People who play with cars, especially race cars, rarely don't modify them.

Among Lu Yao's friends who enjoy playing with cars, which one hasn't spent hundreds of thousands or even millions on car modifications?

It can be said that just the No. 3 racetrack alone supports more than one car modification business.

However, the car modification market is relatively niche, so most modified cars are actually from repair shops.

In the entire Haizhou City, there are only a few experts capable of modifying cars.

The Sanyo Vehicle Repair Factory is one of the best among them.

Of course, Lu Chuan wasn't interested in modifying cars; he was interested in the middle-aged man in the photo.

More precisely, it was the middle finger of the man's hand showing a V sign.

Of course, a man's finger, no matter how unique, can't be as attractive as a girl's slender fingers.

What caught Lu Chuan's attention was the fingerprint on this man named Wang Qi's middle finger.

There was always a familiar feeling about it.

As a crime scene investigative officer, Lu Chuan might not have the best instincts for solving cases, but when it comes to fingerprints, he's far more intuitive than others.

For any fingerprint that Lu Chuan has studied, he might not remember every ridge, but there will always be a sense of familiarity.

In the eyes of a fingerprint identification analyst, a fingerprint is like a person's face.

The raised ridges, the extending lines, each fingerprint has its own characteristics.

Just like among a crowd, there are always a few people who look alike, fingerprints are the same.

In the photo, the man in the middle was making a V sign with his fingers, perfectly capturing his middle finger's fingerprint.

"Third Brother, can I use this photo for a bit?"

"No problem, you can take it."

Lu Yao remembered this photo; it was a picture taken after a race, a group photo of the top three winners with the modification expert, nothing important.

Besides, even if it was important, it wouldn't be an issue if Lu Chuan wanted it.

"You guys enjoy yourselves, I'll be right back."

Lu Chuan took the photo and left the crowd.

Concerning work, Lu Chuan naturally had a subconscious habit of being cautious.

A dozen meters away, Lu Chuan took out his phone and took a snapshot of the entire photo.

The main focus was a close-up of the fingerprint on the middle-aged man's finger.

Of course, due to the photo's resolution, the collected fingerprint image was a bit blurry, but with some processing, it should be usable.

With Lu Chuan's intermediate fingerprint collection skills, this little obstacle couldn't stop him; within minutes, the photo was back on the wall.

Racing is, of course, not just about racing.

However, Lu Chuan didn't go to the subsequent events.

That's perhaps another benefit of attending the Public Security University; the ideological education was very thorough, and Lu Chuan didn't pick up the typical bad habits of the wealthy.

He checked the time; it was almost midnight, and it wasn't necessary to handle the fingerprint now.

Lu Chuan only felt a sense of familiarity with the middle-aged man's fingerprint and collected it based on a cautious and responsible attitude.

When he has some free time, he plans to process it and run it through the system for a comparison.

After all, most of the cases Lu Chuan dealt with were major cases. If he's familiar with a fingerprint, it's likely not good news.

On the second day of the New Year, Chenguang District was bustling with noise and excitement.

On a sunny morning, every household was out putting up Spring Festival couplets.

The custom of putting up couplets differs from place to place.

Some do it the day before New Year's Eve, some on the morning or evening of New Year's Eve.

Some even put them up on the morning of the first day of the new year.

In Haizhou City, the custom is to put up couplets early on New Year's Eve.

In the Lu family's memory, no matter how poor they were in the past, they would always put up couplets during the New Year.

They would even extravagantly use white flour and water to make a paste as an adhesive.

Commonly known as flour paste.

This task, who knows from when, became Lu Chuan's responsibility.

Maybe it was in his first year of college, or maybe his sophomore year.

Lu Chuan doesn't remember clearly, but it seems that one year, his father suddenly handed over a lot of family responsibilities to him.

"Dad, the couplets are up, I'm going to light the firecrackers."

The couplets are not just pasted on the entrance, but also include auspicious phrases like "Well from the Source" and "Safe Travels," among others.

