Chapter 1109: Hard Work

After Jiang Yuan walked a large circle inside the park, he walked through all the roads outside the park again.

Qiu Li insisted on following the whole time, until her feet went soft. Just as she was instinctively about to give up, she saw the black-haired, long-straight female Ph. D. student still walking like the wind, so she regained her strength.

Walking to the end, Qiu Li had already started to feel happy. Ever since she successfully passed the civil service exam, she basically hadn't felt this kind of joy of working hard and breaking through herself.

Sometimes, after being leisurely for a long time, without lacking money, without burdens, eating whatever you want to eat, playing whatever you want to play, going wherever you want to go... after that, even just finding a direction to work hard toward makes one feel precious.

"That's about it." Jiang Yuan looked at the surroundings while asking the criminal police of the Luojin City Bureau to help collect surveillance footage.

There was no shortage of surveillance cameras in the surrounding area. Those built by public institutions with approval just needed coordination to be retrieved, but private cameras were actually more numerous. Among these, cameras in shops, malls, parking lots, and various public and private units could be considered to have a trail. Others, like those on electric vehicles or private homes, were much more troublesome to find, but they were all cameras, so they should be treated equally.

The most important thing, of course, was that the task force had abundant manpower and could afford to fight this kind of "wealthy battle."

Watching other police officers search shop by shop along the street, Jiang Yuan turned to Pang Jidong and said: "We'll go to the Image Reconnaissance Brigade first. The retrieved footage will also be sent over synchronously. Let's see if we can find the vehicle used by the murderer to transport the body."

Over at the film studio, carrying a body for a few hundred meters was already very exaggerated. Carrying a body out of here would be too tiring; in terms of manpower alone, it was an impossible task, so there must be a means of transportation.

A criminal police officer who came with Pang Jidong had also followed the whole way and couldn't help but participate: "It might not necessarily be transporting a body. If the victim was threatened, it's also possible they walked out with the murderer. If that's the case, they would have more routes to choose from..."

"Impossible." Jiang Yuan denied it immediately, then felt his tone was a bit stiff, and said: "The spore-pollen on the victim's body is also layered. For example, a large amount of clover spore-pollen, as well as the corresponding pollen atlas, means the incident happened in this park. If they were able to have normal contact with the outside world, there should be more pollen from other varieties on his body..."

To explain, Jiang Yuan organized his language again and said: "Based on the spore-pollen on the victim's body, it can basically be determined that he was murdered in the park, and the person was carried out."

"Then we can look for people who often come to the park and see if they saw anyone carrying someone, or carrying someone on their back." Pang Jidong took over the conversation and gave a suggestion that wasn't quite a suggestion.

Jiang Yuan nodded: "We can ask. Let's go, let's go to the Image Reconnaissance Brigade first."

The uncertainty of door-to-door visits is very strong; many cases are solved through visits. This skill belongs to the "criminal police technique," and continuing to do it is definitely no problem.

However, even if a suspected target is found through visits, it still requires the cooperation of subsequent criminal technology technicians. For example, identifying the murderer through surveillance cameras in the park. If the murderer completely avoided the surveillance cameras in the park, it might require a criminal sketch to draw the murderer's appearance.

Or, reducing the workload of the criminal police through visits, such as determining the murderer's direction, knowing which way they went, might be more conducive to the investigation.

But given the current abundant resources, the task force's demand in this regard is actually not strong.

Or rather, even if some information could be obtained by visiting the elderly or dog owners strolling in the park, the task force still preferred a more complete investigation.

Just for Jiang Yuan, although the cameras in the park weren't good, the vehicle checkpoints outside the park were complete.

This meant that any vehicle leaving this park would basically be captured by cameras.

Provincial capital cities nowadays basically all have this kind of configuration.

People can take "unusual paths," but there are only so many lanes. With the Image Reconnaissance team, slightly organizing the cameras in the city doesn't require too much cost; next, just "click-click" take photos. Given the current level of technology, storage costs haven't been in the eyes of the police force for a long time.

Jiang Yuan gave the order, Mu Zhiyang made two "woo-woo" sounds on the walkie-talkie, and soon a Coaster bus pulled over.

Jiang Yuan and the others boarded the bus one by one, and Qiu Li followed quickly.

Mu Zhiyang paused for a moment, reached out to block the door, and said: "You're from the park management office, so you don't need to follow us."

Qiao Shengli on the bus smiled slightly and flicked her black, long, straight hair with her hand.

Qiu Li only felt her chest was about to explode, her blood rushing to her head, her cleverness pulled to the max, and she said: "Aren't you going to look at the surveillance footage around the park? I'm too familiar with the surroundings of the park; I often walk on these roads, and I also participated in the renovation of the city management department..."

The latter qualification made Jiang Yuan raise his eyebrows: "Let her come up."

Jiang Yuan expressed agreement, and naturally, no one else had anything more to say.

