Chapter 159 Preprocessing Fingerprints
There are very few people who play cars, especially racing cars, who do not modify them.
None of Lu Yao’s friends who love to play with cars has not spent hundreds of thousands or even millions on car modifications.
It can be said that there is more than one vehicle modification car to support in the No. 3 arena.
However, the vehicle modification market is relatively niche after all, so most modified cars are actually repair shops.
In the entire Haizhou City, there are only a few capable people who can modify cars.
Sanyo Vehicle Repair Shop is one of the best.
Of course Lu Chuan didn't want to modify the vehicle. He was paying attention to the middle-aged man in the photo.
To be more precise, it was the middle-aged man showing his scissor-hands with his middle finger.
Of course, no matter how distinctive a man’s fingers are, they will not be as attractive as a little girl’s green and jade fingers.
What caught Lu Chuan's attention was the fingerprint on the middle finger of the man named Wang Qi.
There is always a feeling of déjà vu.
As an on-the-spot detective, Lu Chuan's intuition for solving crimes may be a little worse, but his intuition for fingerprints is definitely far superior to others.
For all the fingerprints that Lu Chuan has studied, he cannot say that he remembers every line, but there will always be a sense of familiarity.
In the eyes of fingerprint identification analysis criminal police, fingerprints are a person’s appearance.
With raised ridges and extended lines, each fingerprint has its own characteristics.
Just like there are always a few people who look similar in a crowd, the same is true for fingerprints.
In the photo, the man in the middle gestures with scissor hands, which is enough to capture the fingerprint of his middle finger clearly.
“Third brother, let me use this photo.”
“No problem, you can take it away.”
Lu Yao had an impression of this photo. It was a photo of the top three posing with the tuner after a competition. It was not important.
Besides, even if it’s important, it’s okay if Lu Chuan wants it.
“You guys play for now, I’ll come as soon as I can.”
Lu Chuan took down the photo and left the crowd.
When it comes to work, Lu Chuan naturally has a subconscious habit of vigilance.
More than ten meters away, Lu Chuan took out his mobile phone and took a photo of the whole thing.
The focus is on the fingerprint collection of a middle-aged man.
Of course, due to the pixel problem of the photo itself, the collected fingerprints are relatively blurry, but it should be usable after processing.
With Lu Chuan's intermediate fingerprint collection skills, this difficulty was not a problem for him. Within a few minutes, the photo was hung on the wall again.
Racing is of course impossible to just race.
But Lu Chuan did not participate in the subsequent events.
This is probably another benefit of attending the Public Security University. The ideological education was very thorough, and Lu Chuan did not have the bad habits of ordinary rich children.
Looking at the time, it was almost midnight, and there was no need to deal with fingerprints now.
Lu Chuan just felt that the middle-aged man's fingerprints were somewhat familiar, so he collected the fingerprints in a cautious and responsible manner.
When you have free time, process it and compare it in the system.
After all, most of the cases that Lu Chuan came into contact with were major and important cases, and fingerprints that made him familiar with them were probably not good at all.
The next day during the Spring Festival, Chenguang Community was bustling with activity.
On a sunny morning, every household comes out to post Spring Festival couplets.
The custom of posting Spring Festival couplets has different times in different places.
Some are on the day before New Year’s Eve, and some are in the early morning or evening of New Year’s Eve.
There are also posts posted early on the first day of the new year.
The custom here in Haizhou City is to post Spring Festival couplets early in the morning on New Year’s Eve.
In the impression of the Lu family, even when they were the poorest in the past, they would put up Spring Festival couplets during the Spring Festival.
Even when pasting Spring Festival couplets, white flour and water are used to make a paste, which acts as an adhesive.
Commonly known as white flour paste.
I don’t know when Lu Chuan started this work.
Maybe it was my year in college, maybe my sophomore year.
Lu Chuan didn’t remember clearly. It seemed that one year suddenly, his father had let go of many things at home.
"Dad, the Spring Festival couplets are pasted, I'm going to set off firecrackers."
The Spring Festival couplets are not just couplets pasted on the entrance door, but also good luck, safe coming and going, look up and see you Hi and so on widgets.
