wavenovel Chapter 1335 Messy
Chapter 1335 Messy
Chapter 1335 Messy
Jiang Yuan inspected the windproof jacket, one of the pieces of evidence, on-site. He specifically used a horseshoe-shaped scope to examine several potential fingerprints, then refreshed his mind with the new technology before looking up and asking, "I need a high-definition spectral imager. Do you have one?"
Standing opposite him were two police officers from the archives. Faced with Jiang Yuan's questioning, they could only raise their eyelids, which were heavy from working overtime, their hearts and eyes filled with confusion.
"The provincial department has a Resonon push-broom type with a 5.5-nanometer resolution; I borrowed it before," said Zheng Feng, a forensic technician who rushed over, a "young" expert under 40 years old.
"There isn't one in Anwan City?" Jiang Yuan asked again, still unwilling to give up.
“We have high-definition microscopes, but not high-definition spectral imagers. You want to use a high-definition spectral imager to scan this jacket, right? We can't do that. The one from the provincial department should be able to, but the high-end one is said to cost 50 yuan. Our municipal bureau simply can't afford it.” Zheng Feng was very familiar with his company's equipment.
Accompanying him was Liu Changchuan, the captain of the criminal investigation team, who was even more direct: "Even if you can afford it, you won't know how to use it. Foreign software is very complicated. I've used Resonon's before, and the images it produces are different from those taken with a normal camera. You need to do image enhancement... By the way, Director Jiang knows about image enhancement..."
It's unclear whether this time he was criticizing the technology or praising Jiang Yuan.
"I guess we can't borrow it from the provincial department today." Jiang Yuan was a little disappointed. He had activated the system's temporary +1 skill, which lasted for a total of 405 minutes, or more than 6 hours. After using it up, there would be a 24-hour cooldown. Now that the equipment wasn't available, the skill was essentially wasted.
However, not using it is not an option either. New technologies are not so easy to internalize. With fingerprint level 6 alone, it is invincible against existing fingerprints. If you want to use new technologies to collect old fingerprints, and collect them clearly for use in solving cases, even level 6 fingerprint analysis methods will struggle.
New things are bound to be more expensive.
Seeing this, Zheng Feng checked the time and said, "Even if someone is on duty at the provincial department now and we can borrow something, it would probably be tomorrow morning by the time we make the round trip. We probably can't borrow it today."
Captain Liu Changchuan spat out his dry lips: "Even if someone from the provincial department is on duty, we still can't borrow anything."
Laughter, a bittersweet expression, rippled through the room.
"Oh, I see. That's a bit of a waste." Jiang Yuan was genuinely disappointed. Using LV7 fingerprint analysis skills for ordinary fingerprint identification would be overkill, and it was a waste of a day.
"Are you in a hurry?" Zheng Feng asked somewhat "inconsiderately".
Liu Changchuan, who was standing next to him, frowned: "Director Jiang came over to help us, how can you talk like that?"
After saying that, Liu Changchuan said to Jiang Yuan, "Let's sort out the past now and try to borrow the machine from the provincial department tomorrow morning. Then we'll drive back and should arrive around noon."
This is already faster than the standard procedure.
Jiang Yuan shook his head slightly: "If it's tomorrow at noon, then there's no need to rush."
After saying that, realizing that others might not understand, Jiang Yuan made up a new reason, saying, "I'm in a good state right now, and I can probably work for another 6 hours. After 6 hours, I won't be able to do fingerprint comparison anymore. I'll probably have to take a long nap. In that case, it might be another day before I can deal with this jacket."
As Jiang Yuan spoke, he put the clothes back into the evidence bag.
Even the veteran captain Liu Changchuan was moved by this; what kind of spirit was this...?
"Let me think of a way!" Liu Zhuangshi, who had just pulled himself out of the comforting embrace of the bath, walked in. His brain, which was now well-circulated with blood from the foot bath, instantly came up with a solution.
As a mere head of the municipal criminal investigation branch, he certainly didn't have enough influence over the provincial department. However, Zhang Limin, who brought vinegar to make dumplings, was from the provincial department. Most of the fingerprints processed in the Anwan fingerprint campaign didn't even belong to Anwan, so naturally, he could ask Zhang Limin to solve the problem.
Liu Zhuangshi didn't care that it was late and made a phone call to Zhang Limin.
A moment later, Zhang Limin appeared in the command room carrying a large iron basin. As he entered, he greeted everyone warmly, "Everyone, the Jiang family's special roasted beef eyes, directly supplied from Jiang Village, have arrived! Ta-da..."
The presence of such a large cadre, complete with his own sound effects, naturally drew rounds of applause.
Anyone who wasn't particularly scared came up and politely took the grilled beef ribeye. At the same time, everyone noticed that there were also grilled beef skewers in the bowl, so some people simply took the skewers instead of the beef ribeye, which was acceptable.
