The comparison of tooth marks is actually very simple. Wrap a cloth on your arm, spread the mouth of the deceased, put your arms in, and push the deceased's jaw upwards.

But the only problem is that Zheng Yi's teeth are much damaged. I guess there is no way to produce complete teeth marks.

But if the remaining teeth can match the same size, it means that it is the tooth mark left by Zheng Yi, and the possibility is very high.

Fu Shiyi carefully cleaned Zheng Yi's mouth.

It is confirmed that there is no residual blood stain that affects the retention of teeth marks, and then we will proceed to the next step.

The second step is to carefully apply the red pigment to the teeth and gums.

Be careful when applying this process to other parts, otherwise it will also affect the accuracy.

The teeth below are easy to work with, but the top is the hardest to work with.

Just completing this step, Fu Shiyi carefully described it for about two quarters of an hour.

Then, she put a white sleeve on her arm, and asked Zhong Yuehan and Zhai Sheng to lift the body up, one pressed the top of her head and the other pushed the mandibular bone upwards, forming an artificial bite force.

Fu Shiyi put his arm to Zheng Yi's mouth.

Zhai Sheng and the others gave the order and tried their best together.

Although it was not as painful as an autonomous bite, Fu Shiyi asked to exert force, and Fu Shiyi took a breath of cold air.

Zheng Yi's teeth were more than half damaged, but fortunately, there was still half left. Moreover, the molars were basically kept, so it's easier to compare.

Compared with incisors, molars have larger contact surfaces, more contrasting features, and easier to distinguish similarities and differences.

When Fu Shiyi put the two stamps together, Fu Shiyi glanced at them and said confidently: "It's Zheng Yi's."

Zheng Yi's molars are arranged in a more distinctive way. The two molars are not neatly grown, forming a distinctive angle. The tooth marks brought back from the Liu Niang's room also have such angles.

So, it can be determined directly.

When Zheng Yi was tortured, Liu Niang must have met Zheng Yi.

Moreover, Zheng Yi must have been alive at that time, so he bit Wu Niang.

Judging from the blood, there were no missing teeth in Zheng Yi's mouth at that time, his tongue was not cut off, and there were not so many wounds in his mouth.

So……

Fu Shiyi had a guess: "Is it because Zheng Yi bit Liu Niang that his teeth were pulled out? He injured his mouth? He cut off his tongue?"

Zhong Yuehan and the others also agreed, thinking that it must be because of this.

It’s a pity that Liu Niang is missing now.

But the good news is that the range of searchables is reduced.

Leyouyuan.

That day, Liu Niang went to Leyouyuan.

Fu Shiyi went to find Li Changbo and told Li Changbo about this.

There is also good news on the other end of Li Changbo.

He asked someone to ask the servants in several yards near Liu Niang’s home in Pingkangfang, and asked them if they knew each other, so he picked up Liu Niang’s carriage driver.

As a result, someone really knows it.

It is said that the coachman himself has a good relationship in Pingkangfang. He is a regular visitor to Pingkangfang.

There are also many well-known people who speak out from the other end of the brothel, including many of the sons in the families of officials from all over the place.

The Ministry of Revenue, the Ministry of Personnel, the Ministry of Rites, the Ministry of Works, and the well-known wealthy businessmen in Chang'an City.

There are really many people.

But the person who bought Liu Niang in the end was an unknown businessman, whose name was Wei Guoxiong.

It is a grain merchant from Jinling.

Because Liu Niang himself is a lowly person, she has no way to escape from the lowly person and is still under the name of Wei Guoxiong.

Moreover, Li Changbo missed a check on Liu Niang's original household registration.

Liu Niang was originally named Qi Xuan, and she was a niece of the county magistrate of Qi.

But it is unknown whether he is the daughter of the magistrate of Qi County.

When Qi County Magistrate and Yao Xiang's granddaughter divorced, Qi Xuan followed Yao Xiang's granddaughter to leave the Qi family and was taken away by Yao Xiang's granddaughter.

In this case, Qi Xuan either entered the Yao Xiang Mansion’s household registration, or entered the husband’s household registration after marriage, or went to the yamen to have a separate female household.

But Qi Xuan directly entered a low-key family.

Qi Xuan sells herself. It has nothing to do with others.

The madam also remembered this clearly: "It was the first time I saw myself selling my own products in so many years. It was very strange. If you want me to say, why bother?"

But the duck who came to the door was not kind, but just gave a fair price.

Wu Niang was a little capable, and soon gained fame and made a lot of money for the madam.

After Li Changbo learned about this, he said concisely: "Find out the coachman, and ask Yao Shen. He might have met Liu Niang."

Fu Shiyi reminded him: "Maybe the person who stole the waist card was also the one who stole the waist card."

Since Liu Niang is following Yao Xiang’s granddaughter, after the mother and daughter die, it is very likely that she knows that the waist card exists.

And what was lost was the one in their tomb.

The only one who is most suspected is Liu Niang.

When Yao Shen was taken to the Chang'an County Government, he was still a little unhappy and nervous - he was unhappy that he was treated like this, and he didn't know why he was invited.

Li Changbo respected Yao Chong's achievements and was still very polite to Yao Shen. He did not interrogate Yao Shen, but asked Lu Dehua to cook tea and asked himself.

Fu Shiyi stood behind him, listening to his ears while drinking tea.

When asked about Qi Xuan, Yao Shen almost immediately felt embarrassed and hesitant.

He obviously didn't want to mention this person.

But Fu Shiyi and Li Changbo were both excited: It seems that Yao Shen must know Qi Xuan!

Regarding Yao Shen's behavior of shirking responsibility and evasion, Li Changbo said concisely: "Some people do evil with Yao Xiang Mansion's waist card, and we initially suspect that it is Qi Xuan. If you refuse to cooperate, you may end up causing trouble."

Can Yao’s family bear this consequence now?

Yao Shen became solemn: "How could Qi Xuan have the waist-baring card in our mansion? She is not our Yao family--"

"Didn't Sister Ling's waist card be buried in the tomb?" Li Changbo replied softly, explaining: "We have this guess, so we went to take a look. We found that the tomb had been moved."

"Of course, we didn't dig it out and just looked at the appearance."

Finally, Li Changbo also sincerely suggested: "I think, maybe after you go back, you can open the tomb and see what Qi Xuan did. Whether he took away other things besides the waist card."

Liu Niang is obviously hostile to the Yao family. So, will she really only take away a waist card? Will she take the opportunity...

Yao Shen changed his face suddenly and could no longer maintain peace.

Seeing him like that, he seemed to want to fly over immediately and open the tomb to see if Qi Xuan had done anything to his sister.

But he can't leave now.

Li Changbo looked at him with a smile.

Finally, Yao Shen gradually calmed down, hesitated for a long time, sighed a long time, and finally spoke: "I'm too cruel."

?        ? See you tomorrow~ I will take a leave tomorrow~ I will go out to do something~

?

?????
Chapter completed!