Chapter 1359

Since we're already here; they said the high-resolution spectral imaging device has already been delivered, so collecting a few more fingerprints is only appropriate.

One sheep is released, ten sheep are released; they said sending one suspect to prison is sending, sending ten suspects to prison is also sending.

The person is dead; they said one victim died, the perpetrator shouldn't live either.

Liu Zhuangshi organized a team in one breath, each person moving two evidence boxes, arriving at the meeting room, and presenting a posture of letting people choose.

Huang Qiongmin led the people, familiar with the route, set up a transit station, and said: "Chief Liu, it's almost time to get off work; you either pick a few important cases first, let's see if there's anything suitable, Jiang Yuan here can check if there's a chance to break through."

Liu Zhuangshi first smiled, not out of politeness, he was suppressing the words about to blurt out: "What's there to eat?"

It's a pity Jiang Yuan isn't his; if Jiang Yuan were his man, he would definitely—of course, he'd also have to use him sparingly, but if he were his man, now there's an opportunity to solve a murder case, what's eating? Eating in excrement, paying out of pocket for testing isn't even an adjective.

To be able to use Jiang Yuan as long as possible, Liu Zhuangshi acted like a scoundrel, using a light and teasing tone: "Why not just clock off now, let Director Jiang rest properly, after resting well, work efficiency will be higher."

"That's not necessary either." Huang Qiongmin didn't need to ask Jiang Yuan, he answered on his behalf: "You guys just dispatched a large unit, so there are still several large units on standby. If we have a breakthrough in a case now, you immediately dispatch personnel; if we wait until tomorrow morning, we'll basically have a preliminary conclusion, which is better for further breakthroughs, right?"

Liu Zhuangshi's smile barely held. It turns out Jiang Yuan wants to get off work, while our team is supposed to work overnight. Originally, I thought "I'm a scoundrel," but in the other party's eyes, I'm actually just a Boiling Goat?

To manage his emotions, Liu Zhuangshi couldn't help but pat his own face, silently warning himself: Hold on, Boiling Goat is Boiling Goat, as long as the goal is achieved, it's victory!

Then Liu Zhuangshi solemnly said: "What Director Huang said is correct, I was the one who thought wrong."

"Not at all, not at all." Huang Qiongmin was stunned by Liu Zhuangshi's self-slap; having seen so many criminal police team leaders, emotional instability like this is still rare.

Huang Qiongmin quickly grabbed Liu Zhuangshi's hand and said: "You first pick the case, other matters we'll discuss later; we're not staying just one or two days. Tonight, you should investigate the case, if there's a breakthrough tomorrow, even a major one, that would be best; then we continue with the next case. If not, we'll keep pondering, you agree, right?"

"Okay okay…… thank you thank you……" Liu Zhuangshi held Huang Qiongmin's hand with his backhand, the two behaving like close friends who could sleep side by side.

Huang Qiongmin again patted Liu Zhuangshi's hand lightly and said: "We also want to thank you; Jiang Yuan was inspired by your cases to think of applying the high-resolution spectral imaging device to collect tertiary fingerprint features, and the device can achieve enormous application in this area, which should be beneficial to the entire criminal investigation system……"

"That thing is from the provincial department." Liu Zhuangshi lowered his voice. He knew Huang Qiongmin's meaning, but also couldn't give away something he didn't possess.

"You can use this technology, but you can't keep buying from the provincial department all the time."

"500,000." Liu Zhuangshi laughed until the corners of his mouth twitched.

"No need to buy such a high-end configuration. Of course, one unit definitely isn't enough, you guys with such a large criminal police detachment……"

"Our annual fiscal allocation……"

"Fiscal allocation is just a number; some allocate more, some less, and there's a reason for that—partly because performance matters. Poor performers might not get next year's allocation, and besides, companies selling instrument equipment don't necessarily require full payment; some don't even need a deposit, just sign a contract and they'll handle everything properly……"

"We might not even have that much next year……"

"Who said next year must definitely repay? Besides, repayment can be spread over several years gradually……" Huang Qiongmin looked at Liu Zhuangshi, as if looking at a newborn sycophant, still thinking about accomplishing things with limited funds, not knowing how to use financial tools; anyone with basic grassroots experience should know that in the emotion of installment phone buying, the installment period exceeds the phone's lifespan, which exceeds emotional duration.

