Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

This time, Wang Zhaokai did not directly participate in the search and on-site investigation, he was coordinating the work.

Having just finished arranging the deployment work, Wang Zhaokai prepared to go out for a walk and take a look at the surveillance layout in the community.

The last time they came, they only asked the relevant criminal police to conduct a brief investigation and did not conduct a comprehensive check of the surveillance systems in the entire community.

This time it’s different. In order to conduct a comprehensive check of the surveillance in the entire community, Wang Zhaokai needs to have a rough outline.

Roughly map out the locations of surveillance cameras in the community and find out which cameras you will pass by when leaving the crime scene.

If everyone's guess is correct, and Wang Qin really turned herself in to take the blame for someone else, then the real suspect must have been in a hurry when he left Wang Qin's home.

In the case of tens of thousands of people, the other party must be in a hurry, so they will definitely not pay attention to many details. Even if the other party is familiar with the situation in the yard, it is very likely that they will not deliberately avoid the surveillance camera.

Therefore, from leaving this building all the way to the main gate of the community, Wang Zhaokai needs to take a look at which cameras and surveillance corners can be used as key inspections.

As a result, before he could leave, he was stopped by two criminal police officers who were conducting on-site investigation. They actually found a clue inside the closet.

Turning around, Wang Zhaokai put on his white gloves and walked to the door, but he did not go in.

"what happened?"

The detective who discovered the situation took a pair of shoes in his hand and presented it to Wang Zhaokai.

"Captain Wang, there's something wrong with these shoes. Although the soles have been cleaned, there are brown marks on the sides of the shoes. They must be blood stains."

As a result, Wang Zhaokai took a closer look at the shoes and found that they were indeed a pair of black sneakers.

There wasn't any major problem with the ground, it was relatively clean, and there wasn't even any dirt.

There were obvious signs of cleaning, and Wang Zhaokai looked into the shoe cabinet and found that the soles of other shoes had not been cleaned like this pair of shoes.

However, after the soles were cleaned, there were still some marks left on the sides of the shoes, but the shoes themselves were black, so the brown marks did not look very obvious.

It may not be very obvious to ordinary people, but the criminal police who conducted the on-site investigation caught this suspicion at a glance.

The detective who discovered the shoes continued to report.

"Captain Wang, this pair of sneakers is a size 43, but I checked the other shoes in the closet. All the men's shoes are size 41 and all the women's shoes are size 37. Only this pair of shoes and another pair of leather shoes are size 43."

"Although I didn't record the deceased's physical data 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 relatively old and have been worn for a long time. They are most likely the shoes worn by the deceased. The size 43 shoes, especially this pair of sports shoes, are relatively new. They are the new Li Ning basketball shoes released this year."

"Generally speaking, this kind of shoes should be worn more by young people."

Wang Zhaokai nodded.

Then he handed the shoes back to the detective, took off his gloves, took out his cell phone, and called the team directly.

"What size shoe did the deceased have?"

It doesn’t matter if the on-site investigating criminal police didn’t record the physical data, as the forensic doctor definitely had it recorded, so Wang Chaokai called the forensic doctor of the Criminal Police Brigade directly.

"41." "Okay, I got it."

After hanging up the phone, I, Wang Zhaokai, looked at the two criminal police officers who were investigating the scene.

"Let's conduct further investigation first. We'll take the shoes back and have the technical department do technical analysis to extract the DNA information inside and then compare them. The shoe size of the deceased has been determined, which is 41. So this pair of shoes, including the pair of leather shoes, are definitely not the deceased's."

"Captain Wang, since these two pairs of shoes are not from the deceased and are stained with blood, and since these shoes can be found in the shoe cabinet at the deceased's home, it can be basically concluded that they belong to his son, so should we take any measures there?"

Wang Zhaokai thought about it.

"If he is really the murderer, his mother has already turned herself in. We had contact with him the day before yesterday, so he shouldn't run away. Let's collect evidence first. It won't be too late to arrest him after the evidence comes out."

The two diligent detectives conducted a very thorough investigation and search this time, leaving no corner unsearched. They found clues from the shoe cabinet and began to advance forward inch by inch, little by little.

Because the footprints on the ground were quite messy, it was not easy to extract the relevant glass fragments from the coffee table. After being collected, they were sent back to the Criminal Police Brigade for testing together with the shoes.

In addition, the fingerprints on the wine bottles were also carefully extracted.

The last episode was actually done in a rather rough way, not too detailed.

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This time it was different. The two health detectives conducted the search with a purpose.

It took about two or three hours to complete the final search in the living room, and after the inspection, the two men came to the kitchen.

Although it is daytime now, a relatively obvious fluorescent reaction is still found on the ground under the irradiation of ultraviolet light.

really.

Lu Chuan's guess was correct.

Wang Qin must have come to the kitchen after killing someone, but he cleaned up the bloodstains. The reason why Wang Qin did this was probably to wash the dishes, that is, he wanted to eliminate the evidence of his son's existence. Then he wiped the bloodstains on the floor when he left the kitchen.

However, Wang Qin did not know that although the bloodstains could not be seen on the surface after being wiped away by ordinary water stains, the large fluorescent reaction after fluorescent irradiation could 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, some traces were still left behind.

After making these discoveries, the two immediately reported them to Wang Zhaokai.

After Wang Zhaokai obtained this information, he knew very clearly that Lu Chuan had guessed correctly with a high probability. The suspect was Wang Qin's son, and Wang Qin did not actually kill anyone.

Of course, the specific situation will depend on follow-up investigation.

The most important thing was to collect fingerprints from the murder weapon. Although this had been done before, it was done more carefully this time. The two criminal police officers who investigated the scene found traces of wiping on it and extracted half of the fingerprint after friction.

After obtaining this information, Wang Zhaokai first called Lu Chuan and made a basic situation report, confirming the other party's guess.

"We have already 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 this chapter)