Chapter 1354: New Technology

Eyes are the tastiest part of an animal's body, but they are more suitable for locals.

Just like in the northwest, many people find fish eyes disgusting yet think boiled lamb eyes are incredibly delicious; in the southeast, many people find fish eyes uniquely flavorful but completely cannot accept lamb eyes.

Similar cases include pig eyes and cow eyes, which differ from fish and lamb eyes—they all have a bursting juice sensation and taste better when grilled.

Especially cow eyes, which are four times the size of pig eyes, are often boiled first then grilled; moreover, compared to pig eyes, cow eyes are actually fattier, and when grilled and eaten, they resemble Chinese fatty pork belly or the fatty edge of a Western steak sirloin.

If evaluated using the common merchant phrase "this is the most active part of the cow's meat," the meat around the cow eye is truly the most active part of the cow—no meat understands activity better than I do!

However, the cow eyes grilled by Zhang Limin—or rather, grilled by the Pingzhou chef he found—when eaten by Jiang Yuan, could only be described as passable.

Jiang Yuan didn't need to explain specially; after just a few bites he put down his chopsticks, which already said it all.

Zhang Limin, having come forward with provincial department orders, upon seeing this, couldn't help but ask: "Is the taste not to your liking?"

Jiang Yuan said in all sincerity: "Yes. I often eat cow eyes grilled by my father; Pingzhou flavor might not be familiar to me, no problem, it doesn't affect me—I usually eat more meat and vegetables normally."

"It's my failure to think it through." Zhang Limin slapped his forehead: "I just listened to the Pingzhou chef telling me stories, that……uncle's phone number—could you give me one? I'll ask my uncle exactly how he grills and seasons them."

"This……no need, too much trouble for you." Jiang Yuan felt embarrassed.

"No problem, no problem—doing anything isn't not doing; of course we should do it well." Zhang Limin said sincerely: "Give me your phone number, I'll organize the chefs to study together."

Jiang Yuan tried to decline twice, couldn't get out of it, and finally, under Zhang Limin's fiery enthusiasm, had to give his father's phone number.

Zhang Limin left in a flurry.

Jiang Yuan turned back and said to the few people at the same table: "Really sorry……"

"It's fine, it should be." The Pingzhou people present naturally waved their hands: "Mainly, during the campaign period we can't drink alcohol, he wants to show something but can't, he's anxious to death—you give them something to do, and they'll feel at ease."

"Like alcohol withdrawal syndrome."

"Originally, just getting drunk would've been fine, but now there's no way, so we can only prepare some food or something—you wouldn't say it, but it's just not enough kick."

Several people said this while each picking up a rib meat piece, tapping them together, and started chewing vigorously.

……

Evening.

Similar to the previous campaign, experts who wanted to rest were considered off-duty, while those volunteering for overtime could naturally return to their seats to continue comparing fingerprints.

At the same time, the criminal police detachment's officers were on standby with weapons at the ready, prepared to arrest people based on the experts' findings at any moment.

Jiang Yuan also returned to his seat.

Even the section chief of that scale personally grilled cow eyes—whether he did it himself or not, at least the bowl containing the cow eyes was brought in by him; as a non-free-support guest troop, Jiang Yuan felt he should at least compensate for a few more criminals to be reasonable.

Taking advantage of the quiet night, Jiang Yuan deliberately selected a case and began to ponder it carefully.

The fingerprint came from a half-buried corpse discovered three years ago; when the body was found, it had already decayed beyond recognition, but the windproof jacket on it was of decent quality, allowing investigators to extract some fingerprints.

Because the victim had defensive wounds on the upper arm, with injuries concentrated in the chest and abdomen, all frontal, and there were traces of close-range blood spatter on the clothes, the attending forensic doctor determined there was a possibility of entanglement with the killer; plus, the victim's identity could not be confirmed, this made fingerprint identification on the victim's body particularly cost-effective.

Jiang Yuan pulled up the file and looked at it, also agreeing with the conclusion in the forensic report.

Especially the traces of close-range blood spatter, it could not have been sprayed by the victim onto himself—it could only be that the killer's knife-holding hand got blood on it, and during the continued swinging of the knife, it was flung backward onto the victim's body.

Through this blood trace, one can see that the distance between the killer and victim at that time was very close, thus also indicating the possibility of mutual entanglement.

Although due to severe corpse decay, DNA extraction is no longer possible, the fingerprints on the windproof jacket indeed possibly came from the killer, at least from the victim himself or a close relative.

This gives fingerprint identification a fairly good foundation. Of course, it still doesn't match the standard fingerprints in the fingerprint campaign, but it's still quite good.