Luojin City Image Reconnaissance Brigade.

The front big screen and the small screens below, dozens of surveillance videos were broadcasting simultaneously, Jiang Yuan...

Jiang Yuan naturally couldn't watch them all.

But the biggest difference between police and criminals is that there are many people.

Even for a police officer like Jiang Yuan, whose skills are overwhelming even when used alone, he wouldn't really act alone. In fact, the basic configuration for Jiang Yuan to solve a case now is already a cold case task force of more than 30 people, all graduates of specialized police schools with more than five years of experience, assigned with a Ningtai County native veteran criminal police team of a dozen or so people of unfixed number, as well as a criminal police team of about 20 people from the local area where the case occurred, and the criminal science and technology centers of both places.

And this is just the standing force. When needed, Jiang Yuan also often mobilizes regular police forces numbering in the hundreds, as well as long-gun soldiers with live ammunition, while also assigning vehicles and even corporate jets to these personnel; the cost is even more incalculable.

Even for Liu Jinghui, who pays the most attention to "wits and courage," bringing a criminal police team when going out is a basic operation.

Jiang Yuan is even less likely to be polite to criminal suspects now.

All the officers at home in the Image Reconnaissance Brigade were assigned one or several screens and were working hard to read them.

Come to think of it, there are many techniques for reading surveillance videos, especially wide-angle surveillance. The distortion of people in different positions will increase, and it takes a period of habituation to better identify them.

Jiang Yuan, on the other hand, was constantly participating in the synchronization of the videos.

This is the troublesome part of image investigation: the range covered by one camera is limited, and another camera might not necessarily provide a seamless connection. Or rather, even if a seamless connection is possible, accurately transferring from one camera to another still requires a bit of brainpower.

There is no help from film editors here; many changes in images are like being montaged.

What the criminal police of the Image Reconnaissance Brigade hoped to see was the murderer or murderers carrying or hiding Zhang Lei's body. However, after watching the surveillance for several hours after Zhang Lei appeared, no one found such an image.

Everyone's gaze couldn't help but turn to Jiang Yuan.

"Calculating from the time, the murderer killed Zhang Lei at this time and should have been driving non-stop to Lanyue City. It should have taken about a day on the road. However, the investigation situation in Lanyue City is that there weren't many cars from Baijiang Province that arrived there." Jiang Yuan looked at Liu Jinghui and said: "In that case, is it highly likely the murderer changed cars?"

"It's also possible they changed license plates." Liu Jinghui said: "Cloned cars are more convenient; you don't need to move the body. Besides, changing cars in the middle always requires a car, which requires advance preparation, which is slightly more troublesome."

"If a cloned plate is cloned well, and they even clone the plate of their own car, then it's basically impossible to investigate." The Image Reconnaissance Brigade Captain said. The Image Reconnaissance Brigade also often handles cases in this regard and has rich experience.

Liu Jinghui nodded: "Then let's do some hard work. Just look at the car model and color, don't look at the license plate. See how many cars overlap between the film studio in Lanyue City and the park in Luojin City. Well, you can even ignore the color; just look at the car model..."

"Then there will be a lot of overlaps." The Image Reconnaissance Brigade Captain counted on his fingers: "The 'three mothers of the road'—Japanese Accord, Camry, Teana—plus Sagitar, Bora, Passat... Oh, and Wuling Hongguang... There are only so many car models on the road. If you want to distinguish the specific generation of the car model, with these 'nesting doll' faces today, the workload is too large... Otherwise, let's scan with software first and see if it can jump out directly."

"Scanning with software is also fine." Liu Jinghui didn't completely deny it.

There are many types of software for Image Reconnaissance, but they are all based on reading images, so the accuracy rate is never very high. It is more than enough for general public security governance work, but it is unsettling for solving this kind of homicide case.

Jiang Yuan, looking at the constantly changing surveillance video in front of him, said slowly: "Since we're talking about doing hard work, how about this: after Zhang Lei appears, pull out all the vehicles that appear within 12 hours in the surrounding area and see if any left the city. The murderer killed someone; with a means of transportation already, they wouldn't go so far as to change cars, right?"

"That's not necessarily true." Liu Jinghui opposed and said seriously: "The car driven when killing someone might be an electric vehicle; changing to a fuel vehicle specifically to run on the highway is also possible."

Qiu Li was listening with wide eyes on the side. Seeing Liu Jinghui refute Jiang Yuan, she couldn't help but say: "This won't work, that won't work. You have so many people; just try all the methods."

"Do you know how much money it costs and how many people it takes to try everything?" Liu Jinghui laughed.

Qiu Li curled her lips: "I don't care about that; I just want the result."

Liu Jinghui was stunned for a moment, and after a long while, said: "You little girl, your thinking is exactly the same as the leader's." ===== CHAPTER 1110 =====