Chapter 136: Backlog of Murder Cases
Since Lu Chuan obtained the advanced fingerprint identification and analysis skills, he has not actually used this skill properly.
After the investigation of Song Kun’s murder case, Lu Chuan joined Li Donglin’s task force.
In the past two months, most of the energy has been focused on the task force.
This time I can calm down and do some fingerprint identification analysis, which will definitely play a big role.
"Officer Lu?"
Lu Chuan, who was scanning the fingerprint library for backlogged cases, was awakened by a voice beside him.
"Hello, Officer Lu, my name is Gao Wenxiang, I am from the High-tech Zone Criminal Police Brigade."
Lu Chuan nodded, the High-tech Zone Criminal Police Brigade...
Lu Chuan only knows Captain Yuan Shaokang, and Song Kun's apprentice Li Kai.
I have never dealt with this Gao Wenxiang.
"Lao Song's case... Thank you for your help."
Although everyone who participated in the fingerprint battle knew that Lu Chuan was from the Criminal Investigation Detachment, few people knew about Lu Chuan's specific deeds. Know.
But Gao Wenxiang is different. Song Kun himself is from the Criminal Police Brigade of the High-tech Zone.
Song Kun’s murder case was solved thanks to Lu Chuan.
"You're welcome, it's all what you should do."
The two shook hands, and they were considered acquainted.
"Hey...Old Song..."
Gao Wenxiang obviously had a good relationship with Song Kun and felt sorry for Song Kun's sacrifice.
"By the way, the fingerprints of our team last time were the fingerprints of the disappearance of Goldman Sachs. I collected them, but the identification and analysis were not good, so I had to ask Director Liu for help."
Lu Chuan nodded, somewhat enlightened. It turned out that the fingerprints on the electric car in the disappearance of Goldman Sachs were collected by Gao Wenxiang.
To be honest, the level of collection needs to be improved.
"Is this your first time for Officer Lu to participate in a fingerprint battle?"
Gao Wenxiang glanced at Lu Chuan's computer screen and leaned forward.
Lu Chuan nodded: "I only started working last year, and this is indeed my first time participating in a fingerprint battle.
Did you work last year?
Gao Wenxiang knew Lu Chuan, but he didn’t know that Lu Chuan had only been working for more than half a year.
“That Officer Lu is really young and promising!”
Lu Chuan smiled and did not explain.
Gao Wenxiang's social skills obviously exceeded Lu Chuan's expectations.
"Brother, let me tell you, this fingerprint battle...is not how you play it."
Huh?
The two chatted for a while and got acquainted with each other a lot. Gao Wenxiang called himself brother: "Brother Gao, what else can I say about this?"
"It's not much, just a little bit. Skills."
Gao Wenxiang pointed to his screen and then to Lu Chuan's screen: "The cases in the backlog are sorted by time."
“Cases before last year have basically appeared in the fingerprint battle every year, but there has never been a successful comparison.”
“So, it is best for us to focus on this year’s cases, so that the successful comparison The probability is much higher."
"And..."
Gao Wenxiang paused and took out a pack of cigarettes from his trouser pocket: "Go out and talk?"
Liu Guodong Obviously he didn't teach Lu Chuan these tips. Lu Chuan nodded: "Let's go, whip me."
As he said that, he took out the Huazi from his bag, and Gao Wenxiang was stunned for a moment.
The criminal police officers who have just started working now are not easy.
Have you reached the level of smoking Huazi?
Seeing their white sand put back in silence, Gao Wenxiang and Lu Chuan got up and left the workstation.
Pop!
Gao Wenxiang lit a Chinese cigarette that started with the word "3", and Gao Wenxiang half-squinted his eyes, a little intoxicated.
“This Huazi tastes really good...”
Lu Chuan also lit one himself, holding it in his hand but not inhaling.
For Lu Chuan, the social function of cigarettes is obviously greater than the need for nicotine.
