National Forensic Doctor

"I'm here with the leaders of the Zhengguang Bureau's anti-narcotics detachment. I'm on speakerphone." Jiang Yuan told Pang Jidong on the other end of the phone, then turned on speakerphone and placed the phone in the center of the conference table.

"Okay, Master." Pang Jidong replied quickly, and then said with a smile: "Hello everyone, I am Pang Jidong from the Fourth Brigade of the Luojin City Criminal Police Detachment."

"Hello, Pangda Team, I am Lao Shi, Shi Zhonglong, from the anti-drug detachment. We should have met before, haha..." Shi Zhonglong really went to Luojin City to arrest people, and stayed there for a while. , have impressions of several captains in Luojin City.

Looking up at Jiang Yuan, Shi Zhonglong was curious and opened the topic, saying: "Team Pangda, when did you become a disciple of forensic doctor Yu Jiang?"

"It's been a year since I became a disciple. Master taught me to be very serious. I came to the capital again a while ago and studied with Master for more than a month." Pang Jidong introduced it with a smile, but it was not complete. , he didn’t know what was going on on the other side, so he naturally wanted to help his master hold up the situation.

The captain of the anti-drug detachment and others quickly said hello.

At this time, Shi Zhonglong and others were finally convinced that Jiang Yuan was really Pang Jidong's master, and that he was a formal apprentice and had learned from it.

Within the police community, it is relatively traditional. This kind of master-disciple relationship can be said to be very common and respected.

People in the room looked at each other, smoking cigarettes and looking at Jiang Yuan's face, all lost in thought.

Ningtai and Jiangyuan are too far away!

Snapped.

Jiang Yuan took out a cigarette, preparing to resist the erosion of second-hand smoke. He lit the lighter but did not light it.

Shi Zhonglong quickly picked up the lighter in front of him and helped Jiang Yuan light it.

Jiang Yuan smiled and nodded to Shi Zhonglong, and then said to the mobile phone: "Jidong, we are now going to track down a drug buster, nicknamed Niu Er. The last information found now is that he called the woman from Luojin City. Friend, we have his location when he made the call, please check here to see if it is convenient to trace..."

Niu Er ran away in a hurry and left a lot of goods and money at home and at his girlfriend's house. Niu Er called to ask his girlfriend to help hide the goods and send money.

As for whether his girlfriend was under police surveillance, he couldn't care less at the time.

This was also Niu Er's last message. After that, Niu Er disappeared without a trace, and he probably had a new identity.

Pang Jidong listened carefully to Jiang Yuan's explanation of the case and said, "It's simple. I'll tell the detective team first, and then go to the command center. Our images are now compiled..."

The Luojin City Criminal Police Team is at the detachment level, and the attached picture detectives are also at the brigade level, similar to those in Changyang City. In contrast, the criminal police team in Ningtai County only reached the brigade level, and the picture detective had only one imaging office with a total of three people.

Jiang Yuan hung up the phone first, then spread out the outstanding file on the spot and started reading.

Li Qian, the leader of the anti-drug detachment, thought about it and stayed. After finally contacting Luojin City, he also hoped to uproot the coconut meat line. Heroin's circuit is more traditional than that of new drugs. If it can be knocked out, it will be difficult to recover in a short period of time. When it recovers, drug dealers will also have to pay a greater price.

Cui Qishan coughed twice and took up the task of communication.

When a group of people gave the conference room the feeling of a wonderland, Pang Jidong's phone call came back, and then several technicians took the call and started tinkering.

Soon, the screen content of the Luojin City Picture Detective Brigade was synchronized on the large monitor in the conference room of the Anti-Narcotics Detachment.

"Master, look at the surveillance video of the time and place you want to check." Pang Jidong was already familiar with Jiang Yuan's style of play and knew that what he needed most now was video resources.

Jiang Yuan looked at Captain Shi.

Shi Zhonglong quickly reported the time and place.

The picture detective in Luojin City pulled up nine consecutive screens and said: "This is a video of the vehicle bayonet and portrait bayonet at the main street entrance in Wufeng area. I just ran through the portrait, and I didn't follow the leader. Consistent.”

The portrait mount camera takes very clear pictures, almost the same as ordinary mobile phone face shots. On sidewalks, intersections, etc. that pass through checkpoints every day, people will take pictures when they pass by. If ordinary people don't pay attention, they will definitely be photographed.

As for the situation where you pay special attention to the situation that you can't take the picture, you should naturally pay more attention.

"Run a group of faces wearing masks to see." Jiang Yuan looked at the software model used by Luo Jin City and began to issue an order.

The picture detective from Luojin City on the other end of the phone responded, quickly pulled out a large number of images, and said: "There are 2,720 images."

"Add one wearing sunglasses. Wearing a mask and wearing sunglasses at the same time." Jiang Yuandao.

The photo scout in Luojin City did as he was told, and this time there were only more than twenty photos.

Jiang Yuan and others looked at them one by one and found to their regret that none of them matched the unique ones.

Pang Jidong took the initiative at this time and said: "Otherwise, we can organize people here to check these 2,720 pictures to see if there are any suspected cow ears?"

"Okay. That's hard work." Jiang Yuandao.

"It's okay. The detachment leader said that Team Jiang is dealing with serious cases. He specifically asked us to devote ourselves to it." The person who spoke this time was the policeman from the detective brigade.

On the other end of the phone, everyone from the Anti-Narcotics Detachment of the Zhengguang Bureau looked at each other, and their expressions became serious.

