National Forensic Doctor

After seeing off Liu Wenkai and finishing Wu Junhao's cake, Jiang Yuan continued to watch the surveillance camera, as boringly as a repeater of his senior year in high school.

Everything in front of me seems familiar, and it seems that there are questions with clear answers, but when I need to continue to move forward, I often worry that I have not done enough before and the answers given are inaccurate.

After watching, Jiang Yuan picked up the cup and drank the tea. The surveillance video in front of him continued to play, but Jiang Yuan's eyesight began to drift.

Liu Jinghui knew at a glance that the dragon had something on his mind. He took a pack of soft Chinese medicine, opened it, handed one to Jiang Yuan, took one in his mouth, lit it for the two of them, and just puffed away the smoke. With.

When a cigarette burned to the middle, Jiang Yuan put the whole cigarette in the ashtray and said: "From Shipozi gas station to the gas stations in the northeast, there is no gas station within 400 kilometers of Kuang Shan." traces."

"Is he more cautious?" Liu Jinghui asked.

"Maybe, it can't be ruled out, but it's unlikely."

When Liu Jinghui saw Jiang Yuan say so many vague words in one breath, he immediately gave him more confidence and said, "According to your judgment, with so many cases solved, there is nothing special about Ren Kuangshan."

It's just that the case he was doing was special and he was extremely well prepared.

However, with modern technology, those who can escape for a period of time are considered to have been screened out. Such criminals, to a certain extent, are also somewhat talented.

Jiang Yuan pondered for a moment and said: "There are monitors in front of the refueling guns at gas stations. This time I paid special attention to whether there were any people hiding outside the monitors to refuel. In fact, the refueling guns at Shipozi Gas Station have already been monitored. It’s a relatively high level of violation.”

"A particularly small private gas station?"

"I will check the surveillance of nearby access roads." Jiang Yuan has high authority and strong support. He can even call surveillance videos across departments.

Liu Jinghui raised another possibility to help Jiang Yuan judge, saying: "There are many private oil sales in various places. Ren Kuangshan drives a big car, so he should have similar channels. If he secretly contacted the private oil dealer, then Buy private oil, or maybe he will also steal oil?”

Those who drive large cars are basically faced with the problem of fuel thieves, so much so that many vehicles are specially equipped with anti-theft fuel tanks. Even so, they cannot stop fuel thieves from using various innovative and life-threatening cracking methods.

Ren Kuangshan has been driving a large car for so long. Regardless of whether he has experience in this area or not, he must have the corresponding knowledge. The most important thing is that he definitely has channels to understand this information, whether it is stealing or buying.

"What do you think?" Jiang Yuan asked Liu Jinghui.

"If I were him..." Liu Jinghui thought for a long time and said, "I should choose the gas station. Because private oil dealers are unstable and unreliable. When you go to the gas station to refuel, Ren Kuangshan can wear a motorcycle helmet. You can wear a facial kini to protect yourself from the sun, but when dealing with a private oil dealer, will the other party allow him to do this? "

What Liu Jinghui said was more down-to-earth. Although the concept of privacy is not highly emphasized in China, it does not interfere with your dress. No one cares about wearing masks, sunglasses or facial kinis. But that’s not the case when it comes to black market transactions. If someone asks you to get rid of it, you have to get rid of it. Similarly, since black market merchants are doing illegal business, they don’t mind getting an extra wanted reward.

"From the current point of view, the clue to refueling is broken." Jiang Yuan shook his head helplessly.

Liu Jinghui was not in a hurry anymore. He sat across from Jiang Yuan and said, "Let's not talk about the clues being broken. What did you find here?"

"Nothing was found." Jiang Yuan spread his hands.

"There is no discovery, maybe it is a discovery." Liu Jinghui paused and said: "Although it is true or false, I think you have been looking for it for a day. If you haven't found it yet, can you say, Ren Kuangshan is not working hard anymore?”

"No more gas at the gas station." Jiang Yuan corrected.

"Private oil dealers... Although I don't think it is appropriate to choose private oil dealers, but... it is easy to prove. Just grab a group and ask." Liu Jinghui called Wang Chuanxing over and called the headquarters and Wang Sheng, captain of the Meiyang City Criminal Police Detachment.

For the captain of a city's criminal police detachment, selling illicit oil is a gray industry that is as small as possible. It may not pay enough attention to it on weekdays, but as long as it pays more attention to it, for illicit oil dealers, Just a heavy slap.

After Liu Jinghui made the call, he turned around and said, "I assume there is no news from the private oil dealers. If this is the case, we must consider that Ren Kuangshan has not continued to refuel."

Jiang Yuan thought hesitantly, then nodded.

"If he had not continued to refuel, he would have probably abandoned the car." Liu Jinghui made a decisive judgment, with a somewhat determined expression.

One big difference between police investigation of cases and reasoning games is that the police can continue to increase the number of known items through investigation.

Reasoning games are actually very similar to problem solving. They both obtain a series of known conditions and then begin to deduce the results and seek answers.

But when police handle cases, in fact, this part of deriving results is often very rigid. For most criminal police officers, it is actually just a few mature routines that are constantly applied over and over again. The difference is that in the process of handling a case, the police can always add known conditions.

From this point of view, police investigation and reasoning games are completely opposite.

On the contrary, it is an old case that looks like a reasoning game.

At the same time, this is also one of the reasons why ordinary criminal cases seem low-level.

Jiang Yuan couldn't help but look at Liu Jinghui and said, "If it is determined that the car is abandoned, he has switched to public transportation?"

"It should be. You have to refuel when you drive yourself. If you want to recharge the electric car... it is better to refuel on a motorcycle than to rent an electric car." Liu Jinghui shook his head: "That is, you can follow the gas station line. Ren Kuangshan can't think of this level. Don't think too much about him."

"I have also checked the battery replacement station, but now many parking lots can charge..." Jiang Yuan paused and continued: "He can't go into the city. There are too many checkpoints for vehicles entering and leaving the city. It is possible to avoid them by riding a motorcycle, but it is too difficult to drive."

"Then I think there are two directions. One is that he settled down around the Shipozi gas station, and the other is that he changed to other means of transportation. But I tend to change the means of transportation, because if he wants to live nearby, living in the city, he still has to face the problem of entering and leaving the city. It is not difficult, but it still takes a lot of risks. Moreover, he is most familiar with Meiyang City, which is still too close to the scene of the crime."

This level of Liu Jinghui's judgment is somewhat gambling.

But in terms of time efficiency, comprehensive reasoning is not only difficult to exist, but also lacks practical significance.

Jiang Yuan immediately recognized Liu Jinghui's judgment and said, "Then there are two steps. The first step is to increase the investigation in Meiyang City. Now that we are here, please ask the Meiyang City Criminal Police Detachment to do more."

Liu Jinghui raised his lips: "Only you can say this."

Jiang Yuan: "The second step is to find public transportation to the Northeast."

Liu Jinghui nodded: "There are several types, airports, high-speed rail stations, railway stations, bus stations, car rental companies, and ride-sharing. He is a truck driver, and he may also find a truck, or directly take a ride with a truck. The probability is a little smaller, but we can't help it."

"It's very difficult for him to take a plane, and the high-speed rail station is not easy. Others..." Jiang Yuan thought for a while and said: "You still need to refuel when renting a car, and it's actually the same when you take a ride with a truck. You will be photographed when you pass the vehicle checkpoint. However, send more wanted leaflets to these places and sort them all out."

"Then I still have to trouble the Meiyang City Bureau." Liu Jinghui smiled.

Jiang Yuan coughed twice and took out his cell phone: "It's better not to bother two people with one thing."