Chapter 558 White Card

"How many vehicles have been pulled away from No. 9 Mixing Station from this morning to now?"

"Um..." the man thought for a moment: "It's hard to say. We can fill a mixer truck in 16 minutes. This specific amount... is not easy to calculate."

“However, the concrete mortar supply sites for each of our mixing stations are fixed.”

"We'll find out after checking the ticket."

Soon, all the dispatch orders for Mixing Station No. 9 were delivered to Chen Yan.

From 12 o'clock this morning to now, in 12 hours, Mixing Station No. 9 has transported a total of 45 concrete trucks.

Judging from the corpses found at the Wanghai Building and Kangmingyuan residential building project sites, combined with the continuous operation of the No. 9 mixing station, the murderer should have dumped the body very close to the present time.

The head was first found at 8:25 a.m., and the right arm was found next at 9:08 a.m.

Chen Yan looked around and only found a camera at the entrance of the company's gate.

Chen Yan looked at the person in charge of the scene: "Does your company only have one camera at the door?"

"Two. In addition to this finance room, there is another one, but the only one that works well is the camera in the finance room."

"The dust from the crushed stones here is very heavy. Many cameras were installed in the past, but they all broke within a few days. Later, they were simply not installed."

No camera......

"How many of you work here at night?"

"We work in two shifts because the mixing stations are all automatic, so we don't need many manpower."

The person in charge is named Zhang Hui, pointing to the mixing station: "For things like the mixing station, the mortar produced by each mixing station has a fixed number. We ask the technicians to set the proportions of stone, water, mixture, etc. in advance, and the mixing station will I can stir it myself.”

"The mixing station of our Yuanfang Commercial Concrete Company was renovated last year, and the crushing and transportation of stone are all automated."

"The discharging of the cone barrel is also controlled electronically, and no one is required to operate it, so there are not many people using it. With 6 people in each shift, the mixing station can operate normally."

When Chen Yan entered the yard, he had already carefully observed other mixing stations that were still working.

As Zhang Hui said, the mixing station has a high degree of automation.

There is only one place in the entire production process that requires manual participation, which is the addition of stone.

There are forklifts that shovel the stone into the crusher from time to time, and other processes are completed automatically.

Chen Yan walked into the No. 9 mixing station and observed carefully.

The entire conical barrel has only one slurry outlet at the bottom, and other places are sealed.

The stone conveyor belt linked to the upper right is also sealed.

So, how did the body get into this conical mixing barrel?

It is impossible in the crusher, because the stone particles stored here are relatively large and need to be crushed into the standard size required for mortar before being transported into the mixing cone.

Chen Yan looked at it and saw that it was about the size of a fingernail.

If the corpse had been put in from here, it would have been crushed long ago.

And the mixing cone is sealed...

Therefore, there was only one place to put the body.

conveyor belt.

"Can the protective cover of this transmission be opened?"

Zhang Hui nodded: "Of course, this protective cover is to prevent debris from entering, and also to prevent stones from being poured."

….“Because the bearings under the conveyor belt require regular maintenance, the protective cover is not welded shut. It is detachable and can be easily removed.”

"Come on, two people, come over and take off this protective shield."

Behind Zhang Hui, two young men in blue work clothes hurried forward, perhaps because they had been working in a dusty place for a long time.

Both young men have gray hair, and there is even a layer of lime powder on their eyebrows.

The two young men stood on both sides of the protective shield. With just a little effort, a section of the protective shield was opened.

"this......"

Seeing the scene inside the protective shield, Zhang Hui and others were frightened and hurriedly backed away.

Bang!

Even the young man was so frightened that the protective shield in his hand fell to the ground.

Chen Yan quickly stepped forward to investigate carefully.

It turned out that there was a blood stain left on this section of the protective cover...

"Master, come here and help me."

Liu Qingshan immediately put on his gloves and lifted up the remaining protective shield with Chen Yan.

The entire stone transport belt has a total of five protective covers.

Chen Yan and Liu Qingshan fought the second and third quarters. The remaining two quarters were too high to dismantle with bare hands.

"We have a climbing ladder here, Wang Laoer, go over and get the climbing ladder."

After a while, an electric elevator was pushed under the conveyor belt.

Fifteen minutes later, the last two sections of the protective cover were removed.

At the junction of the fourth and fifth sections of the protective cover, a coat hangs on the broken iron piece protruding from the protective cover. There are a lot of blood stains left on each protective cover. Afterwards, Chen Yan checked the crusher again and found that there was no blood in it.

From this, it can be determined that the murderer opened the protective cover on the conveyor belt for transporting stone, put the body into the conveyor belt, and then entered the conical mixing barrel.

"Arrange people to cordon off the scene and conduct on-site investigation."

"yes!"

"Zhang Hui, please gather all the people on duty last night. We want to make inquiries."

"Okay, don't worry, they are all sleeping in the dormitory now. I will call them over right now."

Taking advantage of this gap, Chen Yan also began to survey the scene.

Besides the bloodstains, the coat found underneath the shield was clearly the most valuable clue.

It was quite a coincidence that this coat was left behind.

The connection between the fourth and fifth sections of the protective cover was damaged, and the sharp iron sheet was stuck, just scratching the clothes. But even so, the clothes are not complete, only about one-third of them are in shape.

Chen Yan picked up the clothes and observed them carefully.

This should be a light-colored top, with the right sleeve remaining.

Um?

etc!

Picking up the clothes, Chen Yan's eyes flashed with joy. There is something in the right pocket of the clothes!

"Bring me an evidence bag and tweezers."

Chen Yan carefully used tweezers to take out the contents of the right pocket.

But it was not the ID card that Chen Yan thought at first, but a white plastic card.

Pure white with a line of text in the upper left corner. Tianzhang Building.

Tianzhang Building? What is this?

An hour later, the on-site investigation work was basically completed. Apart from these blood stains, half a torn piece of clothing and a white card, nothing else was found.

There were no fingerprints on the shield, and there were no other specific clues at the scene.

As for the surveillance video, Liu Qingshan has already sent someone to check it.

The surveillance camera at the gate is just a decoration and is indeed damaged.

The surveillance camera in the finance room is facing the staff and cannot capture the situation outside at all.

As for the person on duty last night, they said they found nothing.

The six staff members who worked the night shift yesterday were bleary-eyed at the moment.

"Nothing happened yesterday."

"The equipment at the station was upgraded last year. Our main task is to add stones. Normally, we add stones every two hours."

"I didn't pay attention to whether any outsiders came in. We were very busy at night. The mixer trucks pulling mortar came one after another. I didn't notice who came or didn't come."

"Absolutely no cars from outside came in. I looked at the gate and I didn't know? Yesterday, all the people coming in and out were mixer trucks and our boss's car. Apart from these cars, no other vehicles have come in."

The result of Liu Qingshan's interrogation was not very good.

No valuable clues were obtained.

The people who were on duty last night and took over in the mornings a few days ago found nothing unusual.

The worker watching the gate also confirmed that no strange vehicles entered last night.

On the day of the 100th blind date, arrest the date.

The brake is a timely reminder: remember to collect it after reading it

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