Don't take the bean bag as a police dog

Chapter 136 Little Progress

Judging from the video surveillance, the suspect fixed the lead wire of the bomb with a stick and wrapped it with transparent tape. This is the only physical evidence left by him.

After the case is solved this time, the bank may have to replace it with a higher-resolution high-definition camera.

Otherwise, such a low-resolution camera is really useless in the face of such emergencies.

The power of the bomb was not small, and the sticks and transparent plastic sheets were blown up to ashes, so to find these things, it was too inefficient to rely on manual sorting. Li Lei asked Zuo Dongliang to bring the bean bag to the battle.

Because there is no original source of smell, we can only use the transparent tape purchased on the market as the source of smell.

As for the stick, judging from the video, it should be made of metal. However, a visual inspection on the spot did not find a similar stick.

Since the transparent tape is wrapped around the stick, Zuo Dongliang's current thinking is to search for the stick, the key tool of crime, through the smell of the transparent tape.

In order to keep Doubao excited, Zuo Dongliang started working before Doubao had lunch.

Zuo Dongliang took out four kinds of scotch tapes sold on the market, put them together, and used them as a source of smell for bean bags, because the composition and materials of the scotch tapes are roughly the same.

To find fragments of transparent tape among explosives and various debris, you can't just rely on the bean bag, but when there is a search for the bean bag, you have to search around.

Turned around and found nothing.

Zuo Dongliang thought about it, probably these transparent tapes were burnt now, so Zuo Dongliang lit the bought transparent tapes and then extinguished them, and let the bean bag sniff them, but nothing was found.

Is the transparent tape missing?
Just when Zuo Dongliang was at a loss, Li Lei also came. After Zuo Dongliang's current thoughts and situation report, he also fell into doubts. Could this suspect be so cunning that all the evidence of the transparent tape was destroyed?
Li Lei and Zuo Dongliang thought for a long time, but there was still no breakthrough, but it was time for dinner.

At this time, Doubao barked, as if telling Zuo Dongliang that it was hungry.

Li Lei took a bag of things from the police car and said with a smile: "I bought the bean bag as an extra meal. There is also lactose-free milk. It's really hard to buy. I found it in several pet stores. Sweet potatoes, cauliflower and Chicken breast, I bought it at the vegetable market."

Li Lei cared so much about the food of the bean bag, it seemed that he pinned his hope of solving the case on the bean bag.

At this time, there is a sense that the better the food, the greater the responsibility.

At the duty point opposite the bank, Zuo Dongliang used the induction cooker and pot in the duty point to prepare the extra meal of the bean buns.

At this time, everyone's takeaways were also delivered one by one.

Every time I go out to work, I eat that kind of fast food box lunch. Everyone is tired of eating, so this time I made some Mala Tang, which can be regarded as an improvement on the food.

These malatangs are all soupy, so they are wrapped in three layers of plastic wrap, and it is really troublesome to open them.

Everyone hadn't started their takeaway yet, so they finished a pot of dog food mixed with boiled sweet potatoes, boiled cauliflower, chicken breast and milk.

Li Lei saw that he ate so many bean buns at a time, and he ate them so fast, and he couldn't help but sigh that the bean buns are a big meal, while Zuo Dongliang said that if the bean buns were on the second day of the devil's training day, he would eat more than this.

"That's right, the few of us on the devil's training day, didn't we eat a lot, let the bean buns be eaten well, and the fighting power will be strong."

After the meal, the investigators' second round of search began.

As far as the composition of the bomb has been analyzed, it is made of fertilizer calcium ammonium nitrate and other auxiliary chemical raw materials.

To say that the suspect's control over the power of the bomb is so precise, it is enough to blow up the ATM machine, but the target is not too big.

At present, calcium ammonium nitrate is much less than traditional ammonium nitrate fertilizer, and the sales are usually strictly controlled, and the safety is much better.

However, if someone has ulterior motives, it can still be obtained, and it is still possible to extract the ammonium nitrate in it. In this way, according to the analysis of the technical investigation department personnel, this suspect is not only cunning and did not leave any clues, but also Possess a certain technical level.

So far, the second source of smell has been found, and that is ammonium nitrate.

However, things like ammonium nitrate are still too broad, and must continue to be narrowed down.

What makes people feel frustrating is that all the things and processes of the suspect's crime have been analyzed and researched, but the suspect cannot be identified.

Zuo Dongliang and Li Lei discussed the case while having dinner. Li Lei lamented that these dozens of people have been here for two days, and the progress of solving the case is still very slow. A group of people even mentioned to let the people in the hall come.

Earlier, Li Lei said that Bao Youwei, the deputy director in charge of criminal investigation, would come to supervise the battle, but he hasn't come yet, it seems to be giving face to the criminal investigation team.

If he came to supervise the battle, the current work intensity would not be what it is now, and it is estimated that he would have to stay up late and work overtime as before.

Everyone must be thinking that it is best to solve crimes efficiently during working hours, and no one wants to stay up all night and work overtime.

Thinking of this, Li Lei put down the half-eaten Malatang and decided to look for clues again.

In fact, most of the colleagues who came to handle the case together didn't have much interest in eating, and started to handle the case after eating half of it like Li Lei.

Everyone is afraid that there will be no progress before dark, and it would be good to stay up one night less.

Just now, people from the technical investigation department searched for shoe prints around for a long time, but found nothing, because there is a large flow of people around, and the video surveillance picture is very blurry, it is still impossible to start with the shoe prints.

From time to time, there are onlookers nearby. Before, everyone would persuade the citizens to leave. Now, as long as they don’t cross the isolation zone, they don’t want to persuade them. If they persuade them too much, the citizens may think that the police are not doing business.

According to what Li Lei said, it is better to accept the supervision of the citizens without affecting the handling of the case.

At this time, at the gate of the bank, a police car stopped listening, and after a closer look, it was Bao Youwei who had arrived.

It seems that the leader still can't sit still for such a big case, and has to personally supervise the battle.

When Li Lei saw Bao Youwei coming, he wanted everyone to gather together, but Bao Youwei refused. He said that the gathering at this time would interfere with everyone's handling of the case, so he just came and watched.

"Just watch" made everyone nervous, which means that Bao Youwei has already started to supervise the battle from now on.

Li Lei reported to Bao Youwei on his work for a while, and Bao Youwei pointed to Zuo Dongliang who was searching with a dog in the distance and said, "Xiao Zuo is here this time too? Someone just mentioned him to me not long ago."

Seeing this, Li Lei quickly called Zuo Dongliang over and asked Zuo Dongliang to report on the current work situation.

However, before Zuo Dongliang could speak, Bao Youwei said, "Xiao Zuo, Professor Shen mentioned you to me, do you want to improve?"

Zuo Dongliang was taken aback by Bao Youwei's words, not knowing how to answer.

(End of this chapter)