As for the flocks of chickens and ducks that Lu Chuan saw when he was a child, he can no longer see them now.
If there are any, they probably can only be posted on the kitchen chopping board.
The Spring Festival breakfast is simple, no different from usual times.
Lunch and dinner are combined into one, and the whole family eats together.
According to the rules of the Lu family, no one was invited to cook this meal, but the daughters-in-law of each family showed off their talents.
Even some men show off their hands.
Others were playing mahjong, fighting landlords, and smoking and chatting. There was laughter and laughter in the community hall.
Divided into three large circles.
The generation led by Lu Jianguo was in the middle of the hall, pushing Pai Gow.
The second generation of the Lu family, brother Lu Qiqiang, plays mahjong in the northeast corner.
There are more than a dozen third-generation children of Lu Chuan, some of whom play games, some who smoke, and some who watch videos.
As for Lu Chuan...
Chatting.
“Is your dinner ready?”
"No, my parents are busy."
Shen Yan was wearing cartoon bear pajamas, lying lazily on the bed, staring at the screen of her mobile phone with her big eyes smiling.
"Do you want to come to my house to eat?"
Lu Chuan's heart trembled, knowing that Shen Yan was joking, but he still felt strange.
“Okay, I’ll have a couple of drinks with my dad, but I don’t know where to stay if I drink too much?”
"My house only has two bedrooms, where do you want to live?"
As soon as she sent it, Shen Yan felt her cheeks get hot and hurriedly withdrew the message.
"Don't withdraw, I've seen it all..."
In the past two months, the two of them have been chatting quite boldly.
“Humph, I’ll see it when I see it. I won’t talk to you anymore. I’m going to get up.”
"Just got up?"
......
On the seventh day of the Lunar New Year.
Now surveying the office.
Lu Chuan went to work early, mopping the floor, wiping the table, and making tea, all at once.
The anthurium by the window has not dried up because of the passing of the holidays.
On the contrary, after a week of brutal growth, the leaves became greener and the anthurium became more delicate.
The tall and straight figure resembles the arrogant forensic doctor Shen.
Click.
Lu Chuan took a photo of anthurium and sent it to Shen Yan.
"Good morning, Lu Chuan, happy New Year!"
Liu Guodong is always the second one to come to the office after Lu Chuan comes.
“Master, Happy New Year!”
During the Spring Festival, the site survey office had a gathering.
It was organized by Liu Guodong and went to Wang Kai's house to pay New Year's greetings.
The current survey office is not like the action team because it was established late, and Wang Kai is a veteran.
Other action groups also gathered for the New Year, but they went to the home of an old leader who had retired.
"Is there a morning meeting today?"
Lu Chuan put down the anthurium and handed the enamel vat to Liu Guodong.
“Today is the heart-warming meeting, so it will probably take a little longer.”
During the Spring Festival, Haizhou City can be described as calm.
Of course there are cases, but there is no murder.
For the criminal investigation detachment, as long as there is no murder case, the rest is not a big deal.
After Liu Guodong left, Lu Chuan turned on the computer and started his day's work.
In fact, there hasn’t been a lot of work recently in field surveying.
If there is no murder, there is no scene, and there is no need to attend the scene for investigation.
As for the cases in each district and county, naturally they have their own people to investigate.
If we all pointed at a few people from the criminal investigation detachment, we would be too busy to do it.
What Lu Chuan wanted to get was the familiar fingerprint he found in Arena No. 3 seven days ago.
Now that I have nothing to do, I just want to deal with it and see if I can gain anything.
The reproduced fingerprint photos are a bit blurry and require noise reduction processing to improve clarity.
This is the first time that Lu Chuan has used photos and unintentionally taken fingerprints for identification and analysis.
When he was in college, Lu Chuan heard from his teacher that some cases were solved through fingerprints extracted from ordinary photos.
Unexpectedly, Lu Chuan met one himself.
The preprocessing progressed very quickly. In less than ten minutes, Yang Sen and Lao Bai just stepped into the office door and it was over.
(End of this chapter)