civil forensic

Chapter 1230 I can do it too

Chapter 1230 I can do it too

At the scene, Jiang Yuan first examined the lower body of the corpse, then took swabs from the vagina and rectum, and then took the corpse back to the Forensic Center of the Beijing Bureau.

Although it has been more than a week since the incident, the body is relatively dry and has become leathery, which slows down the degradation of DNA. If you are lucky, there may be a little bit of intact DNA left, and when the machine is amplified, there is a chance that it can be produced.

Or, if the murderer is a pervert and did something like necrophilia, there might be traces left behind.

Of course, there is a high probability that it cannot be done, and the murderer is more likely to be wearing a condom or something like that. These things are understood by laymen, and forensic doctors naturally understand them, but what everyone is betting on is that you will make mistakes. The most unacceptable thing is that the murderer made a mistake and the police didn't seize the opportunity!

after an hour.

The body bag was brought to the dissection table.

"Just cut the bag." Jiang Yuan had taken off the disposable protective clothing and shoe covers he had worn in the garbage dump and put on a new set. In short, today's personal protection expenses alone would cost several hundred.

Miao Ruixiang put on latex gloves, nitrile gloves and cotton gloves in one breath, then picked up scissors and started working vigorously.

The corpse looked like a whole in the garbage dump, but when it was time to transport it out, the rotten muscles and skin could no longer provide support. Whether it was the cervical vertebrae that had been gnawed like half a duck neck, the limbs that had been bitten off long ago, or the abdomen that had rotted into a fried liver-like state, they had all been separated and finally had to be packed back in several bags.

"The liver, stomach, pancreas and the like are gone, and the majority of what's left are the intestines." Miao Ruixiang carefully poured the internal organs into the bucket first.

Xiao Si had helped all the way here, and his whole body was dirty. Looking at Comrade Miao Ruixiang who was pulling the remaining broken intestines, he couldn't help laughing: "It's a battle of intestines."

"You go and help." Cui Qishan followed Xiao Si. He knew that he would be a bad-mouthed person, but he didn't expect that he would start with zero frames.

Xiao Si let out a "huh" and went over to help Miao Ruixiang roll out his intestines.

Jiang Yuan moved to another position and began to check the chest cavity first.

The place where the victim was stabbed had rotted into a dent, but because of the surrounding corruption, some slight traces could still be seen.

Jiang Yuan touched it gently for a while and found the cut on the ribs. The evidence here is more effective than the cut in the rotten muscle to prove the knife wound.

Jiang Yuan leaned sideways to simulate the path of the knife, and then said: "This is directly stabbed into the heart. The accuracy is OK, but the technique should not be very skilled."

"Because it poked the ribs?" Liu Jinghui stood a few steps away and watched with a mask on.

Jiang Yuan hummed, and said, "The blade has been damaged, which is still a bit dangerous. If you are a professional, you won't cut like this. But for an amateur, it's pretty good, at least you have used a knife before."

Liu Jinghui groaned and pondered.

Master Wei asked curiously, "How do professionals cut?"

"Oh, you can cut parallel to the ribs, so the probability of touching them is lower." Jiang Yuan gestured and explained, and then said: "Amateurs hold the knife naturally. Whether stabbing the chest in front or from behind, they are used to holding the blade upright. The murderer did the same thing, but the cut went in, which can be seen from the state of the ribs."

"Is that so... If you use a forehand knife, it will be hard to use force if you use a parallel knife. This is also the advantage of a backhand knife." Wei Shijian said doubtfully: "Professionals can't all use forehand knives."

"No need to use force." Jiang Yuan said in a muffled voice, "The victim is likely under control. If you are unsure, you can just feel the ribs with your hands, and then slowly pass the knife to ensure that you don't pierce the ribs. If you have better skills, you can also ensure that there is no heavy bleeding."

"Didn't the victim suffer heavy bleeding?" Liu Jinghui was still very concerned about this issue.

