but laugh and said, "Look at you, so tired. I told you not to go for the arrest, let others do it."

"I thought maybe there would be a need to search for clues or evidence at the crime scene," Jiang Yuan said. Even though he had rested for a night, he still felt tired. But out of respect for the captain, he stood up.

Huang Qiangming handed Jiang Yuan a cigarette and gave one to Wu Jun as well. After Wu Jun lit it and took a puff, he said, "Your idea is good. Indeed, when facing unsolved murder cases, we should go all out. However..." Huang Qiangming closed the office door and continued speaking in a lower voice. Behind the door, a portrait of Guan Yu was hanging, seemingly looking at people with his phoenix eyes.

Obviously, Comrade Wu Jun had some alternative understanding of how comrades from other provinces could refresh and improve themselves. And the ceremony was not yet complete. Huang Qiangming's mouth twitched twice, pretending not to see it, and turned around.

"Let's close the door and say something not quite correct. Jiang Yuan, anyone can search for clues at the arrest scene. Even if it's particularly difficult, you can collect evidence and analyze it later. If necessary, you can go to the scene temporarily, there's still time." Huang Qiangming's voice became noticeably quieter. Wu Jun coughed twice and quickly said something politically incorrect, "Jiang Yuan, the captain really cares about you. I agree too. If you have the ability to solve the case, leave the arrest work and the evidence collection to others." Yes, everyone has their own expertise, and we should cooperate. Huang Qiangming felt that he had said it well.

He suddenly had a strong desire to say these things because Jiang Yuan had shown astonishing abilities. He solved the case from 13 years ago easily and accurately.

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The suspect confessed some details of the crime on the way, and Huang Qiangming couldn't wait to verify them. Cases like this were kept confidential, especially the details of the crime, such as where the clothes were torn, which objects were moved at the scene, where the murder weapon was hidden, and how the bloodstained clothes were handled. Some of these details were not even recorded in the case file. They could only be seen and heard at the scene. Once these details were confirmed, the suspect's identity would also be confirmed.

Nowadays, even theft cases had a process of on-site identification. It was equivalent to confirming the effectiveness of the suspect's confession from another perspective.

The He Jingqin case was personally handled by Huang Qiangming after he became the captain of the criminal police. The difficulty of this case at that time was beyond words. Huang Qiangming was reminded of it. The direction of the criminal investigation at that time was wrong because there was no evidence of rape. There were several cases of burglary near the building where the victim lived within a few months, so the main consideration was from the angle of death caused by robbery. Later, they even considered whether it was a hate crime or attempted kidnapping due to the relationship between He Jingqin's parents.

At that time, this case attracted a lot of attention because it happened in the tallest building in the county, causing panic and unease among the residents in the building and nearby. It also had a significant social impact. The project team worked tirelessly day and night. Huang Qiangming only slept four hours a day for two consecutive weeks, half of which was in the car. The other members of the project team were also commendable in terms of their enthusiasm and spirit of struggle. At its peak, the project team had over a hundred members, and for three months, there were thirty to forty people working on this case.

However, solving a case was not something that could be achieved with enthusiasm and struggle alone.

If we calculate based on working hours, the He Jingqin case from 13 years ago involved at least seventy to eighty thousand working hours from the police system in Ningtai County. In the following years, several hundred hours were dedicated to this case for clearing the backlog. But how many working hours did Jiang Yuan spend on this case? It was only around ten hours to reopen the case, and maybe a few hundred hours for the subsequent arrest. The work efficiency was a hundred times higher.

The most crucial point was that the way this case was solved was different from how Jiang Yuan had used fingerprints, DNA, and footprints before. The reconstruction of the crime scene was not just a direction for investigation, it created a platform.

Once Jiang Yuan reconstructed the crime scene, all the members of the project team could understand the whole picture of the crime scene. It was like showing everyone a video of the bloodstains at the crime scene.

With this foundation, solving the case would obviously be better than relying solely on a single fingerprint or DNA luck.

This guy was really capable! Huang Qiangming didn't rush Jiang Yuan and patted his shoulder, saying a few kind words like "rest well" before opening the office door and leaving. He didn't even glance at Guan Er Ye.

Wu Jun went forward and put away Guan Er Ye, thinking about finding a new place to put it next time. Jiang Yuan was not in a good state, and he didn't have the energy to do anything. After reading for a while, he left work on time.The next day, Jiang Yuan arrived a bit later. Liu Yuquan had already been properly locked up in the detention center, with the prosecutor's office intervening in advance. During this period, the Ningtai County Bureau, which had been solving cases one after another, had also created considerable pressure for the units upstream and downstream. However, solving murder cold cases was always a good thing. Some people had already started considering how to compile their work reports. When Jiang Yuan entered the office, he saw Wu Jun writing furiously.

This made Jiang Yuan feel a bit emotional: Forget about civil servants having a leisurely life, just look at Forensic Wu, a cup of clear tea, a cigarette, a pen writing all day, never stopping.

"Master, what are you writing? Share some with me," Jiang Yuan finished his sentiment, took the initiative to step forward, ready to work.

Wu Jun glanced at him, sighed, and said, "Forget it, these are all things I'm familiar with. If I let you do them, Captain Huang will scold me for being thoughtless." "How could that be..."

"The old crocodile is hard to deal with." Wu Jun shook his head, "Just finish the injury assessment from a few days ago, and that's it. If you have time, go work on the cold cases. You can't work on cold cases every day." Jiang Yuan laughed.

Wu Jun didn't laugh, he looked up at him and said, "Did you forget what Captain Huang told you yesterday?" "Uh... basically, yes."

"Normally, a project team working on cold cases takes two to three months to solve a case. You've only spent a short time on it, what do you mean by working on cold cases every day? Since you've started, you should at least produce something." Wu Jun was educating Jiang Yuan. Jiang Yuan laughed twice and said, "Didn't I just solve a cold case?"

"Time is also important." Wu Jun said earnestly, "Captain Huang has already started arranging for some teams to close cases as soon as possible in the group chat yesterday, can you guess what he's trying to do?"

Although Jiang Yuan didn't understand, he followed the conversation and said, "Work on cold cases."

"Exactly, so do you think you really have that much time to waste? Hurry up, Captain Huang is ready to cooperate with you, but you've been helping me write files for half a day... Captain Huang could tear me apart." "That's unlikely..."

"Do you think there are few stories about killing the chicken to scare the monkey?" "Am I the monkey?" Jiang Yuan pointed to his nose. Wu Jun nodded. "And you're the chicken?" Wu Jun nodded again.

Jiang Yuan silently returned to his computer to work. It took Wu Jun a long time to realize what had happened. He smoked half a cigarette in frustration, considering that Jiang Yuan had used the word "leisurely", he decided to let him off the hook for now.

Jiang Yuan continued to flip through the cold cases from 13 years ago, and then he came across a case from 17 years ago.

A body was found by the side of a country road. Due to the cover of trees, it wasn't until the body began to emit a foul smell that a passerby reported it. The case had been stagnant since then... Jiang Yuan noticed it because the police officer who conducted the on-site investigation at the time found a third of a bloody fingerprint on the victim's leather jacket. Seeing this fingerprint, Jiang Yuan had a strong urge to compare it. "It's you." Jiang Yuan muttered, moved his chair, and began to look closely at the screen.