Just when the Xu family was turned upside down, the comrades of the trace examination department informed Yang Zi that the trace test taken from the BMW car had the results, and when Yang Zi heard it, he hurriedly came to the trace examination department and found Robin who was in charge of Xu Zhanfei's case.

"Team Yang, this is a total of eighteen sets of shoe prints that you extracted from the BMW car, and a total of four hundred and thirty sets of shoe prints extracted from the ground around the car. In order to facilitate the distinction, we are now numbered A, B, C, D, because there are left and right, so it is subdivided into A left, A right, and so on. ”

Robin said as he divided the printed shoe print rubbings in the order of ABCD, and then handed them to Yang Zi to see.

Yang Zi spread the rubbings on the table in front of Robin and observed them one by one.

Robin pointed to the left and right rubbings numbered A and said: "This is a pair of size 41 men's leather shoes left by the shoe prints, pay attention to here, the left and right heels are seriously worn, indicating that the owner of the shoes is walking with the center of gravity of the body leaning back and tilting outward, generally people with this walking posture are basically because the body is heavier, therefore, it can be inferred that the owner of the shoe weighs at least 170 pounds or more." ”

"The soles of these shoes are also made of genuine leather, and the price will not be very cheap, combined with the owner's figure, I deduce that the deceased was wearing, and deliberately compared it with the shoes of the deceased in the physical evidence, and the weight of the deceased reached 180 pounds, which all confirm that the No. A shoe print was left by the deceased."

Yang Zi nodded, in his impression, the shoes Xu Zhanfei was wearing were indeed size forty-one, and when he checked it, he also found that the soles of the shoes he was wearing were made of cowhide soft soles.

Robin put the No. A rubbings aside and took the No. B rubbings, there were more footprints belonging to B, and the postures left by the shoe prints were also richer.

He pointed to the B rubbings and said to Yang Zi: "This is a pair of 39-yard men's liberation shoes left by the shoe prints, Yang team, you look carefully, B left heel has traces of degumming and breaking, B right shoe front foot middle broken, the entire sole is seriously worn, these traces are left after long-term wear, indicating that the owner of the shoe is living in poverty, at least this pair of shoes has been worn on the foot for a long time and has not been replaced." ”

"Based on your description of the scene of the scene being turned over, I deduce that the owner of these shoes is a man who makes a living by picking up rags or begging, aged over thirty-five and under forty, with a thin build, and his right foot may have a slight mutilation.

"Well, the shoe prints are found under all four seats of the car, and they have been seen in various places around the body, this kid must be the thief who found the car abandoned here, and the door was wide open, and took the opportunity to loot the contents of the car." Yang Zi said while holding up the shoe print in front of him to observe.

"Well, if there is indeed a theft of the items in the car, then it is basically certain that the owner of these shoes only stole Xu Zhanfei's belongings, and has nothing to do with his disappearance and eventual death." Robin nodded in agreement.

He put the No. B rubbings together with No. A, took the No. C rubbings, and also spread them on the table one by one for Yang Zi to see.

"The marks left by this pair of shoe prints are very clear, and the soles are largely unworn, this is a new pair of shoes, at least they have only been worn for a few days before that," he said, fiddling with them. ”

"These shoes are 43 size Adi men's basketball shoes, and there are no traces of wear and tear before and after long-term wear, and the shoe prints suggest that the owner of the shoe is in action, and the left and right feet are evenly balanced, but there is a slight weight on the toe of the shoe than other places, and it cannot be seen if you don't look closely."

"What does this mean?" He seemed to be talking to himself, and it seemed like he was asking Yang Zi.

Yang Zi didn't speak, he was equivalent to a layman in this regard, instead of making a tiger and talking ignorantly, it was better to listen to Robin, a colleague who had worked in the trace examination department for ten years and had a very deep knowledge of the sole footprints, to explain to himself, and to learn from him.

Sure enough, Robin didn't wait for him to speak, so he continued: "This shows that the owner of these shoes is a martial arts practitioner, with a height of at least one meter seven or eight, an even posture, and a free control over his own strength. ”

After finishing speaking, seeing that Yang Zi did not say anything unusual, he put away the No. C rubbing, spread the No. D rubbing flat, and then pointed to Yang Zi and said: "This is a pair of thirty-five size, Nike brand women's sneakers, Yang team, look at these two, similar to the situation of No. C rubbing, it is also a new shoe, the entire sole is evenly stressed, or only the toe of the toe is slightly forced." ”

"The owner of this pair of shoes is more than one meter six tall, with a medium physique, an even figure, and he is also a martial arts practitioner, and when his toes touch the ground, he is tightly clasped to the ground, and his body is tense and on guard."

