Chapter 38: Not Arrested

Sitting upright, looking straight ahead, and placing Xiao Wang next to him, Jiang Yuan began to mark the feature points of the fingerprint he had just received.

Xiao Wang looked even more serious.

There is a saying in the grassroots police community that police officers do not work as criminal police, and criminal police do not work as technical criminal police. Technical criminal police refer to the trace inspection, on-site investigation, drug inspection, etc. in the criminal department squadron.

The reason is that technical criminal police often have to act as ordinary criminal police. They have to go to the scene when they should go to the scene, and run errands when they should run errands. When there are not enough people to catch criminals, the first to be arrested are technical police officers.

Xiao Wang used to like to say this sentence, but after Jiang Yuan came, Comrade Xiao Wang unexpectedly discovered a phenomenon.

Since Jiang Yuan started to do fingerprints, he has never been "arrested".

The work of the criminal police team is endless, especially when there is a murder case. The captain can follow everyone for three days and three nights without sleep, and ordinary police officers can take a nap and laugh in their dreams.

However, Jiang Yuan sat in the office unshakably. Even Xiao Wang, as long as he followed Jiang Yuan, was never transferred.

What surprised Xiao Wang even more was that no leader at any level had ever issued an order for this, but whether it was within the Criminal Division Squadron or other criminal police squadrons, even the few who usually liked to steal, they all seemed to have some tacit understanding and had never transferred Jiang Yuan for ordinary work.

In fact, Xiao Wang knew what was going on without anyone telling him.

Because Jiang Yuan could directly lock the suspect with fingerprints.

With this ability, the captain of any squadron would inevitably ask to come to him in the future, and even those who didn't care about human relationships would be embarrassed to take Jiang Yuan away.

In the police force, the level has its place to reflect the level, and the age and qualifications have their place to reflect the age and qualifications, but at the root, the business that everyone despises the most is the truth that everyone cannot get rid of the most.

In a word, you solve the case, I solve the case, who can be more noble than who?

Naturally, those who can solve the case are more noble than those who can't.

Xiao Wang wants to be a noble man.

Xiao Wang sat upright, staring at Jiang Yuan's operation.

He watched Jiang Yuan draw feature points, and he drew on his legs, trying to understand Jiang Yuan's thinking logic.

Fingerprint matching, in many cases, is a comparison of thinking logic.

A breakpoint may be a feature point, or it may be a noise point in the image, or an incomplete part when printing. How to judge it in the end is a great test of thinking.

It doesn't matter how to do simple fingerprints, but when encountering difficult fingerprints, you must first build enough content in your mind.

"Run it and see." Just as Xiao Wang's thoughts were surging, Jiang Yuan finished the marking and threw it to the software for matching. He also saw Xiao Wang watching, so he said it specially.

Xiao Wang was stunned and said, "Have you finished marking?"

"Well, I marked more than a dozen, which should be enough."

"This is easier than the arson case." Xiao Wang said casually. From his point of view, today's fingerprints and the fingerprints in the arson case are both super difficult. From the perspective of learning, Xiao Wang was still planning to study with Jiang Yuan for another week.

However, Jiang Yuan completed the first round of marking in less than half an hour.

At this time, Jiang Yuan laughed and said, "That's for sure. The fingerprints in the arson case may have been burned, so many details are not clear. The extraction is not very good."

The latter sentence is his real complaint. The conditions of the county bureau are not good. It's not that the conditions in one area are not good, but that the conditions in all areas are not good.

The computer in the unit made a creaking sound.

Xiao Wang's focus was not here. He recalled the details of Jiang Yuan's marking of feature points that he had just seen. He felt that his mind was full of confusion, as if he had just taken a math test. He had clearly finished all the multiple-choice questions, but when he checked the questions with his classmates, he couldn't remember his answers.

Jiang Yuan checked the fingerprints one by one according to the list given by the software.

Xiao Wang sorted out his mood, followed Jiang Yuan's steps, and read slowly.

Before he saw half of it, Jiang Yuan swiped and changed another fingerprint.

Obviously, the previous fingerprint has been ruled out.

Xiao Wang frowned, and then followed Jiang Yuan to look at the second fingerprint.

Less than halfway, he stopped.

Continued, and stopped again.

Xiao Wang rubbed his eyes, only to feel his eyes sore and his heart tired.

This feeling is like when he was in school, listening to the teacher's examination papers, very seriously, halfway through, he heard the teacher say "

Xiao Wang raised his head again, his eyes were firm, his expression was strong - as an adult, and a glorious people's policeman, Xiao Wang asked himself that he had become extremely powerful!

"I got it right." Jiang Yuan checked the sixth fingerprint again, and couldn't help but patted the table, stood up and stretched.

Xiao Wang's mouth couldn't help but bloom a smile, blooming little by little: "I got it right... That's great."

Jiang Yuan breathed a sigh of relief.

Fortunately, the person who left the fingerprint was a habitual offender, otherwise, with only this one clue, it would be really difficult to lock the other party.

"Cai Bin... This person has been detained three times for stealing electric bikes. "Jiang Yuan glanced at the records and was quite surprised: "He has been caught three times, and the method of stealing electric bikes is still violent unlocking. There is no improvement at all."

"Will he upgrade to stealing motorcycles after making progress?" Wu Jun heard that the fingerprints matched, and came over to take a look, saying: "This kind of person will upgrade his crime and is more likely to be a gang criminal. Especially after being in prison, it is more likely to be like this."

Jiang Yuan recalled the video he had seen and said: "He doesn't look like a gang criminal. He always steals a car and leaves. The value of the stolen car is not necessarily high, and there is no accomplice to pick him up..."

"Maybe no gang wants him." Wu Jun interrupted Jiang Yuan calmly.

Xiao Wang glanced at the computer screen and the photo of the suspect with inexplicable sympathy, and slowly said: "If it weren't for Jiang Yuan, no one would have arrested him. The case value is too low, and there are few clues."

Jiang Yuan just thought he was complimenting him, and called Wei Zhenguo and Mu Zhiyang. I don't know how long it will take to queue up for DNA tests on cigarette butts, so I'll catch one first.