A cordon was pulled at the scene and a lane was closed.

Today is Friday, and there are not many cars, but Liu Shuyuan is a little embarrassed to close a lane for this thing. I don't know how Brother Sun called the toll booth here, but he really took it too seriously.

Bai Song pursed his lips and expressed obvious contempt for this bureaucratic style, and after the car was parked, the two got out of the car under the eyes of several toll booth staff.

It is a part of the car mudshield, which is basically hard plastic, and what falls off this time is a piece of iron sheet nailed to it between the top of the van mud tile and the box, which is not big.

"What are you going to do with it?" Bai Song planned to ask Liu Shuyuan's opinion first.

"It's... It's up to you to decide. "Liu Shuyuan doesn't have any good ideas.

"Take it back and take it for a lab and see if there's any mess left. Bai Song said: "Do you have a bag with good sealing in the car?"

"No, there is a plastic box in the trunk, just put it inside, the sealing is still very good, I take out the clothes, the box is gone." Liu Shuyuan said.

"Okay, don't touch this piece of iron with your hands. ”

...

Soon, the two of them directly packed up the piece of iron sheet with the lid of the box and left here in a hurry.

There's a lane blocked, so I'm sorry...

The criminal department is far from here, and it takes nearly an hour to drive. On the way, Bai Song saw Liu Shuyuan's connections again, and actually contacted a friend from the Criminal Division, and directly conducted a simple test on this thing for a while.

Laboratory testing is actually very complicated, after all, various substances do not automatically show their appearance, but through different reagents, to determine whether several of them exist or not.

If you want to check whether there are trace amounts of blood or contraband on this iron sheet, it is not difficult. But if you say, "I don't know what's in here, you can help me see what's in here", basically the laboratory technician will have a hard time.

The Criminal Science Institute, the full name of which is the Institute of Criminal Science, Bai Song has also dealt with this side many times, and the police working here, if you only talk about law enforcement, case handling and investigation, etc., are definitely inferior to some professional criminal police. But here is more specialized, the last time the gold was refined, it was used in the laboratory here.

Drove here, as clean as ever. As one of the few places where the public security department is engaged in scientific research, it has never been a noisy place, but today, it seems to be a little quieter.

"What's the matter, there's no one in the courtyard?" Liu Shuyuan asked the security guard at the gate.

"I don't know, I went out early in the morning with a bunch of people, and I don't know why I went. "The security guard doesn't know much about it.

The two entered the lobby of the main building and chatted with the young lady at the front desk to find out what was going on.

In this, the thief went in last night!

Speaking of which, the high-walled compound in this place is not an easy place to attract thieves, but it is a place to attract thieves, where to go to make sense...

Of course, the thieves didn't enter any of the buildings, but just wandered around the parking lot and stole four electric car batteries. This can be regarded as a serious technical work, the lost batteries are all lead-acid batteries, there is no lithium battery battery, each weighing thirty or forty pounds.

The thief climbed over the wall and was able to steal four batteries!

It's really a bit level, and since there is no surveillance video at this angle, a large number of experts have started to survey around the area.

As a ready-made topic, no one wants to let it go, after all, this case has been solved, and it is estimated that until retirement, in this compound, it is capital worth boasting about!

When Bai Song heard this, he couldn't help but feel silent for the thief, fancy death, master!

Liu Shuyuan made an appointment with someone in advance, but he didn't wait long, and took the box directly.

"What's the need?" The person who spoke was a policewoman in her thirties, surnamed Zhang, who should be very familiar with Liu Shuyuan.

"Test whether there are any common contraband and DU products on it. Liu Shuyuan said a rough idea.

"Does this still need to be tested?" Sister Zhang said: "Isn't it more accurate to find a drug detection dog to smell it?"

"Well, that's right. Liu Shuyuan said: "That's it, Sister Zhang, you can help me test if there are any messy chemicals on it, uh, I know it's hard to measure, you do your best." ”

"Okay. Sister Zhang nodded: "I will also help you test the one you said by the way, and the result will be available in three hours." ”

Sister Zhang took the box and left, and Bai Song looked at Liu Shuyuan with some resentment at the door.

Three hours? He usually comes over to send the inspection materials, except for some big and important cases, which can be very fast, and the others can sometimes drag on for several days or even longer, but here in Liu Shuyuan, this can be?

"What do you have to do with this..."Bai Song once again expressed his disdain for Liu Shuyuan.

"Haha, don't look at me, after all, our case may not be an ordinary big case, right?" Liu Shuyuan could see what Bai Song wanted to say, "Let's wait here for three hours honestly, and go find something to eat in a while." ”

As soon as Liu Shuyuan said this, Bai Song was really a little hungry, and he ran back and forth a few times, and it was already time to eat at noon.

"Isn't it good to let people do experiments at noon?" Bai Song asked.

"I'm also thinking about this, let's go, let's drive out to buy some fruit, and by the way, bring some food for a few people in the department. Liu Shuyuan said.

After saying that, the two drove out for a spin. But the problem is that this neighborhood is too remote! The closest places to here are all rural areas, and Bai Song opened the map and looked at it, and there were only a few schools in the vicinity.

Liu Shuyuan drove to one of them, it is estimated that it is a vocational college, the school is not big, and the management is not strict, and after a long time, except for a larger supermarket, there is only a canteen.

The canteen also has to use a meal card, and the two originally wanted to ask the students to pay for it, but they were still embarrassed, so they bought a lot of fruits and food from the supermarket and carried them to the car.

It was already more than twelve o'clock when he returned to the criminal department, Bai Song still felt hungry after eating a few ham sausages, and said to Liu Shuyuan: "Do you have a canteen meal card here?"

"No, but I know a few people, so it's okay to go for a meal. Liu Shuyuan also felt that eating snacks was a bit light, especially when he broke bananas on the road just now, and he was even more hungry.

"That's a good dare, I don't know anyone here. Bai Song pointed to a few bags: "Let's send the fruit upstairs first." ”

The two of them brought up the fruit they bought for others, and there was no one in the office, so they went directly to the cafeteria after they finished delivering it.

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