Jiang Yuan was at the scene and first examined the lower body of the body, then took a swab from the vagina and rectum of the body, and then returned to the forensic center of the Beijing Bureau with the body.
Although it has been more than a week since the incident, the body is relatively dry and has formed a leathery shape, which has a degradation effect on DNA. If you are lucky, you may still retain a little bit of intact DNA. Then, the machine will amplify it and there is a chance that it can be done.
Or, if the murderer is a pervert and does something like robbing a corpse, it may leave traces.
Of course, it is highly likely that the murderer could not do it, and the more likely that the murderer would be wearing a condom. The layman knows these things, and the forensic doctors naturally understand them, but what everyone bets is that you will make mistakes. The most unacceptable thing is that the murderer made a mistake and the police did not seize the opportunity!
One hour later.
The body bag was brought to the anatomy bed.
"Just cut the bag right away." Jiang Yuan's disposable protective clothing and shoe covers were all taken off in the garbage dump. He changed his set at this time. In short, the expenses for personal protection alone will be hundreds of dollars today.
Miao Ruixiang put on latex gloves, nitrile gloves and cotton thread gloves in one breath, and then picked up scissors to make it hard.
The body looked like a whole in the garbage dump, but when it was about to be transported out, the rotten muscles and skin could not provide support. Whether it was the half-duck neck-like cervical spine that had been gnawed, the limbs that had been bitten off, or the abdomen that had rotted into fried livers, they all had to fight each other and could only be put in a few bags.
"The liver, stomach, pancreas and the like are gone, the intestines are the most left." Miao Ruixiang carefully poured the internal organs and other things into the bucket.
Xiao Si helped him all the way, his whole body was already dirty. At this time, he looked at Comrade Miao Ruixiang who was stroking the remaining broken intestines hard, but he couldn't help laughing: "It's a battle between the penis."
"You go and help." Cui Qishan followed Xiao Si, knowing that he would be mean, but he didn't expect him to start with the zero frame.
Xiao Si said "hoo" and went up to help Miao Ruixiang get rid of the intestines.
Jiang Yuan moved his seat and began to check his chest first.
The deceased's knife was already broken into a concave, but due to the surrounding corruption, there were still some traces of it.
Jiang Yuan gently touched it with his hand for a while and found a broken hole in his ribs. The evidence here is more effective than the opening of the muscles in the rotten area.
Jiang Yuan simulated the route of entering the knife and said, "This is directly poking into the heart. The accuracy is OK, but the technique should not be very proficient."
"Because it was poked into the rib?" Liu Jinghui stood a few steps away, wearing a mask and watching.
Jiang Yuan said with a "hmm" and said, "It's still a bit dangerous if it's broken. If it's professional, it won't be like this. But at an amateur level, it's pretty good, at least I've used a knife."
Liu Jinghui pondered with a "hmm".
Wei Shizhi said curiously: "How can a professional take the knife?"
"Oh, you can cut the knife parallel to the ribs, so the probability of touching is relatively low." Jiang Yuan gestured and explained, and then said: "Amateurs naturally hold the knife. Whether they are poking their chests in front of each other or from behind, they are usually used to erecting the blade. The murderer did the same, but when they were cut in, it can be seen from the state of the broken ribs."
"That's it... If you enter the knife in parallel, it will be difficult to use force if it is a forehand knife. This is also the advantage of a forehand knife." Wei Shi said in confusion: "It is impossible for professionals to be all forehand knives."
"No need to use force." Jiang Yuan's voice was muffled, saying: "The victim is likely to be under control. At this time, if you are not sure, you can directly touch the ribs with your hands and then slowly hand over the knife to ensure that the ribs will not be poked. If you have better skills, you can also ensure that there is no major bleeding."
"Didn't the victim have severe bleeding?" Liu Jinghui is still very concerned about this issue.
"Uncertain. Judging from the location of the injury, if the heart is stabbed, causing pericardial tamponade or ventricular fibrillation, or aorta rupture, it may cause death and there will be no major bleeding." Jiang Yuan did not describe the various possibilities of major bleeding. Major bleeding itself is fatal, and it cannot be proved at this time.
This is the trouble with rotten corpses, but they can provide a lot of information.
Jiang Yuan started from scratch and dissected it all the way, and extracted as many biological samples as possible.
"Brain tissue is corrupt and liquefied, and there is no fracture in the skull."
"The neck is deep, the hyoid bone is intact, and the muscles are not bleeding."
"The lung tissue is corrupt and dark red."
Jiang Yuan has already opened the "temporary +1" at the crime scene, and forensic pathology has disappeared at this time. However, for the current corpse, LV4 or LV5 is more than enough, and it is not necessary.
The dissection was carried out very quickly and there was not much controversy. Jiang Yuan was just in front of his chest and spent a lot of time to give the form of a more accurate weapon as much as possible: single blade, more than 12 cm.
With this conclusion, as a forensic doctor, it can be said that he has fulfilled his duties perfectly.
But as the head of the task force, Jiang Yuan's work has just begun.
"Have the garbage been taken back?" Jiang Yuan left the rest of his life to Miao Ruixiang and came to the anatomy bed next to him.
"The garbage around the body has been pulled back." Cui Qishan responded and said, "It's you. Under normal circumstances, the Forensic Center cannot let so much garbage be sent in."
"It's all the same smell." Jiang Yuan didn't take off his mask, but just slowly changed into a pair of gloves.
"What are you looking for?" Cui Qishan was a little looking forward to it.
"I don't know." Jiang Yuan replied very realistically, saying: "What is the difference between what the murderer is still in the garbage dump and what the residents throw in the garbage dump?"
"Uh..." Cui Qishan was a little stopped and couldn't help but say, "The victim has been dead for more than a week. I don't know how long it has been abandoned. If there is something thrown over with them... it is really difficult to tell if the wind and sun are blowing, insects and rats are bitten."
Jiang Yuan nodded and pulled a bag of garbage that had just been poured out on the dissection table.
In front of him, there were all kinds of vegetable, leaf, fruit and skin bones, various papers, mineral water bottles, broken glass and cans, as well as torn wool and plush toys. In addition, batteries and expired medicines, bricks and broken wood can be seen...
While Jiang Yuan turned around, he divided the garbage into different types.
LV4 garbage sorting was used quietly.
Cui Qishan looked around and initially thought Jiang Yuan was placing different garbage randomly, but soon found that it was different.
"What are your classification according to?" Cui Qishan looked at it for a while and asked.
"It is based on the integrity of the item." Jiang Yuan's answer, but Cui Qishan was uncertain about what he could think of.
Xiao Si said "yes, most of the things thrown away by residents are not for waste. But the reason why the murderer and the victims threw things is not because they were broken or damaged or unwanted. Therefore, among the items found near the corpse, those relatively complete and useful things that are most likely discarded by the murderer."
"That's what it means." Jiang Yuan nodded.
Cui Qishan slapped Xiao Si with a "slap": "It seems you are!"
Jiang Yuan turned his head and said, "I didn't understand it just now. The garbage I took was near the corpse. I just looked through it and there were too few intact objects. I think the garbage dump is not big, so I can use this principle to flip the garbage dump."
"Uh... OK." Cui Qishan naturally couldn't refuse, and turned around and said, "Xiao Si, you can stand before you hit me."
"Shen Yaowei is still in the garbage dump, I'll let him connect with you." Jiang Yuan turned his head and reminded Wang Chuanxing again.
Chapter completed!