Chapter 83: Identifying Identity

Changyang City.

The sun is high in the sky, the traffic is rolling, smooth black silk wanders the streets, and tender long white legs swing back and forth.

Jiang Yuan opened his eyes, climbed out of the hard board bed, waited for a few seconds, and realized that he had already moved into the Provincial Department's guesthouse.

Pulling open the curtains, outside was a piece of lush green plants, showing a beautiful picture of being willing to water.

Jiang Yuan stretched, folded the quilt slowly, and then washed and dressed at an even slower speed.

Arriving in Changyang City and participating in the "Provincial Fingerprint Information Case-Solving Battle" for two days, Jiang Yuan already knew that the laziness in the morning was the most relaxed moment of the day, and almost the only relaxed moment.

Once he walked out of this door, he had to keep his chest out and head high to maintain police appearance and discipline. As for the office, it was another kind of terrifying casualness.

You can eat casually, drink casually, wear casually, and shout casually, as long as you can match the fingerprints, that kind of casualness.

More than 30 trace inspectors from all over the province gathered together, rolling to death. Each person looking at 3,000 fingerprints a day is considered to have reached the average line.

Police officer Zhu Huanguang from Changyang City is the province's fingerprint rolling king, usually looking at more than 6,000 fingerprints a day, which sounds incredible to laypeople.

In fact, Zhu Huanguang can look at fingerprints for 14 hours a day, averaging 500 fingerprints per hour, equivalent to looking at 8 fingerprints per minute, and each fingerprint only has about 8 seconds of observation time.

And under this intensity, he has already solved 4 cases in other cities and counties.

According to tradition, or rather, according to the development law of normal fingerprint case-solving battles, as time goes by, the number of cases solved must be more and more. Because fingerprint experts' familiarity with fingerprints will slowly increase, the later it is, the more cases will be solved.

This is also the reason why fingerprint case-solving battles are constantly being promoted.

In the past, fingerprint experts were in various units, not only fighting on their own, but also doing some miscellaneous tasks that ordinary colleagues in the unit could do from time to time—such as attending meetings. They could not concentrate on fingerprint comparison.

Fingerprint battles are different.

During the fingerprint battle, the Provincial Department or the Ministry covers food and lodging, round-trip travel expenses, and business trip subsidies, pulling fingerprint experts from all over, having nothing else to do, constantly comparing fingerprints every day, thereby concentrating on accumulating familiarity with fingerprints, constantly increasing the probability of solving cases...

Fingerprint experts are also very happy. They are all people in their 30s and 40s and above, sleeping in dormitories, eating in canteens, not having to worry about whether their wives are happy, not having to worry about whether their children's homework is written, not having to worry about whether their parents are quarreling, and even less having to look at the leader's face and colleagues' little thoughts. Every day, they face dozens of familiar yet strange faces, hundreds of familiar yet strange fingerprints, and the "Cold Case Solving Ranking List" on the wall. They don't know how comfortable their lives are.

And such a mutually beneficial thing, the reason why there is a time limit, is mainly because the Provincial Department is worried about really tiring the experts to death.

Of course, the experts' state and case-solving efficiency are also different. For example, Jiang Yuan, on the "Cold Case Solving Ranking List" hanging in the office, the number of cold cases solved behind Jiang Yuan's name is clearly 0, tied for last place with more than ten other trace inspectors.

However, Jiang Yuan didn't seem to be in a hurry. When he arrived at the office, he also made a cup of tea for himself first, and then looked around.

Comrade Zhu Huanguang was rolling, and the fingerprints on the computer screen were flashing by. The female comrade next to him was applying eye drops to herself. The fat colleague next to her was eating a big pancake, and the screen in front of him was also flashing fingerprints.

To tell the truth, the state of this office looks like a high school entrance exam study room, the super-aged kind.

"Little Jiang, you haven't broken zero yet, aren't you in a hurry?" The uncle at the next workstation looked over with a smile.

He had rubbed half a box of Zhonghua cigarettes from Jiang Yuan yesterday and became a sworn friend.

Jiang Yuan smiled, turned his head and said: "Aren't you also not broken zero?"

"I'm used to it." The uncle smiled and said: "Wait for you for a while."

"Then I'll hurry up and chase two steps." Jiang Yuan completed the daily courtesy work, turned around and began to stare at the screen.

Soon, in the study room... no, it was the "Provincial Fingerprint Information Case-Solving Battle" office, only the sound of keyboards and mice remained.

Jiang Yuan leaned back against the chair, also staring at the computer screen, drawing feature points once, and looking at many fingerprints.

Fingerprint comparison during fingerprint battles is completely different from daily fingerprint comparison. First of all, the fingerprints that can be selected for the fingerprint battle are all selected by various places, with quantity limits, quota limits, and entry and exit mechanisms.

Simply put, small cases are not wanted, those without time precipitation are not wanted, and those that have not been matched multiple times by trace inspection themselves are not wanted.

Therefore, the fingerprints that enter the fingerprint battle are either fingerprints of major and important cases, or difficult fingerprints with high difficulty. Some fingerprints may only be one-fifth or even one-sixth of normal fingerprints, and they still have to try to match.

For these difficult fingerprints, believing in the fingerprint matching system is meaningless.

This kind of thing that ordinary trace inspection can do does not need to spend effort to fill out various reports, and then submit them to experts for processing.

Precisely because of this, the fingerprint experts in the office, when facing difficult fingerprints at this time, directly put the candidate fingerprint quantity at 200 or even 300 or more.

It is equivalent to putting the role of people, or rather, the workload of people, to the maximum.

The fingerprints that experts slapped past, which might have been screened away by software in the past, are now all passed through by manpower, and they must be the highest-level manpower in trace identification.

But without doing so, using software systems normally, most cold cases are impossible to match.

This is also one of the huge differences between criminal investigation technology and ordinary technology. Ordinary technology may pay more attention to cost-effectiveness and be willing to give up part of the functionality to ensure cost and benefit.

Criminal investigation technology also requires cost, and also requires input and output, but in some cases, criminal investigation is willing to spend millions, even at the cost of solving the case.

This logical conflict has troubled experts from the beginning.

However, this trouble did not affect Jiang Yuan.

He just wanted to simply match fingerprints, and he did exactly that.

At this time, a fingerprint that looked like a parallelogram slid past Jiang Yuan's eyes.

In Jiang Yuan's mind, a fingerprint he saw yesterday immediately appeared.

The fingerprint seen yesterday had a similar parallelogram, which was also a very rare fingerprint form, held by a very rare perverted rapist.

Although it is said that the fingerprint that just brushed past has no connection with the fingerprint seen yesterday on the software system—it appeared because Jiang Yuan was comparing a robbery case.

However, the first thing Jiang Yuan thought of was to combine the two and manually compare them.

The two fingerprints were both very blurry.

Although to the human eye, both have very obvious parallelogram shape structures, the software system obviously doesn't think so. Looking at the grooves, points, warps, etc. inside, the overlap degree of the two is less than 30%.

But the trend of the lines is consistent.

It shows that one of the fingerprints is just blurry at the key point, and may have serious deformation, and at the same time, the other fingerprint may also be the same.

Jiang Yuan thought while comparing, and after confirming again and again, he clicked the right mouse button on the right side to make a mark: Identify Identity.

In every corner of the office, "ding-dong" sounds rang out one after another.

Experts present who did not turn off the reminders all learned a new piece of news from this: someone had identified a fingerprint as the same. ===== CHAPTER 84 =====