Chapter 1224

"That's impossible."

Yang Yuhui and Xue Dehong hurried to Jiang Yuan's autopsy room.

A normal autopsy requires a configuration of at least two people, and most also require a forensic assistant or the like, mostly outsourced or temporary workers.

At such times, the forensic assistant naturally cannot shoulder the responsibility.

Yang Yuhui is the forensic doctor responsible for the autopsy work of the Binshui South Road Park body disposal case. He is a legitimate forensic doctor from the Zheng Guang Bureau, graduated from a legitimate medical university with a legitimate forensic major, and is 35 years old this year. Speaking of which, he isn't very old, but Yang Yuhui's experience is already rich enough, and he has executed and participated in the autopsies of many major cases.

Getting the identity of a corpse wrong is a definite mistake. Yang Yuhui had been recalling the case all the way here, and when he arrived at the place, his whole face was wrinkled.

"Didn't you get DNA that day?" Jiang Yuan asked Yang Yuhui first.

DNA is the gold standard. If the DNA could have been matched, there wouldn't be so many things later.

Yang Yuhui said "Hmm" and said, "I took multiple specimens, but I didn't get any DNA. At the time, I specifically took the auditory ossicles of the inner ear and the proximal ends of the fingernails, but I didn't get any. I should have taken the cementum, but at the time, based on the personal belongings, the height of the corpse, plus the missing persons report, and the identification by the family members, the victim's identity had already been determined, so I didn't do any subsequent testing... Sigh, I should have done it one more time. Are you sure it's not Li Ningxia?"

Because the auditory ossicles of the inner ear are protected by the temporal bone, the degradation rate of DNA is slower. In many mildly decomposed corpses, DNA can be obtained through locations like the incus, but this already belongs to a more advanced DNA testing technology. Generally, a DNA laboratory that invests three or five million and hires one or two fresh graduates can't handle it. In relatively backward provinces like Shannan, it already needs to be sent to the provincial bureau to be done.

Of course, the conditions of the Beijing Bureau are much better. Not only can the incus be done, but if necessary, cementum can also be done.

But cementum is even more troublesome. When taking it, you have to resist contamination, and you have to assist in stripping it under a dental microscope, and then send it to a laboratory with mini-STR technology to try to do it. The detection rate is not high, which means you have to grind several teeth.

If it is an unidentified corpse whose identity cannot be determined, since the Beijing Bureau has the conditions, cementum should be done if it can be done. If not, there is still the Ministry's Physical Evidence Identification Center. Single-cell whole-genome amplification can challenge samples with longer decomposition periods.

But those who have worked know that no one will use several times the time and more funds, especially the resources of higher-level units, to challenge an answer when they have already obtained one, just to ensure nothing goes wrong. This kind of thing is only done in situations like Xu Taining's "success or death."

Determining the identity of a corpse through the corpse's clothing and personal belongings is originally one of the jobs of a forensic doctor, including Jiang Yuan, who often uses this method.

A forensic joke that isn't very funny: How to identify the identity of a corpse the fastest? Look at his ID card.

Especially in the situation where Li Ningxia was missing, Yang Yuhui's performance was above standard.

However, criminal investigation judges heroes by results.

Bumping into the killer when you go out is your ability; being unlucky enough to brush past the killer sixteen times is your stupidity.

A forensic doctor identifying the wrong person, from the perspective of the task force, is naturally unacceptable.

Jiang Yuan instead relieved the pressure for Yang Yuhui: "From the bone age, it's definitely not 38 years old. However, it was your first autopsy that day, and it was a decomposed corpse, unlike me who can see the bone age and so on."

Yang Yuhui gave a wry smile, with a sense of helplessness that he didn't know where to start. He sighed again and verified first: "The uterus was excised. I heard that you saw the age deviation at a glance. Roughly where did you see the bone age?"

"Uh... the ribs and the skull, I guess." Jiang Yuan said a bit reluctantly.

"If the bone age is determined by the ribs and the skull..."

"Long bones can also be seen, the spine can actually also be, and there's the clavicle here..." Jiang Yuan knew what Yang Yuhui wanted to ask, so he started laying out the bones on the spot.

A normal forensic doctor, under normal operation, uses the pubic bone to judge age and so on. Those who can use one more kind of bone have deeper foundations in forensic anthropology.

Yang Yuhui clearly doesn't count.

But he understood instantly. Although Jiang Yuan looked young, his research in forensic anthropology was outrageously strong.

Yang Yuhui was speechless for a while. After a long time, he said again, "What about the clothes? Did she happen to wear the same clothes?"

"It should be the same piece of clothing." Jiang Yuan answered.

"This..." Yang Yuhui thought and felt a bit more spirited, saying, "Does this mean the killer is premeditated?"

"It's possible." Jiang Yuan paused and then said slowly, "Actually, there are some accidental situations, such as the height of the victim's corpse, which is also the same as Li Ningxia's."

"Ah? This..." In Yang Yuhui's mind, various stories burst out instantly.

"The next task is to find the identity of this unidentified corpse." Jiang Yuan didn't want to waste too much time correcting his colleague, so he changed the subject and brought the topic back to the regular track.

Yang Yuhui hurriedly nodded: "I can help..."

"It's not appropriate." Jiang Yuan refused on the spot, and there was no need to explain much.

"That's also true." Yang Yuhui's face couldn't hang on, so he said a few more polite words and left hurriedly.

"We will soothe him later." Zhan Kan recognized Jiang Yuan as his master, so for such a small matter, he naturally stood up to explain on his behalf.

Jiang Yuan didn't take it to heart, turned his head again and said, "The list of missing persons must be prepared. Let's also see if we can match a missing person or something."

"The corpse is not Li Ningxia's. No wonder everything didn't go smoothly during the investigation." Cui Qishan sighed, then looked at the case file, already with a helpless face.

Everything from investigating interpersonal relationships, looking for criminal motives, and even the investigations of image reconnaissance and technical reconnaissance, were all in vain.

Liu Jinghui had been thinking and said, "The key now is whether Li Ningxia herself is still alive. Is she missing, or was she taken away by someone, or is Li Ningxia herself the killer? It can't be a complete coincidence, right?"

As soon as he said this, it became even colder in the autopsy room.

The deceased was wearing the same style and color of clothes and pants as Li Ningxia, and her height was the same as Li Ningxia's. On the day of the incident, Li Ningxia went missing. If one said the two had no connection, that would be challenging the intelligence of the criminal police.

And the result of going missing is often not good. Just look at the previous case; the missing female college student didn't necessarily come back alive.

Xiao Si said at this time, "I think it was a passive disappearance. Because if she had the right to decide for herself, she should have found a way to take her property, right? Hundreds of thousands in cash left in the account, just lying there like that?"

(End of chapter)