civil forensic

Chapter 1310 Survey

Chapter 1310 Survey

While Nicha was on the phone, Jiang Yuan, accompanied by Zhong Renlong, searched the entire room and went upstairs to check the rooftop.

There are even more traces left on the rooftop.

Criminals outside of China don't pay much attention to their footprints, mainly because few people are caught for this. Criminals cannot learn relevant anti-reconnaissance techniques in prison universities, and they don't really study, let alone foreign information.

When it comes to Jiang Yuan's level, he does footprint identification just like DNA identification more than 20 years ago. As long as the case involves the collection of blood, semen and hair, he can directly solve the case.

Jiang Yuan carefully looked at the footprints on the rooftop, then looked at the ropes and other objects left there, then looked at Zhong Renlong and said, "The way this rope is tied should be quite special. Can it be traced back to its source?"

"It's the way the special police tie things up." Zhong Renlong responded in a low voice.

They have just investigated this information.

Although rappelling is just jumping with a rope tied to it, as a tactical subject it is actually extremely difficult. From equipment configuration, to rope inspection and maintenance, how to choose load-bearing brackets, and different ways of tying ropes in various situations, to rappelling techniques, strategies for dealing with special situations, etc., the average active military and police officer may not be able to complete them at a high level.

For example, during the rehearsal of the National Day military parade, the Indian special forces failed in a rappelling attempt and three people fell.

Logically speaking, the special forces should be the most well-trained troops, and the National Day parade should have been conducted by selecting the best of the best. During the rehearsal, they should have completed their training and were at their peak. However, they were still able to fall. This was mainly because of India, but it also indirectly shows that rappelling is indeed difficult, at least more difficult than 18 people riding a motorcycle.

The rope on the rooftop is itself evidence. Where it came from, how it was obtained, etc. are all clues. Similarly, where to tie the rope and how to tie it can also be very telling.

Being able to select the strongest object on site that can be tied to something is an ability.

Some of the more skilled ones even have the ability to temporarily modify the brackets.

Otherwise, if an 80kg male is not careful, the acceleration of gravity combined with the force generated by his thick legs can easily make the person tied to the small steel bar have to replace his head with a steel shell.

"The murderer should have stayed here for a while." Jiang Yuan followed the footsteps and came to a sheltered place on the rooftop.

This is a square protrusion, about two meters high, three meters long and wide, with things like ventilation fans placed inside.

Jiang Yuan asked someone to take photos of the messy footprints on the ground, and then searched the wall carefully again, and then said: "Send someone to brush this wall to see if the fibers can be brushed out. It would be even better if sweat stains can be brushed out. The murderer is waiting here."

Zhong Renlong nodded repeatedly, then called the technician up using the intercom.

In general, police in various countries do not like to use trace evidence in small cases. It costs eight or one thousand yuan to use it once. Just painting a few spots on a wall like this will cost tens of thousands of yuan, and there may not be any gains. But it doesn't matter in this case. No one frowned at the cost.

If, as Jiang Yuan said, sweat stains can be found, then direct DNA identification will basically confirm the suspect. Even if only fabric fibers are found, that is also pretty good. As long as the murderer's clothes and so on can match, it can be considered very good indirect evidence.

Jiang Yuan finished inspecting the rooftop and went downstairs again, asking Wang Chuanxing to provide additional information: "The murderer's stride on the rooftop was relatively short compared to the length of his legs. He must have been specially trained. This also strengthens the evidence that he was in training..."

"Can you tell by the length of the legs?" Zhong Renlong had just put down the walkie-talkie when he felt like he had heard something extraordinary again.

Jiang Yuan nodded naturally: "The steps in the bedroom are normal, you can see the length of the legs, and the steps on the rooftop are specially trained steps..."

"Oh..." What else could Zhong Renlong say? He just took note of it silently. Next time if he encountered a case that required long legs to solve, he would find Jiang Yuan.

"The murderer stayed on the rooftop for a while, and when the time was right, he found the most suitable location without any hesitation, tied the rope, and then descended. Judging from the footprints on the rooftop, the murderer did not collect the necessary information, which means that an accomplice provided him with information, or there was an insider." Jiang Yuan went on to make his judgment.

Zhong Renlong hurriedly took notes and felt the pressure of handling the case was slightly reduced.

Jiang Yuan had clues that kept popping up one after another. With the ones he had now, even if half of them turned out to be non-existent, the rest would be very useful.

Nicha below also felt hope. The most feared thing about this kind of case is that it is delayed for a long time. The second greatest fear is that there are no clues and results in the early stage, which will lead to crazy attacks by media reporters.

For someone like Jiang Yuan, who provides a large number of clues in one breath, even if the case cannot be solved immediately, he can have a chance to breathe.

Sometimes, you can even get some praise.

Jiang Yuan completed the complete investigation of the scene and then returned to the forensic autopsy room with the body. The British-style Jacob was already waiting there.

He elegantly took Jiang Yuan's coat and handed him his white coat, then said cheerfully, "The congressman's body is quite rare. How do we dissect it?"

"Just follow the normal process, but be more careful and do a more comprehensive toxicology test." Jiang Yuan had undergone a surface examination and was not so keen on an autopsy itself.

Judging from the scene, the murderer was very decisive when killing people. He did not have much contact with the victim. It is very likely that he just cut the victim's neck with a backhand knife and that was it.

In this case, the body can't provide much direct evidence. In contrast, toxicology testing can prove the victim's condition from another perspective, whether he took sleeping pills, whether he took drugs, or was poisoned, etc.

Jacob responded quickly, then brought Jiang Yuan to the corpse, sharpening his knife and looking at the congressman lying flat on the ground.

"It's quite fat, and it's difficult to cut open." Jacob patted the congressman's belly lightly. It was plump and felt like a large piece of fresh tofu.

"Let's cut it open first." Jiang Yuan took the scalpel and drew a long "I" from the center of the deceased's body.

However, unlike usual times, the deceased had too much abdominal fat and his head could not be pulled up at all.

Therefore, someone needs to stand on the side, pull away the dangling fat with their hands, then cut it again, pull away the fat again, and cut again...

Jiang Yuan, a congressman who usually has a big belly and thick abdominal fat, had to undergo three surgeries before he could see the structure underneath.

Jacob also widened his eyes and grabbed the congressman's abdominal fat with his hands, trying to make it as easy as possible for Jiang Yuan to cut.