"From this person's physical health and toenails, it can be seen that his life is relatively superior, and he is also relatively wealthy, if his feet are taken care of by a pedicure master, it means that the deceased lived a more nourishing life before his death."

"What if his wife helped him trim it?" Xiao Luhan remembered the words of Master Liang, a pedicure worker in the Moling Bathhouse.

This can also show that his life is more nourishing. Women take the comfort and benefit of men, mostly because men have status at home, and most of them have status because men have money in their pockets. ”

"The boat is also an important clue." Zhao Zimeng said thoughtfully.

"Yes, we have to conduct a survey of all the boats on the Qinnan River," Xiao Lao took Zhao Zimeng's words and said, "Fortunately, boats can only stay on the water, and it shouldn't be difficult to find out these boats." ”

"Okay, I'll contact the Passenger Transport Department of Zhongshan Wharf tonight and ask them to send a patrol boat to cooperate with your work, with a patrol boat, your investigation will be much more convenient." Director Wang said.

"Old Xiao, there are two traces of knives and axes on the neck vertebrae of the deceased, how can this be explained?" Although Zhao Zimeng had his own thoughts, he wanted to hear Xiao Lao's thoughts.

"According to the incision and the two knife marks on the cervical vertebrae, the tool of the crime may be an ordinary kitchen knife, if it is a sharp weapon, it is impossible to cut it three times, these two knife marks are relatively shallow, of course, there is a possibility."

"What is possible?"

"The murderer could have been a woman."

"Maybe a woman?" Zhao Zimeng's eyes drew a big greeting, before, everyone didn't think of this step.

Xiao Lao's next question made everyone feel even more confused: "Have you ever looked at the city wall bricks carefully?" ”

You look at me, I look at you, you really haven't "seen" the city wall bricks, and you can't talk about it "carefully" - the comrades really haven't studied those two city wall bricks seriously and carefully.

"The bricks of the city wall were the only objects at the scene of the crime." Xiao Lao's expression was solemn. It's really a fan of the authorities, and the bystanders are clear. Xiao Lao is Guo Lao, his thinking is like radar, as long as it is an area controlled by radar, nothing can escape his thinking.

"Zimeng, where are the bricks of the city wall?" Director Wang looked at Zhao Zimeng and said.

"The bricks of the city wall are in the physical evidence, and we only did a simple cleaning, but we did not pay special attention to it."

"Very good, as long as the bricks of the city wall are still there, then good." Xiao Lao took a few photos from Ma Jianping's hand, and Ma Jianping was looking for photos with city wall bricks among more than a dozen photos, and picked out a total of three.

"These two bricks were certainly not pryed down from the walls temporarily, they weren't antiques, so they weren't used as decorations, and people brought them home mostly to build a wall – or a kennel or something. If these two bricks were prying off the wall, there should have been some attachment on them, and I hope the attachment is not cement - if the attachment is cement, it will be troublesome - however, it is unlikely that the average person will use cement to build the wall, so it is more likely to use earth. ”

"I've seen some of the houses and most of them are made of mud because they're not building kitchens, or kennels, or yard walls." Xiao Luhan said, "It is unlikely that the kitchen and courtyard walls will be demolished for the two city wall bricks, but it is more likely that the dog kennel and chicken pen will be demolished." ”

"Elder Xiao, if the attachment of the city wall bricks is soil, what information can it reveal?" Xiang Daimo said.

"The soil quality is different in different places, some places are loess, for example, near Qingliang Mountain, and some places are red soil, such as the east side of Xihuamen Castle, the murderer will not clean the attachments on the city wall bricks before tying these two city wall bricks to the deceased."

"Yes, as long as the attachment of the bricks is still there, we can figure out what kind of soil it is and where it is." "As long as we can figure out what kind of soil it is, we can narrow down the scope of the investigation, and although it is very difficult to find a needle in a small pond, it is much easier than finding a needle in a large sea." ”

Before ending the meeting, Zhao Zimeng made a summary: "Today, Director Wang personally participated in our case analysis meeting, and he was able to squeeze out time from his busy schedule to care about this case, which is a great support for us; Xiao Lao is also here today, he is so old, he still cares about our work, we have no reason not to do our work well. Under the inspiration of Xiao Lao, our thinking has also been much more open. Next, we will investigate from three aspects, the first is the boat, the second is the characteristics of the deceased, and the third is the bricks of the city wall, whichever side the investigation focuses on the banks of the Qinnan River. ”

After the analysis meeting ended, Zhao Zimeng arranged for Ma Jianping and Lu Qian to prepare the content of the notice, and they must take it out tomorrow morning, and then post it and send it out.

After that, except for Ma Jianping and Lu Qian, everyone else went to the physical evidence department with Xiao Lao.

Two wall bricks lie in the corner of room 2 of the physical evidence site, and the wall bricks are placed in two snakeskin bags.

