Since Lu Chuan obtained the advanced fingerprint identification and analysis skills, he has actually not used this skill properly.
After the Song Kun murder case was solved, 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, and I'm from the High-tech Zone Criminal Police Brigade." Lu Chuan nodded. The High-tech Zone Criminal Police Brigade... Lu Chuan only knew the 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.
But Gao Wenxiang was different. Song Kun himself was 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 brigade last time were those of the Goldman Sachs disappearance case. I collected them, but the identification analysis was not good, so I had to ask Director Liu for help." Lu Chuan nodded, somewhat enlightened. It turned out that the Goldman Sachs disappearance case , the fingerprints on the electric car were collected by Gao Wenxiang.
To be honest, the level of collection needs to be improved.
"Is this Officer Lu's first time participating 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 it was indeed my first time to participate in the fingerprint battle. Working last year? Gao Wenxiang knew Lu Chuan, but he didn't know that Lu Chuan had only started working for more than half a year.
"Officer Lu is really young and promising!" Lu Chuan smiled without explaining. 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 became familiar with each other. Gao Wenxiang called himself brother: "Brother Gao, what else can I say?"
"It's not an explanation, just a little technique." Gao Wenxiang pointed to his own screen and then to Lu Chuan's screen: "The cases in the backlog are sorted by time."
"Cases before last year have appeared in the fingerprint battle basically every year, but the comparison has never been successful."
"So, it is best for us to focus our energy on this year's cases, so that the probability of winning 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 didn't popularize these tips to Lu Chuan. Lu Chuan nodded: "Let's go, smoke mine." He said, taking Gao Wenxiang was stunned for a moment when Huazi took out his bag.
It’s not easy for the criminal police officers who just started working now. Have you reached the level of smoking Huazi? Silently seeing their white sand put back, Gao Wenxiang and Lu Chuan got up and left the workstation.
Snapped! 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 minor crimes."
"When you go back for comparison later, pay more attention to this aspect of the case. It will be easier for the comparison to be successful." In the span of a cigarette, the two of them returned to their workstations again.
The conference room was quiet except for the whine of the computer fan. Everyone is in the zone. In a fingerprint battle, the most important thing is not how strong your fingerprint identification and analysis capabilities are.
Because everyone's level is about the same, in Liu Guodong's absence, whoever succeeds in the comparison first will have an element of luck.
Therefore, the most important thing for everyone is to select fingerprints for comparison. Here comes a rather interesting phenomenon.
There were a total of eighteen people participating in the battle. Except for Lu Chuan's computer screen, the other people's computer screens were browsing the cases that had happened this year.
Moreover, everyone invariably focused on three cases of arson, four cases of theft, and two cases of robbery.
Among these cases, choosing the one with the clearest fingerprints 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 select 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 didn't care much about this. Advanced fingerprint identification analysis gave Lu Chuan great confidence.
Therefore, from the beginning, Lu Chuan did not think about competing for a few simple cases with seventeen other colleagues. When Lu Chuan came up, he locked the fingerprints in the backlog to the murder case.
Thirteen murders, this is the total number of murders in the fingerprint battle of 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.
For 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 badly 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 fingerprints of the murder case, 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 appraisals. It has not been broken so far, so there are two possibilities.
First, the fingerprint owner’s information is not in the fingerprint database. Second, 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, it is too integrated and leaves little room for users to use it.
Image processing, to put it bluntly, is a kind of data processing. To reduce noise, sharpen, improve or reduce contrast, sometimes Lu Chuan needs 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.
