This time Wang Zhaokai did not directly participate in the search and on-site investigation work. He was in charge of the coordination.
Just after arranging the deployment work, Wang Zhaokai was going to go out and take a look at the monitoring layout in the community.
The last time I came here, I only asked the relevant criminal police to conduct some brief investigations, and did not conduct a comprehensive investigation of the surveillance of the entire community.
This time it is different. To conduct a comprehensive investigation of the surveillance of the entire community, Wang Zhaokai needs to have a rough outline.
Make a rough layout of the locations of surveillance cameras in the community, and determine which cameras you will pass when leaving the crime scene.
If everyone's guess is correct and Wang Qin turned himself in after being blamed, then the real criminal suspect must have been in a hurry when he left Wang Qin's home.
In the presence of tens of thousands of people, the other party must be in a more impatient mood, so they will definitely not care about many details. Even if the other party is familiar with the situation in the yard, it is very likely that he will not deliberately avoid the surveillance cameras.
So from this building to the gate of the community, Wang Zhaokai will probably take a look at which cameras and surveillance corners can be used as key points for investigation.
As a result, before he could leave, he was stopped by two criminal policemen who were doing the investigation. They found clues in the closet.
Turn around, Wang Zhaokai put on his white gloves and walked to the door, but he did not go in.
"What's wrong?"
The detective who discovered the exploration brought a pair of shoes in front of Wang Zhaokai.
"Team Wang, there is something wrong with these shoes. Although the soles have been cleaned, there are brown marks on the side of the shoes, which should be blood stains."
It turned out that Wang Zhaokai's shoes were After taking a closer look, it was indeed true, they were a pair of black sneakers.
There is no big problem on the ground, it is relatively clean, there is even no mud.
There were obvious signs of cleaning, and Wang Zhaokai looked inside the shoe cabinet and looked at other shoes, which had not had their soles cleaned like this pair of shoes.
But after the soles were cleaned, there were still some marks left on the sides of the shoes. However, the shoes themselves were black, and the brown marks did not look very obvious.
It may not be obvious to ordinary people, but the criminal policeman who conducted the on-site investigation caught this suspicion at a glance.
The detective who discovered the shoes continued to report.
"Team Wang, this pair of sneakers is size 43, but I checked the other shoes in the shoe cabinet. All the men's shoes are size 41 and all the women's shoes are size 37. Only this pair of shoes There is another pair of leather shoes in size 43.”
"Although I did not record the relevant physical data of the deceased when I came to see his body last time, but judging from the styles of the shoes in the closet, the size 41 shoes are older, older, and larger. The probability should be the shoes worn by the deceased , and these size 43 shoes, especially this pair of sports shoes, are relatively new in style. They are Li Ning’s new basketball shoes released this year.”
“Generally speaking, these shoes should be worn by young people. More."
Wang Zhaokai nodded.
Then he handed the shoes back to the detective, then took off his gloves, took out his mobile phone, and made a call directly to the team.
“What was the shoe size of the deceased?”
It didn't matter that the criminal police didn't record the entity's data. The forensic doctor must have recorded it, so Wang Chaokai called the forensic doctor of the criminal police brigade directly.
"Code 41." "Okay, I understand."
After hanging up the phone, I, Wang Zhaokai, looked at the two criminal policemen who were investigating the scene.
"Let's conduct further investigation first. We will take these shoes back later, and then let the technical department do technical appraisal and analysis, extract the DNA information inside, and then compare them. The shoe size of the deceased has been determined. Yes, it’s 41, so these shoes, including the leather shoes, definitely don’t belong to the deceased.”
"Captain Wang, since these two pairs of shoes do not belong to the deceased and are stained with blood, and these shoes can appear in the shoe cabinet of the deceased's home, it can be basically concluded that they should belong to his son, so should we take measures there? ?”
Wang Zhaokai thought for a while.
"If he is really the murderer, his mother has now surrendered and reported the crime. We were in contact with the other party the day before yesterday. The other party should not escape. Let's collect evidence first. After the evidence results come out, we will It won’t be too late to arrest the other party again.”
The two frontline criminal police officers searched very carefully this time, and found no clues in every corner. They found clues from the shoe cabinet and started to search inch by inch. Push forward.
Because some of the footprints on the ground are quite confusing, it is not particularly easy to extract the glass residue fragments related to the coffee table at the moment. They were collected and sent back to the Criminal Police Brigade for testing along with the shoes.
In addition, the fingerprints on the wine bottles were also carefully extracted.
The last time I did the episode, it was actually relatively rough and not too detailed.
This time it was different. The two healthy detectives conducted the search purposefully.
It took about two or three hours to complete the final search in the living room. After the investigation, the two people came to the kitchen.
Although it is daytime, a relatively obvious fluorescence reaction is still found on the ground under the irradiation of purple light.
really.
Lu Chuan’s guess was correct.
Wang Qin must have been in the kitchen after killing the person, but he cleaned up the blood. The reason why Wang Qin did this was probably to wash away the dishes, which meant that he wanted to save his son. Then he wiped the blood on the floor when he left the kitchen.
But Wang Qin didn’t know that although blood stains are not visible on the surface after wiping away blood stains, the large fluorescence reaction after fluorescent irradiation can easily allow the police to find relevant clues.
Not only that, blood stains were found on the rag, mop and sink in the bathroom. Although the other party had cleaned it, there were still relevant traces.
After the two made these discoveries, they immediately made relevant reports to Wang Zhaokai.
After getting this information, Wang Zhaokai also knew clearly that Lu Chuan had guessed correctly with a high probability. The suspect was Wang Qin's son. Wang Qin actually did not kill anyone.
Of course, the specific situation depends on subsequent investigations.
The most important thing is to collect fingerprints on the murder weapon. Although it has been done before, it needs to be done more carefully this time. Two criminal policemen who investigated the scene found traces of wiping on it and extracted half of the fingerprints after rubbing.
After having this information, Wang Zhaokai first called Lu Chuan and made a basic report, which confirmed the other party's suspicion.
"Now that we have collected some clues, the technical department will probably come up with relevant conclusions tonight. I will give you a detailed report tomorrow morning." (End of Chapter)
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