Ling Hu Yunfei opened the two snakeskin pockets, revealing two black, smelly city wall bricks - although they had been cleaned, they still smelled.

Xiao Luhan put on his gloves and poured the two city wall bricks out of the snakeskin pocket.

The bricks of the two walls are the same size: 48.5 centimeters long, 28.5 centimeters wide, and 20 centimeters thick. There is still some text on it, but due to the long-term erosion of wind and rain, the text has been blurred.

Xiang Daimo put on a mask, half-squatted, and gently scraped the brick surface with a knife, under a layer of black silt, there was indeed a layer of soil, but due to the soaking of the silt, this layer of soil had been polluted to brown. The thickness of the soil layer is about 0.6 centimeters - in some places there is none, in some places there is not - and the mud will not be evenly smeared when the workers are building the walls. Chen Jie was a little disappointed - the 0.6 centimeter thick soil could not withstand the silt and sewage soaking for two months.

"Xiao Luhan, you turn the bricks of the city wall over." Zhao Zimeng was unwilling.

Xiang Daimo put on a mask and gloves and turned the two city wall bricks over.

"There's a notch in this brick." Lin Di squatted on the ground and pointed to another brick road of the city wall.

At Lindy's finger, there was indeed a "V" shaped notch in the bricks of the city wall, and the lower part of the notch was filled with earth. The location of the incision is at the right angle in the middle of the bricks of the city wall, to be precise, it is a gap, the depth of the gap is about five centimeters, and the maximum width of the opening is about two and a half five centimeters.

Xiang Daimo used the tip of the knife to slowly scrape off the black mud on the surface of the gap.

Linghu Yunfei didn't know where to push a surgical cart, and moved the city wall bricks to the surgical cart, the person squatted on the ground very uncomfortable, his eyes could not see the gap at close range, and the light was relatively dim.

Now, the posture of the project agent is much more comfortable. Xiao Lao asked the attendant to bring an emergency lamp, and the light of the emergency light was very strong, so that he could see the color of the soil inside the gap.

Xiao Lao laid a blank sheet of paper in the operating car.

Xiang Daimo used the tip of the knife to take out the soil in the gap little by little, and spread the soil out on the white paper.

Under the strong light of the emergency light, the color of several stalls of soil changed from dark to bright, from dark black to light yellow, and then from light yellow to positive yellow, probably because it was soaked in water for too long, and the loess had a certain humidity and viscosity.

"The vicinity of Huashen Town and Qingliang Mountain are this kind of soil." When I was a child, I lived in my grandmother's house for a while, every rainy day, the road was muddy, no matter what shoes you wear, there will be a lot of mud stuck on the shoes, sometimes, the more sticky, only with a stick to remove the mud, can you continue to walk." ”

Xiao Lao said as he pinched a little soil with the thumb and index finger of his right hand, and then twisted it, "Director Wang, you see - this kind of soil is indeed very sticky, when building a wall, as long as this kind of soil is used, it is precisely because this kind of soil is relatively clayey, so it can be attached to the gap of this city wall brick for a long time, because of the strong viscosity, the closure of the soil is relatively strong, and the outside silt cannot penetrate into the gap." ”

The author mentioned this Huashen Town earlier, and its location is in the southwest of Liuyedu, two or three miles away from the scene of the crime.

"Director Ma led us to Huashen Town, and many people in Huashen Town have this kind of city wall bricks." Xiao Luhan said, his meaning is very clear: many homes have city wall bricks, and it is not easy to find the traces of the murderer.

"Elder Xiao, along the Qinnan River, where else is this yellow-colored clay?"

"I only know that Huashen Town and Qingliang Mountain are this kind of soil, I haven't studied this problem specifically, other places, we can investigate, this shouldn't be a difficult thing." Xiao Lao Dao.

"Elder Xiao, how do you know that Huashen Town and Qingliang Mountain are of this kind of clay?" Xiang Daimo asked.

"Didn't I just say that! My grandmother's house is near Huashen Town, near the river, and as for Qingliang Mountain, we once investigated a case in Qingliang Mountain, and it was a rainy day, and the road was very muddy, so I was particularly impressed. ”

Therefore, Zhao Zimeng decided to conduct a field investigation on the soil on both sides of the Qinhuai River tomorrow.

At eight o'clock in the morning of August 1, a patrol boat stopped on the river in front of Xihuamen Castle, and at eight o'clock, two cars parked outside the south gate of Xihuamen Castle, and Zhao Zimeng and his party of nine people walked down from the car. In addition to the five comrades of the criminal investigation team, Xiao Lao and Ma Minglong, there are also two fresh faces, one is a soil expert specially invited by Director Wang, the old expert's name is Ji Queqi, a professor at Jingxi Agricultural University, and the other is Professor Ji's assistant, his name is Hu Qiwei, and he is about 35 years old.