Chapter 193: Chapter 193: Breaking Records

Comparison failed!

Still a failure in comparison.

Four big red characters on the screen seemed to be silently mocking Lu Chuan’s afternoon of efforts.

For the second fingerprint identification analysis, Lu Chuan adopted a different approach.

Fragmentation and distinction of the entire fingerprint, this is a rare processing method.

Fragmenting fingerprints demands extremely high fingerprint identification and analysis capabilities from the criminal police, especially as Lu Chuan divided one fingerprint into four parts, which required an overall analytical approach for each part of the fingerprint.

When dealing with any part, it must be connected to the other three parts of the fingerprint.

Generally speaking, more experienced forensic experts split fingerprints into two parts when using the fragmentation method for identification and analysis.

This approach is relatively less challenging.

It is rare to see someone like Lu Chuan, who splits it into four parts.

However, even so, Lu Chuan, with advanced fingerprint identification and analysis skills, remains confident in his ability to perform the analysis well.

Ultimately, the result is still a failed comparison.

Lu Chuan pulled out the fingerprint and placed the previously pre-processed fingerprint aside as well.

The same fingerprint, subjected to two different identification and analysis methods, ultimately produced the result…

Essentially the same.

The fingerprints produced by two completely different methods are the same, but the system comparison still fails.

This indicates that it’s more likely that the fingerprint’s owner hasn’t left a sample in the system.

Scratching his head, Lu Chuan sighed.

This is how work is, especially fingerprint identification analysis.

Over the past six months, Lu Chuan has possibly identified thousands of fingerprints.

Some of these fingerprints are extremely difficult to identify, while others are not.

However, fingerprint identification and analysis are not only related to the difficulty of pre-processing analysis.

In some cases, the fingerprints are very clear, but without the target suspect’s sample in the system, matching still fails.

Just like the fingerprints Lu Chuan identified during the fingerprint campaign organized by the Haizhou City Public Security Bureau, if the suspect’s fingerprint sample isn’t input into the system, no one can identify it.

Rubbing his slightly sore eyes, Lu Chuan decided to abandon this fingerprint.

There’s no choice. Without the suspect’s fingerprint sample in the fingerprint database, continuing won’t yield a result.

Checking the time, it was already past nine in the evening.

Most people in the meeting room were still battling on.

“Overtime today?”

Zhao Zhigao patted Lu Chuan’s shoulder: “Didn’t succeed with the fingerprint just now?”

Zhao Zhigao, sitting next to Lu Chuan, is well aware of what fingerprint Lu Chuan is working on.

Lu Chuan nodded helplessly: “I tried two different methods, but still couldn’t match it.”

“That happens a lot, come, take a break first.”

Lu Chuan nodded, and the two walked out of the meeting room: “I’ll work on one more fingerprint later, then I’ll call it a day.”

“Alright, I’ll match one more myself and then head back.”

The two smoked a couple of cigarettes and chatted about matters concerning the Tianzhou City Criminal Investigation Team.

“The other party isn’t saying anything, the case is hard to handle.”

Even though the serial killer case involving the murder of taxi drivers was cracked, the interrogation was going poorly.

“Didn’t they bring in a psychological expert?”

Though Lu Chuan had never done pre-trial work and lacked experience in this area, he had heard about it.

Most serial killers possess uncommon psychological traits.

Such individuals can’t be understood using ordinary logic.

Lu Chuan heard about some cases in university where dealing with such criminal suspects required the involvement of psychological experts.

“I hear a psychological expert has already been brought in, let’s see how it goes tonight.”

When they returned to the meeting room, most of the experts were still there.

Lu Chuan clicked on the recently updated leaderboard on the computer screen; his rank had dropped from first to second place.

Tian Rong matched another fingerprint, scoring six points.

Adding it to the original eighteen points, a total of twenty-four points, surpassing Lu Chuan by four points to become first on the leaderboard.

The number of matched cases also increased from four to five.

Lu Chuan’s score remained unchanged, with two cases, scoring twenty points.

Casually closing the leaderboard, Lu Chuan opened the fingerprint campaign database and picked a case, still targeting a homicide!

This time, Lu Chuan selected a smudged fingerprint.

After skimming through the basic details of the case, it pertained to an incident ten years ago at Meishan Mine.

Meishan is the largest coal mining base in the province, developed over fifty years ago, still boasting significant coal production today.

Ten years ago, miners underground discovered a coworker who had been missing for three days within a mining tunnel.

The police at the time found the murder weapon deep within the mine, collecting a partial fingerprint from it.

Compared to the narrow fingerprint Lu Chuan dealt with in the afternoon, this fingerprint’s pre-processing could not depend purely on visual analysis.

The familiar sound of keyboard clacking resumed, and people around glanced up, then paid no further mind.

Lu Chuan had been tapping away at the keyboard all morning; initially somewhat noisy, it had become commonplace over time.

What’s more, it was this tapping that solved two homicides.

In the afternoon, when Lu Chuan suddenly went silent, everyone was a bit taken aback.

A smudged fingerprint requires mathematical methods for processing and analysis.

First, image layering, followed by image enhancement, and then sharpening, noise reduction, and other operations.

After more than an hour, nearing eleven o’clock, the preprocessing result for the smudged fingerprint was finally completed.

Stretching lazily, Lu Chuan placed the processed fingerprint into the fingerprint matching system.

Zhao Zhigao also completed analyzing a fingerprint.

The result, unfortunately but not unexpectedly, was no successful match.

“Analyzed another one?”

Handing Lu Chuan a cigarette, Zhao Zhigao chuckled: “It’s alright, today I worked on seven or eight fingerprints, only hit one, in our line, it’s normal to…”

Ding!

Before Zhao Zhigao could finish, the notification for completed fingerprint comparison rang.

“Comparison successful!”

The four characters shone like a sun on the screen.

“Suc…ceeded?”

Zhao Zhigao knew, the cases Lu Chuan tackled were all homicides.

Homicides!

Those are homicides!

“The motto and requirement for solving homicides weren’t just proposed now.”

It has been the standard ten or twenty years ago.

In a vast province, with nearly a hundred million people, over ten cities, and more than fifty counties, how many cases happen each year, how many homicides?

In individual districts and counties, there might just be one or two homicides annually, but on a provincial scale, there are over a hundred each year.

With so many cases over the years, only eighty-three unresolved homicide cases have entered the fingerprint campaign database.

Just imagine how many people have studied these cases.

Yet, the cases remain unsolved, highlighting the immense difficulty in solving them.

And Lu Chuan, in one day, matched three homicide cases in a row!

Source: Webnovel.com, updated by NovelKeep