Chapter 588: Digging Deeper

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There are many ways to infer age through forensic science. To sum up... someone wrote a book on it, 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 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. 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 the birth certificate. Are these eucalyptus also falsified?"

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 Director Tang Xiaobo who had been silent next to him. No one showed any expressions of plans, and then they continued:

"Zhang Enfan's evaluation of his nephew Zhang Haobin was rough and lustful. I thought that he didn't know Jiao Lina's sex. If his evaluation did not include Jiao Lina's sex, how would it be reflected? Zhang Enfan evaluated his nephew, There is no need to dig into the cake. 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, considering what Meng Chengbiao said, there should be no problem in being suspicious.

Jiang Yuan asked: "Do you think he has done other things?"

"He has done a lot of things." 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 make big things. I think it is very good." Maybe, 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 changes his fortune". 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 criminals. 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 may 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 was just sitting on the fence.

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 to be honest, it is more appropriate to end the investigation of this case at the current stage.

It is obviously a waste of resources to simply pursue a heavy sentence... However, digging deep around a person or a series of events is also a way to solve a case.

Thinking of this, Jiang Yuan patted the table twice and said, "Captain Meng, you continue the interrogation according to your ideas. Wang Chuanxing, you should look through the cases of injury and sexual assault in the past two or three years, not only in Litang Township, but also in the surrounding villages and towns, and show them to me later. The number should not be large."

After thinking for a while, Jiang Yuan said, "Look through the missing cases carefully and sort them out later."

Litang Township is also in Ningtai County, which means that Jiang Yuan has screened all the local serious cases.

However, Jiang Yuan originally screened the cases in the entire county. Some minor injuries that may not meet the standards of serious cases, or simple indecent assault cases, or cases outside the county, are all outside the scope.

In addition, if a woman like Jiao Lina has no relatives and no one is sincere in looking for her after she disappears, the police will have no way of knowing.

A few people agreed and went about their business.

Although they all raised objections to each other, they were all of the same mind in killing the villain.

Jiang Yuan was prepared to wait until the Zhang family case was over before continuing to do small cases, and at this time he did not change his original intention and continued to work.

He did not look for cases with little evidence, but only for cases that collected a lot of evidence but were not further processed.

Especially cases of minor injuries and indecent assault.

In Jiang Yuan's impression, cases of minor injuries are not difficult to investigate. Generally speaking, such cases are caused by various reasons, and both parties fight each other. If no one is injured, it is a typical public security case, and the maximum mediation, apology, and compensation can be detained for 15 days.

If someone is injured, then whoever is seriously injured is right, and a minor injury of the second degree will be sentenced to several months in prison, and a serious injury of the second degree will be sentenced to several years in prison.

In a place like a county town, the two parties in a fight may know each other, or they can know which side they are from after a little questioning, so the difficulty of handling is not in the investigation.

Those who ran away and could not be found are more interesting.

Jiang Yuan specifically focused on this type of case, and the method he used was the same as before, first remembering the fingerprints, footprints and other information of the Zhang family, and then directly comparing them with the photos in the case.

In less than a day, Jiang Yuan really matched a case of indecent assault, or, it can be called an attempted rape case!

Zhang Haobin's fingerprints appeared on the backpack carried by the victim, but because the comparison was slightly difficult, it was not matched.

Of course, one case of indecent assault was not enough. Just when Jiang Yuan was thinking about whether to make further efforts or find another way, Meng Chengbiao returned again, carrying "Zhang Enfan's Curse" with him.

"This guy is now asking for meritorious service." Meng Chengbiao smiled and then his expression became serious: "He said that Zhang Haobin had several girlfriends, some of whom were missing."