There is a saying that is right. Jiang Yuan has done so many serious cases and it is absolutely right for him to cooperate well.

"OK, the arrangements are made. We have formed a review team. It will take about an hour and we should have the results." The captain of the Scouting Team personally explained over the phone.

Jiang Yuan thanked him repeatedly.

When wearing a mask, it is impossible to compare directly, but the effect of manual inspection is still quite outstanding. The most important thing is that you don't have to be extremely accurate to find a suspect, just find someone who is roughly similar.

When there are relatively few suspects, you can conduct special investigations or even conduct door-to-door investigations.

This is a huge difference between theoretical investigation and actual investigation. In theoretical investigation, we always want to find the "only solution". In actual investigation, there are not so many twists and turns. We will come to the door after seeing that there is a slight similarity between the cases. It is normal to hit one shot without a date.

"Then let's continue and check the vehicle bayonet." Jiang Yuan has LV6's map detection (trajectory analysis) technology, and he has one idea after another.

"What about a car without a license plate, a fake license plate, a blurred license plate, or a temporary license plate?" Luojin City's picture detective Ji Hao suggested.

"Okay." Jiang Yuan also waited for a moment.

Some people pretend to be smart and paint their license plates with mud. With such a license plate, as long as it passes the vehicle bayonet, it will directly alert the police. The traffic police would not watch the video originally, but in order to remove the little red dot, they had to click on it and watch it.

The most conventional picture detective did not come out, Jiang Yuan added: "Pull out a group of people whose faces are not visible in the car, including the co-pilot's car."

"Okay. In this case...48568 pictures." The picture scout reported.

Jiang Yuan rubbed his chin. Big data is like this now. There is an explosion of data. How to process and extract data is the core.

"Add a detour." Jiang Yuandao: "Let's see what vehicles have passed through the same place many times on that day."

With the caution of drug dealers, whether you drive yourself or let a driver drive, you are unlikely to get out of the car as soon as the car arrives. You will always have to look around.

This time, the number of vehicles pulled out by the photo scout was much less, only 7.

The photo scout released the pictures one by one and looked at them.

"That's it." Jiang Yuan only looked at it for a while, then he identified it and said, "Follow this black Sonata! The tail number is 778."

"Yes." The picture scout technician was also very excited. He pulled up the video and began to follow the trajectory of the black Sonata.

Soon, the Sonata left the avenue and entered a small alley.

In the image, the car has disappeared.

The photo scouts in Luojin City were also professional. Based on the route, they quickly retrieved surveillance images of the Black Sonata two kilometers away.

"Come and leave again." Jiang Yuan looked at the time and said, "Niu Er should have got off the bus here. He also made a phone call by the way."

"At the time of the call, this car has already left Wufeng." The map scout in Luojin City has locked the car and can call up the time when the car passed each checkpoint. It can even be drawn directly on the map by software. Come up with a trajectory map.

But if you get off the bus midway, you have to start all over again. This made several of the scouts feel slightly frustrated.

Jiang Yuan remained unmoved. The criminal suspect in some cases is obviously more vigilant, but from his point of view, it is just a more interesting resistance.

Jiang Yuandao: "You are so cautious and made a call here in Wufeng. You probably won't live here anymore. Look for single-occupancy vehicles within 1 hour of the end of the call, 10 minutes later. Including those with faces covered."

After some image research, more than 1,300 pictures were produced, but nothing was gained.

Jiang Yuan pondered for a moment and said, "In this case, we should leave on foot or by bike."

"The photos of the bayonet include the ones here." The police officer reminded that the previous 2,720 pictures had just been read.

Jiang Yuan shook his head and said: "He should have taken a small path. He may not know where the checkpoint is, but he should be able to get around it by taking a small path."

"There is no record showing that he is familiar with the area." A picture scout couldn't help but express his objection over the phone.

In the process of investigating cases, no matter how big or small, especially serious cases, leaders at any level do not actually care about the "offensive" remarks of their subordinates. Because for a case of this level, if there are not enough clues, one or two more investigation directions is not a problem at all.

Furthermore, while experience in case investigation is important, young people’s unsolidified thinking is also important. Professional investigators know this well.

At most, if there are difficulties in the investigation direction suggested by the young people, just send him to investigate, such as searching septic tanks, climbing garbage mountains, etc...

Jiang Yuan didn't care about the rebuttal of the young policeman across from him, and only said: "Niu Er is a drug dealer, and he doesn't use his ID card or mobile phone every day. It doesn't matter whether he has records or not... Let's consider the issue of time first, because Niu Er is on the run. , his biggest concern should be the issue of time. Unless necessary, I believe he will not waste time."

Jiang Yuan said this, clicked on a few points on the map, sent a screenshot to Pang Jidong, and said: "Look for the surveillance in these places. If there is anything missing, look for surveillance from other units or civilian surveillance."

"Okay, I'll send someone here." Pang Jidong agreed.

Jiang Yuan then opened a larger map, and marked more than thirty points in the outer circle. After a while, he removed half of them.

"If you can't find it, the second batch will be found here."

Jiang Yuan hung up on LV6's trajectory analysis. Although there was very little information, he was still extremely confident.

The criminal police and anti-narcotics police on both ends of the phone were infected by Jiang Yuan's confidence and smiled optimistically. Only the professional map detective was filled with questions: It was fine just now, why did it suddenly jump out of this map?