Didi...

The modified lift was shouting while lifting Jiang Yuan to the height of 6 floors to facilitate his observation of the exterior wall.

If this is in a county or prefecture-level city, the police station will most likely use fire trucks from the fire brigade, but in a wealthy police station like Beijing, professional lifts also have professional lifts. The characteristic is that the body of the car can be painted with its own skin.

Jiang Yuan was carried by a lift and slowly descended from the top floor. Next to him was Cui Qishan and Xiao Si, who helped him by the way.

As the lift "driving" and making tireless voices, Xiao Si next to him couldn't help but say, "Why did we always hang ropes from above before?"

"Because it's too troublesome to borrow a car from the municipal bureau." Cui Qishan looked at Xiao Si's unhappy expression and said, "If you are not satisfied, you will just go and borrow it next time."

"They hung up my phone." Xiao Si curled his lips: "If I had the title of captain or something, I would have borrowed the car."

Cui Qishan stared at Xiao Si with a high-profile look: "You mean, my captain is a corpse meal in the simplicity?"

Xiao Si: "This is not the first time I have said that. Of course, the words I use may not be as advanced as you."

"Do you know how to use honorifics now?" Cui Qishan raised his hands and put them down again and said, "I won't slap you. We stand so high that the people below will make a joke."

"It doesn't matter." Xiao Si's tone was filled with a faint search for death: "We have been making people laugh for a long time."

"The next one is here." Jiang Yuan interrupted the two of them. Cui Qishan realized that the lift had landed on the carriage, and the vehicle began to move. After it was in place, he lifted the three people again.

Jiang Yuan looked at the wall, and from time to time he turned around, especially the greening on the ground and the roads outside the wall.

"The rope may fall off a little faster." Jiang Yuan looked at the slowly changing wall, a little bored. The wall without any trace was like a fake antique at a glance. You can tell that there is no flower head, but the speed of the lift is there, and most of the time it is equivalent to waiting.

However, it is also necessary to take time to look at the greening and roads outside the wall. On-site investigation is to some extent to analyze the psychology of the criminal. You have to guess how he went, so that when the investigation, you can do more detailed investigations at the key points.

This model develops to the highest point, which is to reproduce the crime scene and directly simulate the criminal's activities in a certain space. Of course, this model has very high requirements for evidence. As the promotion skill for blood stain analysis, it is because only a large amount of blood can provide so many footprints, fingerprints, palm prints, tool traces and other on-site clues.

Cui Qishan did not understand Jiang Yuan’s thoughts and only expressed respect: “The rope is very tight, but after being worked for a long time, most people can’t stand it.”

Xiao Si sneered beside him, and said to himself in a voice that only Cui Qishan could hear: "We are not human."

Cui Qishan's tolerance for Xiao Si is actually very high. As long as he does not affect others, he usually speaks. As a criminal policeman, a person who is unconscious in drug use can communicate with others. What is a colleague with a bad mouth? What's more, Xiao Si is still useful.

Cui Qishan turned his head and said, "If you do this, you are carrying a camera here, don't wait for Team Jiang to find the traces. Just take pictures of the walls we passed by according to the speed of the lift's descent, and go back to sort them out to facilitate Team Jiang to find and compare them later."

Jiang Yuan nodded. Although it was not very necessary, this kind of rigorous attitude towards evidence was necessary.

Xiao Si only had to stand beside him, but now she was so big that she lost her face. However, she obediently picked up the camera and took a photo, muttering: "There is no one and a half passed by in front of her."

"Then you can take a sling in a while." Cui Qishan gave a reasonable solution.

Xiao Si's face turned green: "Doesn't you use any lifts? I'll make up for it after Team Jiang has used up."

"You don't remember Director Jiang's habits at all. After Director Jiang's investigation, he has to analyze and compare them. At that time, you can't take out the photos, so you drove the lift to take pictures? Wasting time! I'm asking someone to prepare a rope to take pictures. You can take pictures of the missing ones after a while. The rope speed will be faster and just catch up with us." Cui Qishan instantly arranged Xiao Si clearly.

Jiang Yuan expressed his approval in his heart and inexplicably thought of Shin Yaowei. Of course, Shin Yaowei's words sound much better than Xiao Si, and he has to practice doing things.

The lift came down and went up again, brushing the walls of Avi's apartment side by side.

