There are many ways to infer age through forensic science. To sum up... someone wrote a book specifically, with several hundred pages.
Basically, everything from teeth to finger bones to pubic bones to the six major joints to DNA and mitochondria has ways to infer age.
For living subjects, all imaging solutions can be used to identify age, including X-ray, CT, MRI, ultrasound, etc.
However, the errors vary for different plans and locations.
It is not easy to get approval within two months.
"The hospital or the health bureau must have some knowledge. I remember helping people apply for a replacement birth certificate." Shen Yaowei listened to the side and said leisurely.
Meng Chengbiao couldn't help but glance at Shen Yaowei and said with a smile: "Yaowei is a person who can help others. However, I guess the files from 20 years ago need to be carefully reviewed."
"Then let's look for it. Can Yaowei do it?" Jiang Yuan clicked on Shen Yaowei.
Shen Yaowei responded, took out his cell phone and said, "I'll call and ask someone first."
Next to him, Wu Junhao said: "I think we can search the residences of Zhang Xiulan and others again. The birth certificates are still very important, and they may not necessarily be thrown away. When we arrested them, they probably wouldn't have thought of this."
"Okay, you can lead a team over there to look for it." Jiang Yuan agreed.
Meng Chengbiao coughed twice and said, "I have another idea."
"Oh, Captain Meng, tell me." Jiang Yuan put his hands on the table and looked at Meng Chengbiao.
"This Zhang Haobin, I checked his file. In the past few years alone, he has been in and out of the police station because of fights. However, the Zhang family has money and usually pays more aggressively, and the consequences are not serious. …”
When Meng Chengbiao said this, he paused, coughed twice, and said, "What the team just said made me suddenly think that the Zhang family may have falsified their birth certificates. Are there also cases of falsification in these cases?"
Jiang Yuan asked: "For example?"
"Looking for someone to take the blame? Or maybe you hurt someone, turned around and ran away. The victim may not know him and can't find him..." Meng Chengbiao looked at Jiang Yuan and then at the director Tang Xiaobo who had been silent next to him. No one showed any expressions of plans, so they continued:
"Zhang Enfan's evaluation of his nephew Zhang Haobin was rough and lustful. I thought that he didn't know about Jiao Lina's case. How would it be reflected in his evaluation if it did not include Jiao Lina's case? Zhang Enfan would never evaluate his nephew. He knows how to dig out cakes from the ground. There is no need, he can just say it, right?"
Jiang Yuan and others fell into deep thought.
Jiang Yuan nodded secretly. If not for the fact that all veteran detectives are suspicious by nature, based on what Meng Chengbiao said, it should be no problem to be suspicious of LV1.5.
Jiang Yuan asked: "Do you think he has committed other cases?"
"He has already done many cases." Meng Chengbiao was in the mood now, and he was not too polite. He said directly: "Now, one is to see if he has a chance to do a big case. I think it is very possible. It’s not just Zhang Enfan’s evaluation, but also his character. Will a young man who likes to solve problems with violence and has tried rape and murder commit similar crimes?”
The detective present nodded slightly.
As the saying goes, "a prodigal son never exchanges for gold." The gold content of ordinary domestic gold mines is only 2g per ton of ore, which is difficult for ordinary criminal police to see.
The most common violent criminals we see are habitual offenders. Just like men who commit domestic violence, they will not commit domestic violence just once. Only those violent criminals who have served a long sentence are likely to change. But the reason that prompted them to change is probably not a change in their concepts, but a change in their behavioral habits due to their long sentence. In addition, as they grow older, the secretion of testosterone and other hormones in the body decreases, which will also Become less violent.
It is very easy for rapists to become repeat offenders.
The act of rape itself is a sign that control is weaker than desire, and desire will continue to appear.
If the first crime was not punished, then it is not incomprehensible to commit the second crime or the third crime when the desire is high.
"How do you want to investigate?" Jiang Yuan felt that Meng Chengbiao's theory was okay, but the actual situation and the angle from which to investigate were the practical issues before him.
