There are two main reasons for choosing the office of the Wuhua Mountain Joint Investigation Team in the Yuhua Branch, the first reason is that it is close to the crime scene, and secondly, the technical team investigating the scene and the forensic doctor who performed the autopsy are all from the Yuhua Branch, so it is more convenient to handle cases and communicate here.

The joint investigation team is located in a large conference room, where Han Bin used to work often, and he also saves time to familiarize himself with the environment.

After returning to the sub-bureau, Han Bin poured a large cup of tea, called Zeng Ping and Li Hui to the conference room, and informed the two of Dong Yubei's case.

After learning about the murder of Dong Yubei, Zeng Ping also believes that the two cases are directly related, but whether it was the same murderer needs further investigation.

After that, Han Bin went to the office of Deputy Director Dai Minghan and reported to the old leader about his recent work and the Wuhua Mountain case. Seeing Han Bin's growth, Dai Minghan was very happy and encouraged him a few words.

As for the case in Wuhuashan, Dai Minghan didn't have too much to ask, this case was still dominated by the Criminal Investigation Brigade of the Municipal Bureau, and they were only responsible for assisting, although he was the deputy director of the sub-bureau, it was not good to interfere with Han Bin's investigation.

At noon, Han Bin and his entourage had a meal in the Yuhua Branch, Han Bin met many old colleagues, and the news that Han Bin was promoted to the captain of the Second Squadron of the Municipal Criminal Investigation Brigade was no secret in the Yuhua Branch, and many people congratulated him.

Han Bin can be regarded as returning to his hometown, but in front of his former leaders and colleagues, Han Bin still maintains enough humility, and his attitude is not much different from before.

In addition to some familiar people, there were also some young faces who frequently looked at Han Bin.

A female police officer in her twenties greeted her companion, "Look, that is Captain Han Bin who was transferred to the city bureau, and he looks quite handsome!"

"This Captain Han has solved a lot of big cases, I heard about his deeds when I was in the police academy last year, and the teacher who taught at that time also analyzed his experience in handling cases, and I heard that he not only has great criminal investigation skills, but also is proficient in footprint identification. ”

"Tsk, it's really amazing, it looks like he's about the same age as me, and he's the squadron leader of the Municipal Criminal Investigation Brigade, I'm not even a team leader now, damn, when will I be able to get through." ”

These police officers have not been in the Yuhua branch for a long time, and they have all heard of Han Bin's deeds, some people watch the excitement, and some people regard Han Bin as a role model.

For example, Han Bin, who has repeatedly solved major cases, has been promoted several levels in just two years, and has become the captain of the municipal criminal investigation team at a young age, is rare in the entire Qindao public security system.

In the afternoon, the team members who went out to investigate returned one after another, and Han Bin held a summary meeting of the case in the conference room.

Han Bin sat at the main seat of the conference table, with colleagues from the Municipal Bureau on the left and colleagues from the Yuhua Branch on the right.

Han Bin glanced at everyone and said loudly, "Everyone knows the situation of the case, so I won't go into too much detail here." After surveying the scene, everyone divided up to investigate and talk about the progress of the investigation. ”

Li Hui coughed lightly, "My situation is relatively simple, so I'll talk about it first, and I'll throw bricks and bricks for everyone."

After being reminded by the Korean team, I led someone to search the scene carefully, and found a bunch of manuals in the drawer of the wardrobe, including the manual of a small camera.

The brand of this camera is called Kamel, it is a small camera produced in the United States, the model is V11, I found a photo of this small camera on the Internet, you can take a look. ”

Li Hui walked behind the conference table, turned on the projector, and played a slideshow of a small video camera.

Han Bin said, "I will send the photos to the case handling group for a while, and everyone should pay more attention when investigating the case, the camera that the suspect lost is likely to have key evidence, which is very important." ”

Zhu Jiaxu then reported, "I went to the Qindao Photography Association to investigate, Jin Zhiwen is a member of the association, often participates in the activities held by the association, and has also participated in some exhibitions of the association's excellent works, but there is no record of awards, and among his friends in the photography association, no one has heard that a boss wants to buy his works at a high price."

In addition, I also went to a telecommunications company and printed out Jin Zhiwen's recent telephone communication records, but I didn't have time to check them in detail. ”

Next up was Wang Xiao, who was in charge of visiting his neighbors.

Wang Xiao held a document in his hand, "There are four households on each floor of Jin Zhiwen's building, and I visited 11 households on the sixth, seventh, and eighth floors, of which two residents could not be contacted, and three residents did not live at home yesterday. Six households were actually visited.

Three residents claimed not to have heard anything unusual last night, and the remaining three residents all claimed to have heard unusual shouts, but the three households had somewhat different descriptions of the unusual shouts.

Among them, the owner of room 701 claimed that he heard a man's shout at 8 o'clock in the evening, which was relatively loud and startled him.

The tenant of room 802 claimed that he heard a shout at about 9 o'clock in the evening, and he couldn't remember whether it was a man or a woman, because he was taking a shower at the time, and the sound of running water was relatively loud, and he couldn't hear it very clearly.

The owner of room 704 claimed that she heard two shouts, the exact time she can't remember, but it should be between 8 and 10 o'clock. However, she was the only one at home at the time, and she was a woman, so she didn't go out to check. ”

Li Hui smiled, "Isn't this just a blind man touching an elephant?" ”

Han Bin pondered for a moment, "Although everyone's statements are different, combined with other evidence, these testimonies are still very valuable. For example, if you compare it with the surveillance video of this building, the chain of evidence will be more sufficient. ”

"Ahem. Zeng Ping cleared his throat, "The surveillance was personally led by me to investigate, and the most suspect was the suspect who took the elevator to the seventh floor at 9:35, and I asked people to collect the surveillance of the community and found more videos about him."

Sun Xiaopeng, you play the video. ”

Sun Xiaopeng stood up, taller than everyone present, strode over to the projector, and played video surveillance.

The protagonist of the surveillance is still the person wearing a hat, a mask, and a black coat, and wrapping himself tightly.

Video surveillance is phased, and after this journey, the image of the person will disappear.

The first video is still a video in the elevator, the second is a video in the community, and the third is a video on the street outside the community, each video is not long, some are a few seconds, and the longest is only a dozen seconds.

Sun Xiaopeng played a total of six videos, saying, "The suspect left the community without taking any means of transportation, and kept walking. After that, he turned into an alley on Yanbin Road and disappeared.

After that, we followed the video surveillance back and traced it back, and found that the suspect had also passed through this alley when he came, and the previous traces could not be traced. That's all we have found so far. ”

Zeng Ping continued, "Judging from the existing video, this man consciously covered his whereabouts, and the suspicion further increased, because he was wrapped more tightly and couldn't distinguish his face at all. I watched the video many times, and judging from the other party's walking posture and body shape, he should be a man, but other than that, I didn't find any other valuable clues for the time being.

The comrades of the city bureau know more about this case and may be able to recognize the man in the video. ”

As he spoke, Zeng Ping turned his gaze to the other side of the conference table.

Zhu Jiaxu, Wang Xiao and others have also been staring at the video, but they all look like they are frowning, the man in the video not only covers his appearance, but also has a large coat on his body, and his body size is not very obvious.

How to identify?

Just when everyone was at a loss, Han Bin, who was sitting on the main seat, spoke.