The reporter below also looked up with his neck tilted and took photos from time to time, but soon fell into boredom.

It is boring to watch on-site investigations. Some people who have experience may have seen the on-site investigations by the criminal police. If they don’t know how to do it, they feel like they are doing foreplay for the room, and they don’t know what to do. But if they know what to do and know where to bring their sexy feelings, they often smile.

"Stop."

When the lift was lifted to the second floor and the third floor, Cui Qishan finally heard the sound he wanted.

Jiang Yuan raised his hand and called to stop, which was equivalent to solving the case.

Cui Qishan's standing posture changed from standing attentively to resting.

Jiang Yuan didn't know what Cui Qishan was thinking, so he just looked at the traces on the wall and started sprinkling powder.

The traces on the wall are more difficult to preserve than those on the indoors, so they are not very obvious, especially the traces on the dry-hanging stone are less likely to appear.

On the other hand, the multi-band light source that Jiangyuan now uses more often is not suitable for use on small lifts under daylight. In the end, it is actually the most traditional powder.

If you sprinkle the powder here, you can see less obvious scratches and wear. Xiao Si, who has returned, quickly took a photo, while Jiang Yuan paid more attention to the location, direction and depth.

This is above two floors and below the third floor, Jiang Yuan only saw traces of his hands and feet, and no traces of tools. If you look closely, the traces in front of him are still traces of going down, and there are no traces of climbing upwards.

In this way, the murderer either went upstairs in another way or took two paths to go upstairs.

"From the traces, the murderer flipped down from the rooftop and did not pass through other windows." Jiang Yuan said while recording.

"There is no insider in the apartment?" Cui Qishan asked.

"This is the route to leave, which means that when he left, he came out of the victim's house and climbed down to the rooftop of the building. But how to get in, I have to continue watching." Jiang Yuan shook his head slightly.

Cui Qishan frowned: "Why don't you leave Martina's house directly? You'll come out and go to the rooftop, it's a bit too much."

"When you come out of the window of Martina's house and walk down, you will pass through the windows of other people's houses. In addition, this climbing route is probably not easy to climb, but rather choose a wall with an outer edge from the top floor... For those who are good at rock climbing, this route should be very easy to go down the sixth floor."

Jiang Yuan has already thought about this question and answered it very quickly.

Cui Qishan raised his eyebrows: "Is the murderer a rock climbing expert?"

"There is a high probability that he climbed with bare hands." Jiang Yuan finished looking at the wall, then jumped off the lift and looked at the ground.

"The ground is cleaned every day." Cui Qishan whispered, saying, "After the incident, the outdoor cleaning of the apartment has not stopped. They were outsourced to a cleaning company. The cleaning company received the money per time, but we stopped it yesterday."

"There is no trace on the ground, but the lawn next to it is sunken... The criminal climbed from top to bottom and jumped down directly..." Jiang Yuan directly said the results of his observation without further reasoning.

Xiao Si said, "Jump down from a place four or five meters high? Doesn't your feet hurt?"

Jiang Yuan wiped it with his hand and then said, "At present, our suspect is a rock climbing expert, free-handed rock climbing. Judging from the distance of the climbing point chosen each time, his arm span is more than 9 meters and he is tall. In addition, the suspect has certain anti-reconnaissance ability. He not only cleaned some traces in Martina's room, but also cleaned the traces of the rooftop."

After saying this, Jiang Yuan signaled the lift to continue moving forward. He had not finished looking at the facade of the apartment building and had not found the route he climbed up.

However, there are only so many areas left. Jiang Yuan let Cui Qishan go and then took Xiao Si and Wang Chuanxing around him. He was not in a hurry at this time.

In other words, after three more times, Jiang Yuan saw another climbing route. This time it was in the northwest corner of the floor, and it was still a mode of climbing with bare hands.

When looking at it again, Jiang Yuan instantly understood why there were two routes, because the demand for climbing and falling is different, and the suspects obviously chose the easiest route.

Similar to the route just now, the suspect also chose to climb to the rooftop for this route.

After Jiang Yuan came to this conclusion, Cui Qishan couldn't wait to say: "The suspect was cheating the door? I have a suspect! Martina has an ex-boyfriend who works in a private company in the Shanghai Stock Exchange and loves rock climbing. She has long participated in various bare-hand climbing activities!"
Chapter completed!