Detective From the Future Chapter 913: Authentication
The next morning.
Municipal Public Security Bureau, Han Bin's office.
There is a table of materials on the desk. They are all materials sent by Zheng Kaixuan. Han Bin personally printed them out. Although they can be viewed on the computer, the paper materials are more convenient for research.
The person involved in the case is Bao Jiansheng, 45 years old this year, from the outskirts of Quancheng. 14 years ago, he was suspected of participating in a robbery and murder case, but the evidence chain has not been sufficient to be convicted.
Among them, a very important clue is a set of shoe prints found on the scene. That set of shoe prints has been printed out by Han Bin for careful study. This is a rubber-soled shoe, which is rare now, but for more than ten years. It was very popular before.
Bao Jiansheng’s footprints were also collected by the police. In order to facilitate identification, they were also printed out with rubber-soled shoes, but after more than ten years, they couldn’t find the exact same shoes, so they could only look for the patterns. Similar shoe prints.
I started researching yesterday afternoon, and I have been researching until this morning. The comparison of these two sets of shoe prints is quite interesting. In order to increase accuracy, Han Bin also asked Zheng Kaixuan to take a few pictures of the soles of Bao Jiansheng’s old shoes. Traces of wear.
At ten o'clock in the morning, Han Bin finally got the result, picked up his mobile phone and called Zheng Kaixuan.
Zheng Kaixuan's voice rang in the phone, "Binzi, are there any results?"
"Yes, I have finished studying."
Zheng Kaixuan asked, "Does the set of footprints at the crime scene match those of Bao Jiansheng a dozen years ago?"
"Incomplete agreement."
Zheng Kaixuan's tone was a little lost, "So we caught the wrong person."
Han Bin didn't answer the question, "Team Zheng, first you answer me one question, is this Bao Jiansheng's right leg injured?"
Zheng Kaixuan hesitated for a moment, "Yes, he was indeed injured. As far as I know, he has broken his leg and underwent surgery."
"When did his leg hurt?"
"About five years ago."
Han Bin said sternly, "According to my research, the footprints of the crime scene 14 years ago should have been left by Bao Jiansheng."
Zheng Kaixuan was a little confused, "Didn't you just say that these two sets of footprints don't exactly match?"
Han Bin's conversation turned, "Although the footprints are not exactly the same, they are indeed the shoe prints left by the same person."
"Binzi, tell me in detail, what do you mean?"
Han Bin explained, "Footprint identification is different from DNA, fingerprints and other evidence. Human DNA and fingerprints will not change, but footprints are not static. With the change of age, physical condition, and mentality, people 'S footprint will also change.
The two sets of footprints have been separated by a full 14 years. What happened in these years will affect and change a person. How can it be the same. "
Zheng Kaixuan asked, "If according to you, Bao Jiansheng's footprint has changed in the past fourteen years, then how do you know it is the same person's footprint."
"This is more complicated to say. Let me give a few simple examples. The first is the length of the feet. This basically does not change. Another change in the footprint is traceable, from the body It can also be reflected in the above.
From the information you gave me, it can be seen that Bao Jiansheng’s current weight is about 180 catties, while his weight was only 120 catties a dozen years ago, and his weight has increased by one-half. , With more than sixty catties of flesh on his back, his walking posture, stride, and gait will all change.
Moreover, his right leg was injured five years ago, which will also affect his walking posture, which also increases the difficulty of identification to a certain extent.
In addition, the footsteps of the footsteps will move backward with age, these changes are traceable. "Han Bin paused and continued,
"As long as these conditions for changing the footprints are reversed, you will find that Bao Jiansheng's footprints are basically consistent with the characteristics of the footprints of the crime scene."
Zheng Kaixuan roughly understood what Han Bin meant, "With your remarks, I feel at ease in my heart, but you have helped me a lot."
"Team Zheng, this is only my personal experience analysis after all. You'd better ask the experts of the provincial government to help you identify them. Their words are much more useful than mine." Han Bin smiled.
Zheng Kaixuan smiled bitterly. He really wanted to ask experts from the provincial government to issue a footprint appraisal, which could also be used as evidence, but the expert Liu couldn’t tell. Mr. Ma still didn’t know when he could be discharged from the hospital. Keep dragging on.
"The appraisal will be okay later. I can wait for Mr. Ma to leave the hospital. The key is that your appraisal results made me feel at ease and clarified the direction of the next investigation. Otherwise, the police will go out and eventually get an oolong. I can't explain it either."
"Brother, if you want me to say that you have more than enough qualifications to get a provincial and departmental footprint appraisal expert, brother, I will ask you to get an appraisal report, so how much trouble will you save?"
Han Bin smiled, "Team Zheng, please don't praise me. It's so easy to get the name of an expert. I still investigate my case steadily."
"You think clearly." Zheng Kaixuan thinks about it. Han Bin is a criminal policeman, and the footprint identification belongs to the technical department. The two are not the same department at all. The police system pays attention to establishment, and an outside department wants it. How easy is it to get the title of expert in other departments, even if you are really capable? There are so many capable people, you have to cross that threshold to become your own person, otherwise everything will be useless.
Of course, this is not absolute. When a person stands high enough, the so-called threshold will become his stepping stone.
Let’s think about it differently. Han Bin is a squadron leader at such a young age. In a few years, he will achieve even higher achievements. If he solves a few well-known major and important cases, his proficiency in footprint identification will spread like wildfire. It was not that he took the initiative to ask for the title of expert from the provincial government, but the technical department of the provincial government took the initiative to invite him.
The two chatted for a while~IndoMTL.com~Han Bin mentioned Bao Xing, "Team Zheng, I have a colleague in the city bureau called Bao Xing. He is a good guy and has been working under me for a few days. I’m at the provincial office. It should be in the Criminal Investigation Corps. If you see it, please help me take care of it."
"Bao Xing, yes, I took it down. When I see you later, I will talk to him." On the other side of Zheng Kaixuan's phone, someone seemed to call him, "Brother, I'm busy, let's talk back."
"Okay." Han Bin responded, and then hung up the phone.
The reason why he mentioned Bao Xing was not a temporary motive. After all, Qindao went out, and the relationship between the two people and Han Bin is good. One is Han Bin’s leader and the other is Han Bin’s subordinates. They A good relationship between the two is also good for Han Bin.
Both of them are in the provincial government, maybe Han Bin will be able to use them in the future.
As for asking Zheng Kaixuan to take care of Bao Xing, it was just an excuse to bridge the two of them. Bao Xing was transferred to the provincial government based on his father's relationship. His father's position is higher than Zheng Kaixuan's. Who will take care of him in the future? I really can't tell.
After finishing busy, Han Bin cleaned up the table and shredded all the documents on it. The Provincial Criminal Investigation Corps are all major cases. Han Bin doesn't want these materials to be passed on from his hands.