Jiang Yuan thus retrieved the fingerprints, first tried marking them once, then ran them through the fingerprint database, scanning the top 20 candidate fingerprints, and then stopped.

If still at the level of a first-time participant in the fingerprint campaign, Jiang Yuan now has only two choices, both being clumsy methods: one is to as accurately as possible mark the confirmed feature points—mark seven if possible, six if not, five also works.

Then, use the confirmed feature points to run the database, extend the list of candidate fingerprints, and attempt to compare 50, 80, or even 100 fingerprints, checking during reverse comparison whether there are any with relatively high similarity, then conduct specific analysis to screen criminal suspects.

The second clumsy method is what everyone commonly uses: multiple attempts to mark feature points, even guessing some ambiguous feature points, to see if anything can be gained.

Back then, Jiang Yuan mastered LV3 and LV4 fingerprint identification skills, with the strongest in hand being LV5 image enhancement skill; nowadays, fingerprint identification has been integrated and upgraded to LV6, with the newly added image recognition and analysis LV5 being more comprehensive than image enhancement……

Thus, Jiang Yuan merely tried a few times, and in a very short time confirmed……this path is not feasible.

At the very least, it's also an abnormally difficult probability route, possibly requiring two or three days to squeeze out even a bit of opportunity from the clumsy methods.

After some thought, Jiang Yuan took out his phone and called Liu Zhuangshi, saying: "I saw a case, want to extract evidence—can it be done?"

Liu Zhuangshi, already soaking his feet at home, looked up at the pitch-black night outside the window and said: "Absolutely possible, no problem—send me the case file number, I'll have the evidence room personnel report now."

The evidence room's shift times are fairly fixed; normally nine to five isn't a problem. But since Jiang Yuan raised the request today, it's no longer an ordinary day.

Jiang Yuan pondered and then said: "I estimate I'll also need to use the forensic science lab—high-resolution microscopes and the physicochemical lab are both needed."

"No problem, I'll have the forensic science personnel come to work." Liu Zhuangshi said without pity.

"See you in a bit." Jiang Yuan said and ended the call.

Liu Zhuangshi's feet were soaking in hot water, he hesitated slightly, and began doing reading comprehension: Jiang Yuan said "see you in a bit," logically speaking, he should mean meeting with the evidence and lab personnel later, but he might also be implicitly acknowledging that I'll come over later?

Liu Zhuangshi thought again: Right, Jiang Yuan is working overtime, while I'm at home soaking my feet, preparing to sleep—this kind of behavior, if spoken about, would surely be seen as improper. So, Jiang Yuan actually implicitly acknowledged that I should do something?

Feeling Jiang Yuan's deeper meaning, Liu Zhuangshi hesitated no more, pulled his feet out of the basin, and shouted: "Honey, I have to go to the unit."

"Now? I see you don't want hair anymore!" His wife rushed over, slammed a cup of ginseng tea heavily onto the table: "You find your own clothes."

"I'll find them myself, I'll find them myself." Liu Zhuangshi hurriedly picked up the ginseng tea, slurped it down, put on his clothes, and ran outside.

Conference room.

Zhu Huanguang looked at the fingerprints, suddenly saw Jiang Yuan stand up to tidy his things, couldn't help but glance at the time, then smiled, stretched, and prepared to follow along and chat a bit.

At this moment, two officers each holding an evidence box walked in, then directly went to Jiang Yuan to report.

Zhu Huanguang was startled, simply walked forward.

Not just him—several people gathered around.

Jiang Yuan didn't hide anything, opened the evidence box on the spot, took out the windproof jacket, and said: "I'm preparing to re-extract a few fingerprints from it."

"Ah? Extract now? Won't it be difficult to take?"

"This material……will it be hard to take?"

"If fingerprints were taken before, the damaged parts have already been damaged."

The several people present were all experts in their respective units, and naturally offered their opinions.

Jiang Yuan nodded slightly and said, "I'm just preparing to try some new technology or something."

"You still have time to research new technology?" Zhu Huanguang was the first to express surprise. He often followed Jiang Yuan's cases, and without even mentioning the specific difficulty and effort involved, just the number of cases exceeded that of the vast majority of people; under these circumstances, where would he find the time to work on new technology?

Jiang Yuan had no way to explain, nor did he need to, and only said: "It's just something I picked up during the investigation. I also don't need to obtain a complete fingerprint; my idea is to extract several partial fingerprints, combine and process them, then run a comparison in the database—perhaps something could be found."

The LV6 fingerprint analysis method, adding a temporary 1 makes it LV7—that's world-leading fingerprint analysis technology. Whether you call this technology new or not is up to you.