Chapter 952

"Go and dilute some Luminol."

Jiang Yuan turned his head and gave an order, then had people take photos of the bathroom again and again. Then three people squeezed into the small bathroom, each dividing an area, and started checking.

Jiang Yuan only bent down to check the washbasin and the floor drain, and scanned a few corners before exiting. Immediately after, the on-site investigation team from the Changyang Bureau filled in.

When he did cases during his novice period, he did a second investigation of the bathroom with Wang Zhong, using cotton swabs to wipe for several hours.

Now, he brought a Coaster full of on-site investigators to enter. The suspect's residence area wasn't enough for everyone to stand on their own. Where was the logic of one person per bathroom? They all had to compete for the job.

Compared to the cases during Jiang Yuan's novice period, everyone was a murderer, everyone was a suspect, but the suspect's bathroom during the novice period was much larger. Unlike the suspect this time, who only rented such a small room. If the room were any smaller, the body wouldn't even fit, so how could he dismember it?

It can be said that this room belongs to the economical and practical type of dismemberment room. If the house were any smaller, or if it were a shared house, there would be no way to dismember the body.

In a city with dense urban surveillance today, if a person, especially a man, cannot afford a house with such a separate bathroom, he is not qualified to dismember a body. Furthermore, he is not qualified to premeditate murder!

"Captain Jiang, found the same type of woven bag." The technician searching in the bedroom pulled out a woven bag containing woven bags from under the bed.

"Is this the one with the coating?" Jiang Yuan recognized it after one look.

"Yes, looking at the total, there should be about two hundred left. It is very likely to be the same batch as the woven bags used for body dumping. Can take it back to test." The technician said.

"Found woven bags from other manufacturers?" Jiang Yuan asked.

The technician shook his head: "No, only this one."

Mu Zhiyang said from the side: "The suspect drives a truck; this is what he prepared himself for moving goods. Logically speaking, there is no need to buy from two or three manufacturers when buying so many at once."

"Makes sense." Jiang Yuan agreed. This is a deduction that only needs 0.01 Liu to make. It is estimated that the other two types of woven bags were obtained by the suspect from the victim.

Two body dumps mean transporting the body twice, and the woven bag used for the first transport cannot be simply thrown away. Regardless of whether the body was dismembered during the first dump—a fact that many friends who have never killed anyone don't know is that, besides blood, the human body actually has various other liquids and semi-liquids. After the muscles lose their activity, they can all flow out.

Therefore, the term "feces and urine flowing everywhere" can be said to be a powerful description of the human body losing muscle control.

"Has the suspect confessed?" Jiang Yuan asked casually.

Some suspects will think it through after calming down in the police car for a while.

Wang Chuanxing came over and said: "I just followed up, the suspect is keeping his mouth shut. However, Captain Cao has already taken the technical investigation team to the residential area suspected to be the first scene. The suspect's mobile phone stayed in that residential area for about 8 hours last month. In addition, a team has also gone to the warehouse area of the clothing wholesale market."

"Okay." Jiang Yuan nodded, his face full of ease.

Although there is no conclusive direct evidence yet, the information gathered from all aspects is already enough. Now it depends on which side can hit the mark.

Soon, the technician came to report again: "Captain Jiang, we are ready to spray Luminol."

This thing is best seen in the dark, so the technician's actual meaning is that I am going to lock everyone in a dark room.

Jiang Yuan agreed.

People on both sides started spraying Luminol with a squeak, and then pulled the curtains with a swish.

Police officers nowadays generally don't use Luminol. After all, it is a solution that needs to be prepared on the spot. Although there is ready-made Luminol "original paste," it still needs to be matched with sodium carbonate and hydrogen peroxide. Moreover, since it is being prepared, it has to be a bit particular. Preparing measuring cylinders and flasks, it's a box at every turn.

In comparison, technicians doing on-site investigation now like to use multi-band light sources directly, which are the various investigation lights that Huang Qiangmin configured not long after he made money. Different bands can be adjusted, and different body fluids or liquids will glow under light sources of different bands.

For example, when semen is exposed to visible light with a wavelength of 430 to 470 nanometers, it will emit orange fluorescence.

These belong to the principle of cold luminescence, just like the glow sticks shaken at concerts.

However, using multi-band light sources for investigation has certain requirements for the amount of the target, and the requirements for timeliness are also relatively high. Simply put, if something like semen is shot too little or too early, it is possible to miss it.

Luminol is different; body fluids from several years ago can be seen, and one drop is enough.

The bathroom was pitch black, and not a single bit of blue light emerged, indicating that the bathroom's renovation did play a certain role.

But surprisingly, and not unexpectedly, a faint glow emerged in the kitchen.

"There should be blood or something that flowed onto the floor." Two technicians said while taking photos.

"Feels like a piece of pork belly dropped on the floor." Mu Zhiyang also came to look, a chatty smile of a corporate slave's daily work on his face.

