It is still a process of image layering and mathematical transformation.
Most of the fingerprints Lu Chuan collected this time were blurred into paste, and the processing methods were relatively similar.
However, compared with just now, the speed of computer calculations was a bit slow this time.
Running the fingerprint comparison system and PS image processing software at the same time makes the computer somewhat overwhelmed.
In less than a minute, the roar of the cooling fan started.
Lu Chuan didn't pay attention. This was the normal working state of the computer.
Otherwise, why would you need a cooling fan?
Only when there is sound can it prove that the work is done properly.
The buzzing roar continued, and so did Lu Chuan's identification and analysis.
Ding!
The sound of a perfect match, unique to the fingerprint comparison system, is so sweet.
"Teacher Lu...the comparison was successful..."
The beep woke up Hu Xiaoyue, who had been watching from behind, but did not wake up Lu Chuan, who was processing fingerprints.
Hu Xiaoyue couldn't help but remind him.
Lu Chuan turned around blankly: "You are..."
"Hello, Mr. Lu, my name is Hu Xiaoyue, and I am a criminal police officer in the current investigation office of the BZ City Criminal Investigation Detachment."
Hu Xiaoyue was elegant and generous, with two small dimples when she smiled. She raised her hands slightly to indicate the tea cup in her hand.
"I just poured you tea...but I saw you were dealing with fingerprints, so I didn't dare to disturb you."
"Oh," Lu Chuan really didn't notice the policewoman: "Sorry, Officer Hu, I was busy and didn't notice you."
"Also, you don't need to call me teacher, just call me Xiao Lu or Lu Chuan."
After saying hello, Lu Chuan had no desire to continue chatting.
At this moment, the processing of the second fingerprint has reached a critical moment and is still a little bit away from being completed.
Hu Xiaoyue nodded slightly: "I just heard the system prompt. It should be that your fingerprint comparison was successful."
After reminding Lu Chuan, Hu Xiaoyue turned around and left. The tea in the cup was cold and needed to be replaced.
"Thanks."
After Lu Chuan thanked him, he turned around and threw himself on the computer to continue the final preprocessing of the second fingerprint.
The keyboard was being tapped one after another, and combined with the roar of the computer fan, it actually felt like a symphony.
All members of the task force are busy.
This is a coordinated battle.
Dozens of people from criminal investigation, economic investigation, and technical police departments work together to work together.
However, numbers may not necessarily be effective, just as truth is often in the hands of a few.
In most cases, the people involved in solving crimes just treat their job as a job.
Finding important clues sometimes requires a little luck, but most of the time it takes a little persistence.
Twenty-eight minutes past midnight.
Ding!
The system sounded a pleasant beep for the seventh time, marking the seventh successful fingerprint match.
Out of thirteen fingerprints, Lu Chuan has successfully matched seven of them!
The report that had just come out of the printer was still warm, and the information about the four people was displayed in front of Lu Chuan.
Thirteen fingerprints, two of which belong to Chen Gang.
Apparently, he left quite a few traces in the basement.
In addition to him, the information of three other people was compared, proving that they had been in this basement.
However, six fingerprints were not successfully matched.
"The target person of these six fingerprints is not in the fingerprint database."
Lu Chuan was very confident in his fingerprint preprocessing. The degree of blur of the thirteen fingerprints was almost the same.
The fingerprints obtained after preprocessing are all similar. It makes no sense that seven fingerprints will match and six will not match.
The only possibility is that the owners of these six fingerprints did not enter their fingerprint information in the fingerprint database.
However, even so, seven fingerprints are enough to lock four people.
The DNA analysis results have not yet come out, but Wang Hao and others are not too busy anymore. Most of the materials picked out from the basement brick joints, sewers, and wash basins have completed preprocessing.
Now just wait for the instrument to come out with the results.
In the conference room.
Lu Chuan handed seven fingerprint identification and analysis reports to Li Donglin.
At this moment, Li Donglin's eyes were as bright as a wild wolf: "Okay!"
"very good!"
Li Donglin had seen the fingerprints collected by Lu Chuan.
To be honest, he didn't have much hope for Lu Chuan.
The fingerprints were so blurry that the lines could not be seen clearly. Even if he did the identification in person when he was at his peak, there was no guarantee that it would be successful.
When Qin Yong of the Haizhou City Criminal Investigation Detachment recommended him, Li Donglin was still a little worried, thinking that he was a descendant of a high-ranking official of some family.
If he hadn't read Lu Chuan's information and knew that he had outstanding performance in several major cases, Li Donglin would not have readily agreed to Lu Chuan's joining the task force.
Looking at it now, this decision was a wise one.
Lu Chuan has such high attainments in fingerprint identification.
It seems that next time the provincial department organizes a fingerprint battle again, Lu Chuan will definitely show off his talents.
"Verify the information of these three people immediately!"
Among the four people Lu Chuan successfully compared, one of them was Chen Gang.
He is now shackled in the interrogation room.
Although this guy still hasn't said anything yet, with Wang Manli's accusation and fingerprints as evidence, even if he doesn't say anything, zero confession is enough to convict him.
"Director Li, Director Wang Hao, they are still doing DNA analysis, and the results should be available soon."
"I will conduct an inspection on Chen Gang's BMW early tomorrow morning."
Li Donglin nodded: "Chen Gang probably used that BMW to transport Goldman Sachs from Haizhou City to BZ City."
"There should be some marks left in the car."
Lu Chuan nodded, he also meant the same thing.
In this way, Chen Gang's criminal facts were further confirmed.
In addition, Lu Chuan also had to sample the vehicle tire marks.
It needs to be compared with the tire tracks collected by Lu Chuan on the Xinjian Cunshangou Township Road last week. Only after confirming the sameness can the evidence loop be closed on the situation explained by Wang Manli.
"Okay, have a good rest tonight, and we'll do the spot survey after dawn tomorrow."
Li Donglin originally had a technical background and was very familiar with the work of spot survey and trace inspection.
I know how heavy Lu Chuan's workload is today.
For a basement of more than 100 square meters, it is tiring to wipe the entire basement.
What's more, a set of footprint analysis and the identification analysis of thirteen difficult fingerprints were also done.
Lu Chuan is young and in good health. If it were him, he might not be able to endure it.
After all, Li Donglin knows very well how energy-consuming fingerprint identification analysis is.
After a silent night and a good sleep in the guest house, Lu Chuan was in high spirits the next day.
Chen Gang's BMW car has been towed from the villa to the criminal investigation detachment, right in the backyard.
After breakfast, Lu Chuan carried the inspection box to the yard, preparing to conduct an inspection of the imported BMW car.
The first task is to extract the tire marks of the vehicle.
Taking out his camera, Lu Chuan started taking pictures.
At the ravine site, Lu Chuan chose center photography and detail photography among the four photography methods of azimuth photography, overview photography, center photography and detail photography.
This time, it's no exception.