The first thing Meng Chengbiao thought of was the interrogation, and he said: "I think I can ask Zhang Enfan, he might know something. Another one, maybe I can deceive the Zhang family?"
Wang Chuanxing said: "The ordinary Zhang family probably don't know anything. The Zhang Xiulan family probably won't confess their grandson or son."
Meng Chengbiao had to admit that this was indeed a concern.
It was so difficult for Zhang Xiulan and others to confess Zhang Enfan, and it was even more difficult for them to confess their direct descendants.
"But..." Meng Chengbiao was a little reluctant and said: "Zhang Xiulan's family also handles corpses very well. They know when rigor mortis occurs, how to clean corpses, how to make them rot more easily, and how long to keep them..."
"It is indeed bolder than ordinary people." Jiang Yuan nodded.
Mu Zhiyang said: "There are old people in the village who know how to wear shrouds. Zhang Xiulan is not young, so they should have helped."
"It's also a reason." Jiang Yuan said as he was thinking.
From his perspective, there is nothing wrong with the inferences of several people, and there are reasons to overturn them.
Generally speaking, further investigation is needed.
But there is one thing to say: at the current level of this case, it is more appropriate for the investigation to be completed.
Simply pursuing severe punishment is obviously a waste of resources... However, digging deeper around a person or a series of events is also one of the ways to solve the case.
Thinking of this, Jiang Yuan lightly tapped the table twice and said: "Captain Meng, you continue the interrogation as you want. Wang Chuanxing, please report the injury cases and sexual assault cases in the past two or three years, not only in Litang Township, but also in the surrounding areas." Look through everything from all over the country and show it to me later, there shouldn't be many of it."
After thinking for a while, Jiang Yuan said again: "Go through the missing cases carefully and sort them out later."
Litang Township is also from Ningtai County, which also means that Jiang Yuan has screened all local serious cases.
However, Jiang Yuan initially screened cases within the scope of the county. Some minor injuries that may not meet the standards of serious cases, or simple indecent cases, or cases outside the county, were outside the scope.
In addition, if a woman like Jiao Lina has no relatives and no one sincerely looks for her after she disappears, the police will have no way of knowing.
Several people agreed and went about their business.
Although there are objections to each other, everyone has the same mind when it comes to putting the villain to death.
Jiang Yuan himself was planning to wait for the Zhang family's case to end before continuing to work on small cases. At this time, he did not change his original intention and continued working.
He also didn't look for cases with sparse evidence, but looked for cases where a lot of evidence had been collected but not further processed.
Especially minor assault and indecent cases.
In Jiang Yuan's impression, minor injury cases were not difficult to investigate. Generally speaking, such cases involve two parties fighting each other for various reasons. No one was injured. It was a typical public security case. Adjustment, apology, compensation and up to 15 days of detention were required.
If someone is injured, whoever is seriously injured will be the one to blame. A minor injury of the second degree will be jailed for several months, and a serious injury of the second degree will be jailed for several years.
In a place like the county seat, the two parties fighting each other are likely to know each other, or they can know which side they are from just asking, so the difficulty of handling the situation does not lie in the investigation.
The one who ran away but couldn't find anyone is more convincing.
Jiang Yuan specializes in looking for such cases and uses the same method as before. He first remembers the fingerprints, footprints and other information of the Zhang family, and then directly compares them with the photos in the case.
In less than a day, Jiang Yuan was caught in an obscenity case, or it could be called an attempted rape case!
Zhang Haobin's fingerprints appeared on the victim's backpack, but because the comparison was slightly more difficult, it was not matched.
Of course, one molestation case was not powerful enough. Just when Jiang Yuan was wondering whether to keep up his efforts or find another way, Meng Chengbiao returned again, taking "Zhang Enfan's Curse" with him.
"This guy is now asking for meritorious service." Meng Chengbiao said with a smile, and then his expression became serious: "He said that Zhang Haobin had several girlfriends, and some of them disappeared."
(End of chapter)