"Indeed a bit like it." Jiang Yuan walked over to take a look, gestured, and said: "It is possible that when the murderer was cutting the body, it was difficult to operate in the bathroom, so when he brought some parts with higher fat content over to operate, the meat dropped to the floor. Because fat is applied to the blade, the knife will become duller."

The accompanying forensic doctor also said: "Possible. Maybe it's also like fat meat dropping to the floor, no blood, the murderer might not have cleaned it up properly, maybe he forgot?"

Mu Zhiyang's corporate slave-style daily work chatty smile had long since faded. He just used the daily thinking of an ordinary non-forensic corporate slave and said: "Maybe he felt that there was meat and blood in the kitchen, so there was no need to emphasize concealment."

"Just test the DNA." The accompanying forensic doctor said while squatting down to take samples.

Jiang Yuan watched with his hands tied the whole time. Speaking of which, his on-site investigation level is already very high, but to be honest, this scene really doesn't need such high-level on-site investigation.

A group of people busily completed the sampling, then returned to the bathroom, checked the sampling situation, waved their hands and said: "Chisel the renovation."

The technicians in the bathroom exited one after another, and saw Shen Yaowei carrying a sledgehammer inside, followed by three people holding cameras to film him.

Thump.

Click click.

Thump.

Click click.

Those filming the video were filming, those taking photos were taking photos, and there were also observers peeking from outside the door.

"Use force!"

"Keep working hard!"

"Brother, Captain Jiang is waiting to eat lunch."

Everyone was wearing white coats, plastic head covers, and rubber gloves, enthusiastically cheering for Shen Yaowei, who was holding the sledgehammer.

The bathroom space is limited, so they could only help their brother like this.

"Wipe sweat." Shen Yaowei stretched his head. He held the hammer with both hands, and it wasn't easy to let the sweat drip onto the floor. He still had to spray Luminol later.

The criminal police chose the ugliest one and went over to wipe Shen Yaowei's forehead with paper towels.

"Use the chisel."

Once a piece of tile was smashed, someone else came to help, starting to carefully lift the cement layer below.

Shen Yaowei gathered his strength and continued to work hard with a clatter.

Finally, under a large piece of tile and cement layer, part of the old renovation was exposed.

It can be seen that the suspect should have once wanted to smash all the old renovations and then put on new ones, but he clearly underestimated the workload of the project. Therefore, the old renovation was only partially destroyed, and the final renovation was done on top of the smashed renovation.

Even so, one month's time is estimated to have kept Xin Shengsi busy below.

Seeing this, Jiang Yuan didn't wait for it to be completely smashed, and said: "Spray some Luminol to see."

Shen Yaowei hurriedly retreated.

The technician took a small spray bottle, sprayed it with a hiss, then turned off the lights and pulled the curtains, and saw that dots of blue light had already appeared.

"Haha, sure enough, they are all below."

The police officers present became happy.

Luminol's identification rate is one in a million. For things like bloodstains, it's useless to wipe them clean, and even using many chemical reagents, it's not necessarily possible to cover them up perfectly. The suspect doing a new renovation is actually a kind of smart approach, but in this case, it belongs to helping to preserve evidence.

Jiang Yuan immediately ordered people to take samples.

Shen Yaowei took advantage of the rest time to quietly send a message to his cousin: 【Captain Jiang gave me credit again today, I feel quite embarrassed.】

【What's the situation?】 Shen Yaoguo, the detachment captain of the Changyang City Public Security Bureau, replied in seconds.

Shen Yaowei said what he had just done, and then said: 【I don't know, I thought we gave him a big gift, he takes such good care of me.】

【Don't say, it really is. Let me think... 】 Shen Yaoguo's WeChat flashed, and after a while, he entered the content: 【Jiang Yuan seems to be dissatisfied with the public security environment near their Jiangcun residential area. The subordinates have specifically reported it before.】

Shen Yaowei's eyes lit up: 【Yes, yes, yes, Captain Jiang was quite concerned about this before... Captain Liu also specifically handled a few cases there to deter them. Could it be because of this reason that he looks at me differently?】

Shen Yaoguo: 【Don't let your imagination run wild. It must be! You entered the municipal bureau with the name of the Yao generation, what are you pretending to be now.】

Shen Yaowei smiled at himself: 【That's true, it couldn't be because my marksmanship is good.】

Shen Yaoguo: 【That's why I told you to learn skills, but you went to practice marksmanship. Won't say more, I'll hurry up and prepare. Recently, the incidence of criminal cases in various counties has decreased, but it highlights the public security problems.】

Shen Yaowei: 【How are you planning to do it?】

Shen Yaoguo: 【Public security rectification activity, ready-made template, specifically targeting these urban-rural fringe areas. Jiangcun residential area was originally a public security depression in Ningtai County. I will take a detachment to help and plow through them properly. It's best to plow to the bottom and clear out the silt at the very bottom. For those who fight, those who race cars in the middle of the night, squeeze the shit out of them!】