Chapter 1325

Come here; it means that the high-definition spectral imaging instrument has been sent, and it is right to collect more fingerprints.

One sheep is also grazing, ten sheep are also grazing; it means that sending one criminal to prison is sending, and sending ten criminals to prison is also sending.

People are dead; it means that a victim is dead, and the murderer should not live.

Liu Zhuangshi organized a team in one breath, each person carried two evidence boxes, came to the conference room, and put out a look of being chosen by others.

Huang Qiangmin brought people, did the transfer station familiarly, and said: "Branch Captain Liu, it's almost off-work time. Would you like to pick a few important cases first, let's see if there are suitable ones, and Jiang Yuan will see if it is good to break through."

Liu Zhuangshi smiled first, not polite, he held back the "what to eat" that was about to blurt out.

It is a pity that Jiang Yuan is not his. If Jiang Yuan were his person, he would have to—of course, he has to use it sparingly, but if he were his person, now there is a chance to break a homicide case, then what is eating? Eating in shit, and paying for testing yourself is not an adjective.

In order to use Jiang Yuan for a longer time, Liu Zhuangshi used a light and teasing tone like a scumbag: "Why don't you get off work first, let Director Jiang have a good rest, and then work more efficiently after resting."

"That's not necessary." Huang Qiangmin didn't need to ask Jiang Yuan, and answered on his behalf: "Isn't there a detachment sent out on your side, then there are several detachments waiting for orders. If we have a breakthrough in a case now, you immediately send personnel. If it is tomorrow morning, it is almost a preliminary conclusion, which is better to break through, right?"

Liu Zhuangshi's smile was hard to maintain. It turned out that Jiang Yuan was going to get off work, and his own team was going to work overtime. It turned out that he thought "I am a scumbag", but in the other party's eyes, he was just a boiling sheep?

In order to manage emotions, Liu Zhuangshi couldn't help but pat his face, secretly warning himself: Hold on, boiling sheep is boiling sheep, as long as the goal is achieved, it is victory!

Then, Liu Zhuangshi said solemnly: "Political Commissar Huang is right, I thought wrong."

"No need, no need." Huang Qiangmin was shocked by Liu Zhuangshi's self-slapping action. He had seen so many criminal police team leaders, and it was rare to see such unstable emotions.

Huang Qiangmin hurriedly pulled Liu Zhuangshi's hand and said: "You pick the case first, let's talk about other things later. We are not staying for a day or two. Tonight, you should investigate the case, and tomorrow if there is a breakthrough, or even a big breakthrough, that is the best. We continue to the next case. If it can't work, we will continue to ponder, you say right."

"Okay, okay... thank you, thank you..." Liu Zhuangshi pulled Huang Qiangmin's hand back, and the two looked like intimate friends who could sleep together.

Huang Qiangmin patted Liu Zhuangshi's hand lightly again and said: "We also want to thank you. Jiang Yuan was inspired by your case to think of applying high-definition spectral imaging instruments to collect the three-level features of fingerprints. High-definition spectral imaging instruments can get huge applications in this regard, which should be beneficial to the entire criminal investigation system..."

"That thing is from the provincial department." Liu Zhuangshi lowered his voice. He knew what Huang Qiangmin meant, but he couldn't send out things he didn't own.

"You can use this technology, you can't always buy the provincial department's."

"It costs 500,000." Liu Zhuangshi smiled and trembled.

"Don't buy such a high configuration. Of course, one is not enough. Your criminal police detachment is so big..."

"Our financial appropriation this year..."

"Appropriation is a number. Some get more, some get less. Why is that? It must be because the performance is good. If the performance is not good, you may not be able to get this year's appropriation next year. Besides, companies that sell instrument equipment don't say that they must pay the full amount. Some don't even need a deposit. Sign a word, and people will handle it for you properly..."

"We may not have so much next year..."

"Who said it must be returned next year? Besides, you can slowly return it in a few years..." Huang Qiangmin looked at Liu Zhuangshi, just like looking at a newborn licking dog, who didn't even know how to use financial tools to get things done, and didn't understand basic grassroots experience at all. Anyone who knows a little bit should know that in the emotion of installment buying mobile phones, the time of installment is greater than the time of mobile phones, which is greater than the time of emotion.