After he introduced Yang Zi, he had quickly sketched out the body characteristics of the criminals in his heart, a man and a woman, both of whom were martial arts practitioners, the male was more than 1.78 meters tall, and the female was more than 1.6 meters tall, and their physiques were all average.

Yang Zi patted Robin on the shoulder and thanked him excitedly, the information provided by Robin was too important, at least he could further grasp the situation of the criminals, but unfortunately when Xu Zhanfei's BMW car was found in Choke Horse Mountain that day, Robin had another mission and could not go with him, otherwise he should be able to grasp more valuable clues.

Hearing Yang Zi say this, Robin asked him as if he remembered something: "When you were inspecting the surroundings of the vehicle that day, did you follow the road to the edge of the cliff to see it yourself?" ”

"Nope." Yang Zi shook his head, and then said that because he was anxious to find Xu Zhanfei's whereabouts that day, he knew that the bottom of the cliff of Choma Mountain might be Reed Town, so he went over directly after contacting Director Liu, and did not investigate the path leading to the top of the mountain and the top of the cliff.

He also said that after Xu Zhanfei's body was found in Reed Town, he was busy investigating his death, and considering that a lot of time had passed, he did not arrange for anyone to investigate the scene of the lost car.

Robin nodded while listening, and suddenly asked him, "Team Yang, are you interested in going to Cho Ma Mountain with me to check it out in person?" The temperature in S City has been hot and dry in the past two days, and I heard you say that the road is usually sparsely populated, and it is estimated that you can find a lot of meaningful clues. ”

After a pause, he added: "If we go back to investigate, we can at least find out how the deceased fell into the cliff, whether he was pushed down by the criminals or fell by mistake, which can play a decisive key role in the conviction of the suspect." ”

Yang Zi was overjoyed, Robin took the initiative to ask for help, which is a good thing that he can't ask for, and he is really busy during this time, and he missed the investigation of the accident scene where Xu Zhanfei fell off the cliff, which can be regarded as a mistake in his work.

Along the path behind the Choma Mountain, the two men carried a special toolbox on their backs, and walked up cautiously while carefully searching for possible traces on the roadside.

Robin carefully observed the flowers and trees on both sides of the path, and from time to time he knelt on the ground, and carefully examined the fallen branches, broken grass, and a small stone that had been trampled on with a magnifying glass.

Looking at his patient and meticulous work attitude, Yang Zi admired him, and also learned from him to carefully observe the things around him, hoping that he could also find some abnormal situations, so as to find clues that criminals might leave.

The more they walked, the more rugged they became, and the more strenuous the climb became, but Yang Zi and the two of them were not affected by the harsh environment at all, and they were still patiently surveying like a carpet centimeter by centimeter.

The mountain behind the choke horse mountain here is really as the villagers told Yang Zi, at this time it is still two o'clock in the afternoon, it is the time of the day when the sun is the strongest, but here because of the dense trees, the dense leaves block the sunlight, and the wind blows from nowhere, blowing people around the body cold and swishing.

Some unknown birds were startled by Yang Zi and they were startled from the branches, fluttering and flying around the top of the tree, and the surroundings were even more eerie, and occasionally one or two small animals hid behind the trees and looked at Yang Zi and them curiously, and disappeared in a blink of an eye as if they suddenly felt danger.

I don't know how far they have walked on this path, Yang Zi and Robin are a little tired, but they have been insisting on continuing to march towards the cliff, and it seems that they are about to reach the fork in the road that the villagers say, Yang Zi suggests to Robin to go to the well to drink some water and rest, and by the way, see if there will be any clues there.

Sure enough, there was a fork in the road in front of them, and the two of them walked to the left path, and without taking two steps, the sharp-eyed Yang Zi found a bloodstained tissue discarded on the side of the road, he motioned to Robin to look, and after Robin saw it, he carefully picked it up with tweezers and put it in the evidence bag, ready to take it back for further investigation.

The environment next to the well platform is not too dirty, but because the wellhead is half buried under a few stones, some industrious villagers have fenced off a small pool of stones for everyone to draw water from.

Robin and Yang Zi carefully examined the side of the well platform, and found no more traces, so they took water from the pool, washed their faces, drank a few more sips, and each found a stone to sit down and rest.

Robin's eyes were always looking around, observing the shape of every plant and every stone, when suddenly his eyes were drawn to something, and after a few glances, the man followed suit, crouching in front of the thing.

"Team Yang, look at this ......" he turned his head and shouted.