As for the chickens and ducks Lu Chuan saw in his childhood, they can't be seen now.

If there were any, they could probably be pasted on the kitchen chopping board.

The New Year's breakfast is simple, not much different from usual.

Lunch and dinner are combined; the whole family gathers for a meal.

According to the Lu family's custom, the meal is not outsourced; instead, each household's wife shows off their skills.

Some of the men also display their culinary talents.

Others play mahjong, some play cards, while others smoke and chat.

Laughter fills the community hall.

There are three large groups.

Lu Jianguo leads the first generation in the center of the hall, playing Pai Gow.

The second generation of the Lu family, with Lu Qiqiang's brothers in the northeast corner, playing Mahjong.

Lu Chuan, along with a dozen third-generation members, some are gaming, some are smoking, and others are browsing videos.

As for Lu Chuan...

He's chatting.

"Is your dinner ready?"

"Not yet, my parents are busy."

Shen Yan, wearing pajamas with cartoon bears, lazily lies on the bed, eyes smiling at the phone screen.

"Do you want to come over for dinner?"

Lu Chuan's heart skipped a beat, knowing Shen Yan was joking, yet felt a bit different.

"Sure, I'll have a couple of drinks with your dad. Just not sure where I'd sleep if I get drunk?"

"My house only has two bedrooms; where do you want to sleep?"

As soon as she sent the message, Shen Yan felt her cheeks heat up and quickly retracted it.

"Don't bother retracting; I already saw it..."

In the past two months, their chats have grown quite bold.

"Hmph, saw it, then saw it. I'm not talking to you anymore. I'm going to get up."

"Just getting up?"

...

The seventh day of the New Year.

At the crime scene investigation office.

Lu Chuan arrived early, mopping the floor, wiping the desk, and brewing tea all in one go.

The flamingo-lily by the window hasn't withered despite the holiday passing.

On the contrary, after a week of wild growth, the leaves are greener, and the flowers more vibrant.

Its upright posture resembles the proud Shen Yan.

Click.

Lu Chuan took a photo of the flamingo-lily and sent it to Shen Yan.

"Lu Chuan, morning, Happy New Year!"

Liu Guodong is always the second to arrive at the office after Lu Chuan.

"Master, Happy New Year!"

During the New Year, the crime scene investigation office gathered once.

It was organized by Liu Guodong, visiting Wang Kai's home to pay respects.

The Crime Scene Investigation Office, unlike the action team, was established later, making Wang Kai a founding member.

Other action teams also gathered during the New Year, visiting the homes of retired leaders.

"Are we having a morning meeting today?"

Lu Chuan lowered the flamingo-lily cup and handed the enamel cup to Liu Guodong.

"Today is a 'get back to work' meeting, so it might take a little longer."

During the New Year, Haizhou City could be described as peaceful.

There were cases, of course, but no homicides occurred.

For the Criminal Investigation Team, as long as there's no murder case, the rest aren't major issues.

After Liu Guodong left, Lu Chuan turned on the computer and began his day's work.

The crime scene investigation recently hasn't had a heavy workload.

Without murder cases, there are no crime scenes, so the team doesn't need to be dispatched.

As for cases in various districts, they naturally have their own people to investigate them.

If everyone relied on the few people in the Criminal Investigation Team, they'd be overwhelmed.

Lu Chuan wanted to examine the familiar fingerprint found seven days ago at the No. 3 racetrack.

With nothing else to do now, it's a good time to process it and see if there's any discovery.

The photographed fingerprint was a bit blurry, needing noise reduction to enhance its clarity.

This was Lu Chuan's first-time using a photo to unintentionally capture and analyze a fingerprint.

During university, Lu Chuan's teacher mentioned that some cases were solved using fingerprints extracted from ordinary photos.

Little did he know, Lu Chuan encountered one himself.

The preprocessing was quick; within ten minutes, Yang Sen and Old Bai had just entered the office, and it was done.

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