Zhang Limin chuckled and offered food to everyone, then took a string of bull's eyes and gave it to Jiang Yuan, saying with a smile, "Please try this. It was made according to Mr. Jiang's instructions. As for the high-definition spectral imaging device, I called the department, and they're already on their way with the equipment and personnel. If they drive fast, it should only take two or three hours to get there."
"Ah, you've got it done." Jiang Yuan was a little surprised and had to add a "you" in his greeting.
Zhang Limin smiled and nodded: "It's a small matter. It's just that we didn't think things through when it came to using an instrument. If you have any requests, just let us know. We will definitely do our best to fulfill them. Even if it's equipment that the hall doesn't have, as long as you think it's necessary, I will immediately contact someone to purchase it."
Jiang Yuan thanked him with a smile, then took another bite of the beef eye. It was indeed rich, fragrant, and soft, like the muscle on a beef shank. It was very chewy, yet completely free of any stiffness.
"It smells delicious!" Jiang Yuan gave Zhang Limin a thumbs up.
"If you like it, that's good. I'll go grill some more and try." Zhang Limin didn't keep Jiang Yuan talking, giving him time to do his work, and went off to grill meat with great enthusiasm. At that moment, it was hard to tell whether it was because of work or because he genuinely enjoyed it.
The experts who remained in the conference room returned to their seats to scan their fingerprints. This is one of the advantages of fingerprint scanning campaigns: you can work overtime without being scolded by your family for coming home late, because you can choose to stay here instead of going home.
Although the office computer cases were making a loud noise in the room that night, everyone's mind was at peace.
Liu Changchuan, the head of the criminal investigation team, carefully examined Jiang Yuan. To be honest, forensic doctors are also part of the criminal investigation team, but when it comes to convenience…
"Let's bring the remains over for a look too." Jiang Yuan scanned through all the evidence in the case of the unearthed corpse once more.
More than two hours passed in a flash.
Two police officers, looking travel-worn, entered with a large camera, accompanied by Zhang Limin.
The high-definition spectral imager, valued at 50 yuan, is smaller than a traditional camera in terms of appearance. It's a black and red cuboid with a camera protruding from it.
One of the detectives quickly explained the equipment to Jiang Yuan, especially the software. He specifically opened the instructions and said, "When we collect samples, we first need to complete automatic exposure measurement, adjust the focus, and remove the dark background. For spectral imaging, the step size is generally set to 1.33nm. This way, each sample can obtain a spectral image set consisting of 462 images per acquisition... The raw data collected is processed by PectrononPro software and converted into reflectance data..."
He gave a brief explanation, then looked at Jiang Yuan, preparing to follow his orders and operate the equipment himself.
Jiang Yuan noticed this, but still reached out and asked for the instrument, saying, "Let me try it first, and you guys can take a look for me too."
After saying that, Jiang Yuan asked for the evidence jacket and spread it out on the spot to carry it out.
This type of high-definition spectral imager is designed for field sampling. Theoretically, if a body is found at a crime scene, investigators carrying the instrument can collect fingerprints and other traces for comparison. This is the simplest application.
The technician hesitated for a moment, then, seeing Jiang Yuan's skillful movements, asked, "Have you used the same type before?"
"More or less." Jiang Yuan mumbled, then quickly extracted several fingerprints.
Push-broom type high-definition spectral imagers, as the name suggests, use a flat-scan method for sampling. Once the instrument is properly calibrated, it is very convenient to use.
The obtained fingerprints were then transferred to the computer and opened with PectrononPro, whereupon the technician looked at them with an inquiring gaze.
Jiang Yuan sat down without hesitation. If it were a regular fingerprint comparison, it would be fine, as it would make the operation easier. But there were only so many fingerprints that could be found on the evidence jacket. He also had a Level 7 skill, so using it now would make their hard work of running hundreds of kilometers late at night worthwhile.
Several fingerprints quickly appeared, but they looked severely damaged.
"Can it be used?" Li Zemin asked with concern, squeezing closer as he held a Zhonghua cigarette in his mouth.
"We need to deal with this," Jiang Yuan said thoughtfully.
"How should we handle this?" Li Zemin asked curiously.
"HE or WT, or BBHE and SEHE," Jiang Yuan said, referring to Standard Histogram Equalization (HE) and Standard Wavelet Transform (WT), as well as Average Preserving Double Histogram Equalization (BBHE) and Histogram Equalization with Two-Dimensional Spatial Entropy (SEHE).
Li Zemin said "Oh," as if he understood, and turned to ask the two technicians, "What do you usually use?"
"Ah...we usually...we usually just choose the happy ending by default." The technician seemed a little flustered, his expression somewhat disorganized.