Chapter 309: The Beauty of Fingerprints

7 grams of tea leaves were placed in the tea mug, and 97-degree boiling water was poured in. The wispy steam rose immediately.

The rolling tea leaves, like the bicycle wheels warming up in a circus, turned around in the water.

Separated by a green radish, three sticks of incense were just lit, and the spiraling smoke had a faint smell like wheat.

Separated by two more chairs, Wu Jun had a cigarette in his mouth, exhaling gray-white smoke while drawing talismans with cinnabar, and constantly muttering: "Longevity, career success."

Jiang Yuan straightened his chair with great confidence, placed the mouse, adjusted his mood, and then seriously pulled out a fingerprint—

A fingerprint from a theft case 8 years ago.

Jiang Yuan only looked at it for two seconds before he started marking the feature points with a "clatter-clatter-clatter."

Wu Jun heard the sound of his mouse clicking and walked over to look. After half a minute, he said: "If this fingerprint had a spirit in heaven, it probably wouldn't have thought that it would be taken out for comparison 8 years later."

"The main thing is that the position where this fingerprint was taken is good. It's on the inside of the door handle in the room. If it matches, the probability of locking onto the suspect will be relatively high." Jiang Yuan answered while sending the fingerprint with marked feature points to the background.

His current fingerprint level is extremely high: LV4 Qingdao-style single-finger fingerprint analysis method, LV3 Chongqing-style single-finger fingerprint analysis method, plus LV5 image enhancement. One person is worth more than three experts.

The feedback from the intranet was also very fast, listing a row of thirty fingerprints in minutes.

Jiang Yuan compared them one by one, and it didn't take long before he matched the fingerprint at the 17th position.

"This fingerprint was taken too poorly, the reflection is a bit serious, but the fingerprint comparison itself is not difficult." Jiang Yuan explained casually when he saw Wu Jun watching.

Wu Jun nodded and said: "This thief probably didn't expect that a theft case would be dug out after 8 years."

Jiang Yuan said: "Who told him to be a thief."

Saying that, Jiang Yuan pulled out the suspect's information. Sure enough, he was a habitual offender who had been in prison 3 times.

Jiang Yuan shook his head, organized the information, and then started looking for the second fingerprint to do.

The fingerprints he chose now had a difficulty level basically stuck at around LV3, which is the level that Ningtai County's own trace examination couldn't do, and Qinghe City's trace examination also found it difficult to do.

For the fingerprints of this kind of case, the practices in various places are different. When not particularly busy, they are generally accumulated in a batch and then uniformly found for a certain expert to do.

In terms of the level of Shannan Province, not every expert 8 years ago could have an LV3 level. Moreover, even with an LV3 level, doing a fingerprint of LV3 difficulty has a certain probability of success. For this kind of theft case that only gets a sentence of three, five, or seven years, the degree of attention will not be very high.

Jiang Yuan's previous strategy was about the same, but this time, he was not picky.

He even liked theft cases a bit.

Theft cases are good. The perpetrators are usually professional or semi-professional players, unlike robbers or murderers, who are often amateur players doing it for the first time. Therefore, the fingerprints of the perpetrators of theft cases often have records, which takes a key step toward matching.

For Jiang Yuan, he is not afraid of complex fingerprints; he is only afraid that there are no corresponding fingerprints in the fingerprint database.

Jiang Yuan didn't want to do homicides today. Ningtai County's homicides had been brushed by him to 20 years ago, and the remaining ones couldn't be done purely by fingerprints.

In this case, theft cases became Jiang Yuan's target for brushing orders.

Matching a fingerprint, drinking two sips of tea, and then matching the next one—in just half an hour, the second fingerprint was luckily released.

This time it was even simpler. The perpetrator happened to be in administrative detention, so they could just bring him in for interrogation.

Clatter-clatter-clatter-clatter.

Jiang Yuan clicked the mouse wildly.

His current fingerprint ability, in terms of comprehensive level, is also in the first echelon in the country. Adding a little experience, it basically approaches the top.

A fingerprint expert of this level, theoretically, should be locked in a room, brushing homicide fingerprints all day long. Wanting to catch one to do robbery fingerprints must be that kind of high-public-opinion case where even a dog was robbed.

Theft cases occurring in ordinary small counties really never thought that they would be compared by a fingerprint expert of this level.

Some of the unsolved cases here might even be because there were too many trace examination cases that year, and they were left over because they couldn't be done—like Wang Zhong's LV0.8 trace examination, comparing a fingerprint of an ordinary theft case might also take half a day, plus holding meetings, going on business trips, and doing chores for the big bosses, when busy, one couldn't do two cases a day.

Jiang Yuan is different. He concentrates his attention, can mark the feature points in one round, and in cases where luck is a bit worse, he can mark them in two or three rounds, which is an hour's time.

Therefore, after doing it for an afternoon, Jiang Yuan had already matched 4 fingerprints.

The efficiency is not as good as when he participated in the battle at the provincial department. At that time, focusing on doing fingerprints was when he was in the best state, and his concentration was also high.

Now sitting in the office, the efficiency is slightly slower, which is also normal.

Even so, when Jiang Yuan called Huang Qiangmin, the latter was still a little surprised.

"That's 4 cases already?" Huang Qiangmin held the phone, and was a bit rusty in expressing surprise.

"4 theft cases." Jiang Yuan emphasized.

"Unsolved theft cases are also unsolved cases! You solved cases that others couldn't solve, this is strength. Alright, I'll go notify them to catch people." Huang Qiangmin casually patted a few rainbows.

Huang Qiangmin even had a little bit of regret. During this period, if he hadn't sold Jiang Yuan to the Changyang City Criminal Police Detachment, who knows how many more cases Ningtai County would have solved.

Huang Qiangmin looked up at the small building of the criminal police detachment that was laying the foundation in front, and couldn't help but feel a pity. If the level of the police station were higher and the funding were more sufficient, keeping Jiang Yuan to do unsolved cases, it wouldn't take too long, and it is estimated that hundreds of families could be reunited.

Huang Qiangmin directly dispatched Wu Junhao's First Squadron.

This flat-pushing squadron's workload has not been large recently, the opportunities to catch people are few, small cases are solved by themselves, and there are no big cases.

Huang Qiangmin was also worried about wasting them, so he gave them the task at the first opportunity.

Needless to say, what these four thieves will face will be a big cleaning by more than a dozen strong men.

Jiang Yuan got off work on time and went home to loosen the soil for the winter melon as usual.

At the same time, the Criminal Police Detachment of Ningtai County became strangely busy.

Although mosquitoes are small, they are meat. During this period of good rest, the criminal police ran around the county like wolves and tigers, and some were even sent to other places to pursue and seize.

Jiang Yuan did fingerprints for two days before seeing his task progress rise.

1/x, 2/x, 3/x...

This shows that it is recognized as a case only when someone is caught.

Then Jiang Yuan was not in a hurry to cash it in, letting the Ning County criminal police catch people, and he returned to Changyang City first.

The city bureau's year-end meeting was imminent.

On the day Jiang Yuan reported, he was caught and thrown into the rehearsal lineup. ===== CHAPTER 310 =====