"Not sure. Judging from the location of the injury, if it hit the heart, causing pericardial tamponade or ventricular fibrillation, or aortic rupture leading to rapid shock, it could be fatal, and there would not be heavy bleeding." Jiang Yuan did not describe the various possibilities of heavy bleeding. It was impossible to prove that heavy bleeding itself was fatal.

That's the trouble with corpses, but they can provide quite a bit of information.

Jiang Yuan started from the beginning, dissected the entire body, and extracted as many biological samples as possible.

"The brain tissue is corrupt and liquefied, and there is no skull fracture."

"Deep neck, hyoid bone intact, no bleeding in muscles."

"The lung tissue is rotten and dark red."

Jiang Yuan had already opened the "temporary +1" for the crime scene, so there was no need to open the forensic pathology. However, for the corpse in front of him, LV4 or LV5 were more than enough and were not needed at all.

The autopsy was carried out quickly and there were not many controversial points. Jiang Yuan only spent a lot of time on the chest area, trying to give a more accurate description of the shape of the murder weapon: a single-edged blade, more than 12 centimeters long.

With this conclusion, it can be said that I have perfectly fulfilled my duties as a forensic doctor.

But as the head of the task force, Jiang Yuan's work has just begun.

"Has the garbage been brought back?" Jiang Yuan left the rest of the work to Miao Ruixiang and went to the dissection bed next to him.

"All the garbage around the body has been brought back." Cui Qishan responded, "It's just you. Under normal circumstances, the Forensic Center would not allow so much garbage to be brought in."

"They all stink the same." Jiang Yuan didn't even take off his mask, he just slowly changed into a pair of gloves.

"What are you looking for?" Cui Qishan asked with a little anticipation.

"I don't know." Jiang Yuan answered very honestly, "What's the difference between the things that the murderer left in the garbage dump and the things that the residents threw in the garbage dump?"

"Uh..." Cui Qishan was a little confused by the question, and couldn't help but say: "The victim has been dead for more than a week. I don't know how long the body has been abandoned. If there are things thrown here... it is really difficult to distinguish due to the wind, sun, insects and rats."

Jiang Yuan nodded and started to fiddle with a bag of garbage that had just been poured out on the dissection table.

In front of him, there were all kinds of vegetable leaves, fruit peels, bones, various types of paper, mineral water bottles, broken glass and cans, torn wool and stuffed toys, in addition, there were batteries and expired medicines, bricks and broken wood...

As Jiang Yuan flipped through the garbage, he sorted it into different types.

LV4 garbage classification was put into use quietly.

Cui Qishan tilted his head and looked, and at first thought that Jiang Yuan was just randomly placing different garbage, but soon he found something different.

"What rule do you follow for this classification?" Cui Qishan looked at it for a while and asked.

"It depends on the condition of the items." Cui Qishan could understand part of Jiang Yuan's answer, but he was not sure.

Xiao Si hissed, "Yes, most of the things that residents throw away are unwanted and considered waste. But the murderer and the victim didn't throw things away because they were broken or damaged or they didn't want them anymore. So, among the items found near the body, those that are relatively intact and still usable are most likely discarded by the murderer."

"That's what I mean." Jiang Yuan nodded.

Cui Qishan slapped Xiao Si with a slap: "You are so shameless!"

Jiang Yuan turned around and said, "I didn't think it through just now. The garbage I took was all near the body. I just searched it and found too few intact objects. I think the garbage dump is not big, so let's search the garbage dump based on this principle."

"Uh... okay." Cui Qishan naturally couldn't refuse, so he turned around and said, "Xiao Si, you go ahead."

"Shen Yaowei is still at the garbage dump. I'll ask him to contact you." Jiang Yuan turned around and reminded Wang Chuanxing.

At this time, Wei Shixun couldn't help but say: "Master, you always like to ask Shen Yaowei to do things recently. I can also do this kind of thing!"