There were two main reasons why the Wuhua Mountain Joint Investigation Team's office was located at the Yuhua Branch. The first reason was that it was closer to the crime scene. Secondly, the technical team that investigated the crime scene and the forensic doctors that conducted the autopsy were all from the Yuhua Branch. It would be easier to communicate with each other when handling cases here.
The Joint Investigation Team's office was located in a large conference room. Han Bin used to work here often, so it saved him the time to familiarize himself with the environment.
After returning to the branch, Han Bin poured a big cup of tea and called Zeng Ping and Li Hui to the conference room. He told them about Dong Yubei's case.
After understanding Dong Yubei's murder, Zeng Ping also thought that the two cases were directly related. However, further investigation was still needed to determine if they were committed by the same murderer.
After that, Han Bin went to Deputy Bureau Chief Dai Minghan's office to report to the old leader about his recent work and the Wuhua Mountain case. Dai Minghan was very happy to see Han Bin's growth. He gave him a few words of encouragement.
As for the Wuhua Mountain case, Dai Minghan did not ask too much about it. The case was still under the jurisdiction of the Municipal Bureau's Criminal Investigation Team. They were only responsible for assisting. Although he was the deputy bureau chief of the branch, it was not his place to interfere with Han Bin's investigation.
At noon, Han Bin and the others had lunch at the Yuhua Branch. Han Bin met many of his old colleagues. The news of Han Bin's promotion to the Second Squadron Leader of the Municipal Bureau's Criminal Investigation Team was no longer a secret in the Yuhua Branch. Many people congratulated him.
Han Bin had returned to his hometown in glory. However, in front of his old leader and colleagues, Han Bin still maintained enough humility. His attitude was no different from before.
Other than some familiar faces, there were also some young faces that kept looking at Han Bin.
A female police officer in her twenties greeted her companion, "Look, that's Captain Han Bin who was transferred to the Municipal Bureau. He's quite handsome!"
"This Captain Han has solved many big cases. When I was in the police academy last year, I heard about his deeds. At that time, the teacher even analyzed his case experience. I heard that not only is he good at criminal investigation, but he is also proficient in identifying footprints."
"Tsk tsk, he's really amazing. He looks like he's about the same age as me, but he's already a squadron leader of the city's Criminal Investigation Unit. I'm not even a team leader now. Damn it, when can I make it big?"
These officers had not been in Yu Hua Branch for long, but they had all heard of Han Bin's deeds. Some of them were here to watch the show, while others treated Han Bin as a role model.
People like Han Bin who repeatedly solved major cases, promoted several times in just two years, and became the squadron leader of the city's criminal investigation team at such a young age were extremely rare in the entire Qingdao Public Security System.
In the afternoon, the investigation team members returned one after another. Han Bin held a case summary meeting in the conference room.
Han Bin sat at the head of the table. On his left were his colleagues from the Municipal Bureau, and on his right were his colleagues from the Yuhua Branch.
Han Bin glanced at everyone and said in a clear voice, "Everyone knows about the case, so I won't repeat it here. After investigating the crime scene, everyone split up to investigate. Tell me about the progress of the investigation. "
Li Hui coughed lightly, "My situation is rather simple, so I'll explain it first to get everyone's attention.
After Captain Han's reminder, I brought people to search the scene carefully. I found a bunch of manuals in the drawer of the closet, and I also found an instruction manual for a small camera.
The brand of this camera is called Camel, and it's a small camera made in the United States. The model number is V11. I found a photo of this camera online, and everyone can take a look. "
Li Hui walked behind the conference table, turned on the projector, and played a slide of the small camera.
Han Bin said, "I'll send the photo to the case handling group later. Everyone should pay more attention when investigating the case. The camera that the suspect lost is very likely to contain key evidence, so it's very important."
Zhu Jiaxu then reported, "I went to the Qingdao Photography Association to investigate. Jin Zhiwen is a member of the association, and he often participates in the association's activities. He has also participated in some of the association's excellent exhibitions, but he has no record of winning any awards. Among his friends in the photography association, no one has ever heard of a boss buying his work at a high price.
In addition, I also went to the telecommunications company and printed out Jin Zhiwen's recent phone records, but I haven't had time to check them in detail. "
The next person to report was Wang Xiao, who was in charge of visiting the surrounding neighbors.
Wang Xiao held a document in his hand. "There are four households on each floor of the building where Jin Zhiwen lives. I've visited eleven households on the sixth, seventh, and eighth floors. Two of the households were unreachable, and three of the households weren't at home yesterday. In fact, I've visited six households.
Three of the households claimed that they didn't hear anything unusual last night, while the remaining three households claimed to have heard an abnormal shout. However, the descriptions of the three households were somewhat different.
Among them, the owner of Unit 701 claimed that he heard a man's shout around 8 pm. The voice was rather loud, and it gave him a fright. He wanted to come out to take a look, but then he couldn't hear the voice anymore, so he gave up.
The tenant of Unit 802 claimed that he heard a man's shout at around 9 p.m. He couldn't remember whether it was a man or a woman, because he was taking a shower at that time, and the sound of running water was quite loud, so he couldn't hear it clearly.
The owner of Unit 704 claimed that she heard two shouts. She couldn't remember the exact time, but it should be between 8 p.m. and 10 p.m. But she was the only one at home at that time, and she's a woman, so she didn't go out to check. "
Li Hui smiled. "Isn't this like the blind trying to figure out an elephant?"
Han Bin thought for a moment. "Although everyone's story is different, combined with other evidence, these testimonies are still very valuable. For example, if we compare it with the surveillance video of this building, the chain of evidence will be more complete. "
"Ahem." Zeng Ping cleared his throat. "I personally led some people to investigate the surveillance footage. Among them, the most suspicious person is the suspect who took the elevator to the seventh floor at 9: 35 p.m. I asked people to collect the surveillance footage of the community and found more videos about him.
Sun Xiaopeng, play the video. "
Sun Xiaopeng stood up, taller than everyone present. He strode to the side of the projector and played the video surveillance footage.
The main character in the surveillance footage was still the person wearing a hat, a mask, and a black coat, who was wrapped up tightly.
The video surveillance footage was in stages. After walking past this part of the road, the image of the person would disappear.
The first video was still the one in the elevator, the second was the one in the community, and the third was the one on the street outside the community. None of the videos were long. Some were only a few seconds, and the longest was no more than ten seconds.
Sun Xiaopeng played a total of six videos and said, "The suspect didn't take any means of transportation when he left the community. He kept walking. After that, he turned into an alley on Yanbin Road and lost track of him.
After that, we followed the video surveillance footage and traced it backward. We found that the suspect also passed through this alley when he came, and we couldn't trace his previous tracks. That's all we have found so far. "
Zeng Ping continued, "From the existing video, the man consciously covered his tracks, which makes him more suspicious. Because he was wrapped up tightly, we couldn't distinguish his face at all. I watched the video many times. From the way the person walked and his body shape, he should be a man. Other than that, we haven't found any other valuable clues.
The comrades from the municipal bureau are more familiar with this case, so they might be able to recognize the man in the video. "
As he spoke, Zeng Ping looked across the conference table.
Zhu Jiaxu, Wang Xiao, and the others were also staring at the video, but they all frowned. The man in the video not only covered his face, but the coat he was wearing was also relatively loose, so his body shape wasn't very obvious.
How could they identify him?
Just when everyone was at a loss, Han Bin, who was sitting in the main seat, spoke.
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