"But…… but……" Liu Zhuangshi muttered, lacking experience in this area, not knowing what to say or do.

……

Jiang Yuan ultimately chose an accidental injury case.

The case is quite simple: nothing more than when choosing a campsite by the river, both sides clashed, one side suffered loss, one had a knee joint shattered, cruciate ligaments completely torn, assessed as Grade II serious injury, one had a lip chunk knocked out, six teeth knocked out, assessed as Grade I minor injury.

At this point, if the other party had chosen to surrender as usual, then the criminal police detachment would have nothing to do with it; possibly the local police station, at most a district-level criminal police team, would have handled the case.

However, the suspect chose to flee, turning this into a potentially over-10-year sentence major case, requiring the Anwan Municipal Bureau's criminal police detachment to investigate.

But because it occurred in the wild, lacking surveillance help, only relying on the victim's description, the investigation actually hit a deadlock.

This case is also one of the Anwan Municipal Bureau's major cases this year; regardless of whether Jiang Yuan comes or not, the bureau will concentrate forces to investigate it.

Of course, if Jiang Yuan can solve this case, the pressure on the Anwan Municipal Bureau will greatly decrease.

Liu Zhuangshi delivered the victim's jacket; this time it was an Adidas hoodie, with a long bloodstain dripping from the collar downward, but because it was first contacted, then beaten, then bled, so the blood obscured any possible fingerprints.

And extracting DNA from the blood couldn't match, which isn't strange either.

The completeness of the national DNA database is two or more levels below that of the fingerprint database.

However, collecting these fingerprints isn't difficult for Jiang Yuan.

Especially with the high-resolution spectral imaging device, Jiang Yuan scanned one garment and in one go obtained 12 incomplete fingerprints, then marked feature points respectively, i. e., secondary fingerprint features.

As before, if they can be matched, then dispatch personnel to see the suspect, take their tertiary fingerprint features, and further confirm identity.

The reason for choosing clothing is also because material significantly affects fingerprint collection. Just like fingerprints on a wooden table or metal tabletop, teach a primary school child the method, and they can completely lift the fingerprints; but if changed to fingerprints on a round table leg, many entry-level forensic technicians also fail to lift them well.

And like fingerprints on coins or similar items, even experienced forensic technicians might not be able to lift usable fingerprints.

Depending on material, clothing has varying difficulty for fingerprint collection; this hoodie counts as a high-difficulty type, so Jiang Yuan thus has a probability of collecting fingerprints not previously obtained.

Total 12 fingerprints, belonging to 8 different fingers.

Jiang Yuan focused on several fingerprints on the abdomen, allegedly a suspect once struck there with a palm.

Finally, Jiang Yuan selected two incomplete fingerprints and placed them within the scope of this fingerprint showdown, allowing fingerprint experts who smoke or don't smoke to participate together.

Soon, after Jiang Yuan processed the tertiary features of the fingerprints, he quickly deleted one of them.

Li Zemin watched the entire process; after Jiang Yuan finished everything, he quietly asked: "Why delete one fingerprint?"

"Because it's a female fingerprint, and there were no females present at the fight scene. Especially the other party's female, who didn't touch the victim's side." Jiang Yuan answered.

"They fought and still didn't help?" Li Zemin said while patting his head: "That's not what I meant; how do you know the deleted one is a female fingerprint, can fingerprints tell gender?"

"Yes. By looking at sweat pore density. Female sweat pore average density is 13 per square millimeter, male's is 9 per square millimeter, meaning female density is 1.5 times male's. So, we can first eliminate female fingerprints from the scene, concentrate force on processing the other male suspect's fingerprint." Jiang Yuan explained while working on the fingerprints.

The fingerprint experts still in the meeting room, those who heard Jiang Yuan's explanation, laughed out loud and successively lit up cigarettes.