“What else did brother just say?”
"Oh, you are talking about that," Gao Wenxiang took another puff of cigarette: "In the fingerprint battle we organized, it is actually very difficult for murder cases or other major backlog cases to be solved, so in order to make the results look better, the city bureau will release some comparisons every year Simple theft, arson or other small cases. "When you go back to compare later, pay more attention to these cases, it will be easier to compare successfully."
A cigarette. After a while, the two returned to their work station again.
In the quiet conference room, there was only the whine of the computer fan.
Everyone has entered the state.
In a fingerprint battle, the most important thing is not how strong your fingerprint identification and analysis capabilities are.
Because everyone is of similar level, in Liu Guodong's absence, whoever succeeds in the comparison first will have an element of luck.
So, the most important thing for everyone is to choose the fingerprint for comparison.
This is where an interesting phenomenon occurs.
A total of eighteen people participated in the battle. Except for Lu Chuan's computer screen, the other people's computer screens were browsing the cases that happened this year.
Moreover, everyone invariably focused on three cases of arson, four cases of theft, and two cases of robbery.
Selecting the one with the clearest fingerprints among these cases is a top priority.
Of course, no one is in a hurry now.
Choosing a fingerprint is not something you can do in a short while.
Even if you have selected it, you still need to preprocess the fingerprint, which is even more time-consuming.
Although the city bureau will release some simple cases to prevent the fingerprint battle from being fruitless, it is definitely not a case that can be solved at a glance.
The difficulty is still there.
Lu Chuan doesn’t care much about this.
Advanced fingerprint identification analysis gave Lu Chuan great confidence.
So, from the beginning, Lu Chuan didn't think about fighting a few simple cases with his seventeen other colleagues.
When Lu Chuan came up, he locked the fingerprints in the backlog to the murder case.
Thirteen homicides, this is the total number of homicides in this fingerprint battle of the Haizhou City Public Security Bureau.
Of course, this does not mean that there are only thirteen murder cases in the history of Haizhou City, but there are only thirteen cases with fingerprint evidence.
Others, there were no fingerprints at the scene.
The first case selected by Lu Chuan was a murder case that occurred in the High-tech Zone seven years ago.
Lu Chuan did not pay attention to the specific content of the case. His attention was on the fingerprints collected at the scene.
The fingerprint is only half the size of a normal fingerprint, and the edges are severely worn and the ridges are twisted and folded.
Although the clarity is acceptable, the fingerprints are severely distorted and deformed due to excessive force, making it difficult to identify.
The murder fingerprint, and it was a case seven years ago, must have gone through multiple rounds of investigations by the Haizhou City Public Security Bureau.
It is even possible that experts from the provincial department were invited to conduct appraisal.
It hasn't been broken so far, so there are two possibilities.
First, the fingerprint owner’s information is not in the fingerprint database.
The second reason is that the fingerprint preprocessing is not in place and the identification analysis is unsuccessful.
“It’s up to you!”
Thirteen murder cases, this is the target that Lu Chuan has set for himself in this fingerprint battle.
Of course, Lu Chuan's goal is not to solve all thirteen cases, but to identify and analyze all the fingerprints involved.
As for how many can be successfully compared, it depends on God’s will.
PS software is Lu Chuan’s main offensive weapon this time.
Compared with other image processing software on the market, PS has relatively powerful functions, especially in layered processing of images, which has great advantages.
However, this kind of software also has its own shortcomings, that is, the integration is too high, and the user has little room to play.
Image processing, to put it bluntly, is a kind of data processing.
Noise reduction, sharpening, improving or reducing contrast sometimes requires Lu Chuan to set parameters himself.
At this time, PS software is not as easy to use as some more open image processing software.
Then, the sound of intensive keyboard tapping came from the quiet conference room.
Many people turned their heads and looked over.
Gao Wenxiang also looked sideways at Lu Chuan, and saw a scene he would never forget.
(End of this chapter)