Thirteen years ago, a highly influential murder case occurred in Qianzhou City.

A high school student, after finishing evening classes, was robbed and murdered at his home.

The amount stolen was only 500 yuan.

Police found the murder weapon at the crime scene, a fruit knife from the student's home.

A severely deformed bloody fingerprint was discovered on the knife handle.

However, the deformation of the fingerprint was too severe and the technology at the time was limited, so it could not be successfully identified right away.

After that, it entered the Provincial Fingerprint Database Battle Repository, and it wasn't until now that it was discovered by Lu Chuan.

Every time the provincial department holds a fingerprint battle, they set up a hero list in the system to motivate the dozen or so experts to excel beyond each other.

Everyone's name is on it, and solving a case accumulates corresponding points.

For instance, solving a murder case gives ten points.

Other cases, depending on the nature and impact, have varying point values ranging from three to eight points.

According to past experiences in fingerprint battles, the first day is usually about finding one's bearings and familiarizing with the environment, and it's rare for cases to be matched.

Typically, it's from the second day onwards that people start seeing results.

The third day reaches a peak, the fourth day an apex, and by the last day, everyone is usually exhausted and calls it a day.

But this time, some people had just opened their computers for a few minutes and saw the hero list ranking pop up automatically on their screens.

Next to Lu Chuan's name, it astonishingly displayed ten points!

What does ten points mean?

It's a murder case!

Hasn't it been less than an hour since the battle started?

Lu Chuan has already solved a murder case?

What is an unsolved murder case? It's a case that many people have studied, but it has remained unsolved.

And those that enter the Provincial Fingerprint Battle Repository are ones with great impact and a vile nature.

Sitting next to Lu Chuan, Zhao Zhigao had already jumped up at this moment.

"You solved a murder case?"

Lu Chuan nodded, what's so strange about it? He specifically chose murder cases.

"Just lucky, this fingerprint was relatively simple."

Simple?

Zhao Zhigao almost rolled his eyes.

Cases that enter the Provincial Fingerprint Battle aren't simple at all!

Zhao Zhigao glanced at the screen, the Qianzhou City high school student robbery case...

He knew this case, it had been over a decade, and when he participated in fingerprint battles before, he had studied this case.

A bloody fingerprint, severely compressed, with no way to start analysis.

"Damn! How could it be him?"

As the two were chatting, they were interrupted by a shout, and they turned to see it was a middle-aged detective with a Mediterranean hairstyle.

Zhao Zhigao had participated in numerous battles and knew these dozen or so people: "From the City Public Security Bureau's forensic identification center, Wang Huiyou, no official position, just skilled, the case you just solved is theirs."

As he was explaining, Wang Huiyou was already walking towards Lu Chuan.

"Teacher Lu, thank you, this case has been unsolved for over a decade, didn't expect it would be solved one day."

Those who can teach are teachers, most detectives here are technical guys.

Good at handling equipment but not very skilled at socializing, they prefer straightforward communication.

The case Lu Chuan solved was the one Wang Huiyou had done fingerprint analysis for back then.

Unfortunately, at the time they didn't match the suspect, so it was put into the Provincial Fingerprint Battle Repository, and a decade passed with no results.

Now it's finally seeing the light of day.

"No need to thank me, it was just luck, maybe I'm more suited for this kind of fingerprint."

Fingerprint analysis methods are numerous, and no one can be proficient in all techniques.

Thus, some detectives have higher success rates with arc fingerprints, while others are more successful with whorl patterns.

Some focus on single-finger fingerprint analysis, like Liu Guodong, who's most familiar with the Qingdao-style single-finger fingerprint analysis method.

Others are skilled at analyzing compound fingerprints, or focus heavily on palm print analysis.

Everyone has their own expertise, and each person excels in different areas.

"Old Wang, from what you just said, the person who matched the fingerprint was unexpected?"

When Wang Huiyou just saw the case, he didn't immediately come to Lu Chuan but was very shocked about the matched person.

Wang Huiyou nodded: "The match... was the current husband of the victim's mother."

What?

"Her husband's current partner?"

"Are you sure?"

Wang Huiyou shook his head affirmatively: "There's no mistake, I was involved in this case back then, I remember it very clearly."

"This student was doing well academically, there were only six months until the college entrance exam."

"The one who reported the case was the victim's uncle..."

Wang Huiyou briefly recounted the case details from back then.

The victim's parents divorced, the father was disabled, and the son was placed with the mother.

Later the mother remarried, getting her current husband.

"On the day of the incident, the victim's mother was working overtime, and the child's uncle was supposed to bring him food, but found him already dead."

"Unexpectedly, the child's murderer turned out to be his stepfather..."

Since the fingerprint had been matched, the rest was simple: just follow the lead and arrest the person directly.

Li Donglin returned to the battle meeting room less than an hour after leaving.

He heavily patted Lu Chuan on the shoulder: "I knew you wouldn't disappoint me!"

"Good, good!"

After a short interlude, the meeting room quieted down again. As the battle had just begun, Lu Chuan had already gotten off to a good start by solving a thirteen-year-old murder case, truly giving everyone a boost of confidence.

"Ding!"

Less than twenty minutes after Lu Chuan solved the murder case, someone else matched a fingerprint.

On everyone's computer screens, the hero list automatically expanded.

Lu Chuan still ranked first, with ten points for solving an unsolved murder case.

At this moment, a second name appeared, Tian Rong, with five points for solving a robbery case.

"Teacher Tian, congratulations!"

"Director Tian, congratulations!"

Lu Chuan did not know who Tian Rong was, but several people in the meeting room offered congratulations.

"Not worth mentioning, just lucky, hehe."

The speaker did not stand up, and Lu Chuan, standing up to look, saw a middle-aged man sitting across from him.

The man appeared to pay much attention to health, with goji berries and red dates in his teacup.

Zhao Zhigao explained: "An expert from the provincial forensic identification center, one of the best in fingerprint analysis in our province."

Lu Chuan nodded, opened the case that the other had matched, and looked at the matched fingerprint.

It was blurry, with all edges fringed, being able to match such a fingerprint was indeed remarkable.

Lu Chuan sat down and continued typing on the keyboard.

The fact that Tian Rong could match such a difficult fingerprint made Lu Chuan see him in a new light.

Even though he had advanced fingerprint analysis skills, it didn't mean he was stronger than everyone else.

There are indeed experts at the provincial level, and judging from the difficulty of the fingerprint just examined, this Tian Rong isn't much inferior to him.

It seems the level of advanced fingerprint analysis is equivalent to the top experts of the provincial forensic team.

With more motivation, Lu Chuan set his sights on another murder case, onwards!

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