"But... but..." Liu Zhuangshi muttered to himself, he had no experience in this regard, where should he say what to do.

Jiang Yuan finally chose an accidental injury case.

The case is quite simple. It is nothing more than a conflict between the two sides when choosing a camping site by the river. One side suffered a loss. One person's knee joint was cracked, the cruciate ligament was completely broken, and it was assessed as a serious injury of the second degree. One person's lip was missing a piece, and 6 teeth were knocked out, a minor injury of the first degree.

At this step, if the other party chooses to surrender as usual, then there is nothing for the Criminal Police Detachment to do. It may be handled by the local police station, at most the district-level criminal police team.

However, the criminal suspect chose to run away, which turned into a major case that might be sentenced to more than 10 years, and needed the Criminal Police Detachment of the Anwan City Bureau to investigate.

But because it happened in the wild, there was no help from surveillance, and only the victim's description, the investigation fell into a deadlock.

This case is also one of the major cases of the Anwan City Bureau this year. Regardless of whether Jiang Yuan comes or not, the Anwan City Bureau must concentrate its efforts to investigate.

Of course, if Jiang Yuan can handle this case, the pressure on the Anwan City Bureau will be greatly reduced.

Liu Zhuangshi sent the victim's jacket. This time it was an Adidas hoodie, with a long blood belt dripping from the collar, but because it was first contact, then beaten, then bleeding, the blood drowned out the possible fingerprints.

And the DNA extracted from the blood cannot be matched, which is not strange.

The perfection of the domestic DNA database is two grades lower than the fingerprint database.

However, collecting these fingerprints is not difficult for Jiang Yuan.

Especially with the high-definition spectral imaging instrument, Jiang Yuan scanned a piece of clothing, took 12 residual fingerprints in one breath, and then marked feature points separately, which is the second-level features of fingerprints.

Same as before, if it can be matched, send someone to see the suspect, take his three-level features of fingerprints, and you can further determine his identity.

The reason for choosing clothes is also because the material has a greater impact on fingerprint collection. Just like fingerprints on a wooden table or metal desktop, if you teach a primary school child the method, he can take complete fingerprints, but if you change it to fingerprints on a round table leg, many entry-level criminal science technicians cannot take them well.

And fingerprints on objects like coins, even senior criminal science technicians cannot necessarily take usable fingerprints.

According to the material, the difficulty of collecting fingerprints is also high and low. This jacket is considered a relatively high difficulty, so Jiang Yuan also has a probability of collecting fingerprints that have not been collected before.

A total of 12 fingerprints, belonging to 8 different fingers.

Jiang Yuan focused his attention on several fingerprints on the abdomen. It is said that a suspect once slapped here.

Finally, Jiang Yuan selected two residual fingerprints and put them into the scope of this fingerprint battle, allowing fingerprint experts who smoke or don't smoke to participate together.

Soon, after Jiang Yuan processed the three-level features of the fingerprints, he quickly deleted one of the fingerprints.

Li Zemin watched the whole process, and when Jiang Yuan finished everything, he asked in a low voice: "Why delete one fingerprint?"

"Because it is a female fingerprint, there are no women participating in the fight at the scene. Especially the girl on the other side, didn't touch the victim's side." Jiang Yuan answered.

"Don't help even if you fight?" Li Zemin said and patted his head again: "It's not this, how do you know that the deleted one is a female fingerprint, can fingerprints see men and women?"

"Yes. Look at the density of sweat pores. The average density of female sweat pores is 13 per square millimeter, and the average density of male sweat pores is 9 per square millimeter, which means that the female sweat pore density is 1.5 times that of males. Therefore, you can first delete the female fingerprints at the scene and concentrate your efforts on processing the other male suspect's fingerprints." Jiang Yuan explained to Li Zemin while doing fingerprints.

The fingerprint experts who still stayed in the conference room, those who heard Jiang Yuan's explanation, all laughed, and lit cigarettes one after another.