The case handling team of the Jiuheqiao Police Station does not have a code name, nor does it have a special establishment, purely to solve this murder case as soon as possible.

Bai Song is still a little moved by the small room mentioned by the master, he actually really wants to find a house nearby, and it is sometimes difficult to read books in the unit, because he is not the only one in the dormitory, and when others are on duty, he can't read books properly.

In the afternoon, the team set up a team to handle the case, one group is a policeman in his forties, named Wang Dawei, who is the sergeant of the first group, the second group is Wang Xu, the third group is Yu Wen, a female policeman who handled the case with Bai Song last time, and the fourth group is Bai Song.

The case-handling team directly held a meeting, and Sun held a meeting with the members of the case-handling team to talk about the current situation of the case.

"The focus of the current investigation is to find the two suspects, after the current investigation, the identities of the two suspects have been about to surface, and it is initially estimated that these two people should be collecting debts. After Director Sun finished speaking, Wei first put forward his views.

"Well, that's what the second team means now", Wang said: "In addition, the source of cyanide is also the focus of work, and I will talk about the current progress." Cyanide is a common raw material in industry, at present, several qualified chemical plants in our Jiuhe District have been investigated, there is no report of cyanide loss, the surrounding situation is being investigated, I talked with the second team, and we also went out to check this matter in the afternoon, in addition, if there is time, I have to go to the port recently, there is a large amount of cyanide storage in Tianhua Port, and it is also necessary to focus on investigation. ”

"Well, Wang Suo, you will take Wang Xu and Bai Song to get busy in the afternoon, and I will take Lao Wang and Yu Wen out to investigate the suspect's clues. Wei Suo then looked at Sun Suo.

"Well, you make your own arrangements, communicate more with the Second Brigade of the Criminal Investigation Detachment, avoid repeated investigations and waste of police resources, Yu Wen is on duty today, so you can bring Wang Xu with you. The thing on the king's side is to visit, and it is enough for him to bring the white pine. After Sun finished speaking, he left the office, and he had to go to the branch office for a meeting in the afternoon.

Originally, Bai Song had to be busy with the follow-up work of Wang Xiuying's fraud case recently, but Sun Tang didn't arrange it for Bai Song, and the other comrades in the group had no problem.

At about three o'clock in the afternoon, Bai Song followed Wang Suo and began to visit several chemical factories in Tianbei District.

Bai Song, a chemical plant in Tianbei District, is still a little familiar, after all, in the previous murder case, the iron bucket containing the corpse came from a chemical factory in Tianbei District.

At the end of July 1992, there was a hydrogen cyanide leak in the magic capital. The general process is that the hydrocyanic acid pipeline in the propyanol section was blocked, and when the workers investigated, they found a dripping leak, and wanted to close the valve, but in a hurry, the main valve was opened, resulting in the leakage of 60 kilograms of hydrocyanic acid, resulting in one death and four poisoning.

Modern chemical plants, for the use of this highly toxic substance, is very, very strict, from the raw material box to get out of a gram of toxic substances from the box is as difficult as to get out of a kilogram, if the chemical plant has no accidents, there is no leakage, it is impossible to have cyanide leakage.

At one of the largest chemical factories in Tianbei District, Wang and Bai Song were disinfected and dressed in special chemical protective suits to enter the main production base. The fully automated factory, three sealing procedures from beginning to end, advanced infrared, pressure, toxic gases and other detection methods, and finally the two also visited the warehouse. A chemical plant that can operate normally in the city is as strict as a prison.

Wang Suo and Bai Song investigated until the evening, but still found nothing, and after returning to the office, Sun's family waited for Wang Suo to come back in the office.

Today is the Wang Institute on duty, and the Wang Institute is the main responsible comrade in this case, and Sun's wife has been waiting for more than an hour.

"Hello Wang", the woman's eyes flushed, "I'll ask about our grandson." ”

"Hello, hello. Wang Suo shook hands with the woman, motioned to Bai Song to get some water and facial tissues for the woman, and then said: "Don't worry, we will do our best to arrest the murderer as soon as possible and give you justice." ”

"Hmm!" the woman choked up after hearing Wang Suo's words, "In order to repay this debt, our grandson has been working outside early and late all these years, and he has not stopped for a moment. This time, I finally got a little money to pay it back, but I didn't expect these people to be so vicious!"

After saying that, the woman suddenly collapsed to her knees.

"Don't be like this, don't do this, no one wants the case to happen", Wang Suo stepped forward and helped the woman up: "The case has been filed and investigated, please believe us." ”

After the case was filed, according to the regulations, the relevant personnel should be informed and a notice of case filing should be given within 24 hours, and it didn't take long for two copies to be prepared before, signed and stamped by the woman, and one copy each kept by the public security bureau and the woman.

Finally coaxed the woman a little better, Bai Song is also a little tired, but he is not idle at all today, and he has to be on duty tomorrow.

"Bai Song, you go and send her. Looking at the woman's miserable back, Wang thought about it and arranged.

Bai Song followed, and the woman glanced back at Bai Song, didn't say anything, and slowly walked out of the duty hall.

"Hello officer", the woman wiped the tears from the corners of her eyes: "I don't know your surname yet?"

"Surnamed Bai", Bai Song didn't know how to comfort him, he thought about it and said: "You also mourn, no one wants this to happen, we will definitely do our best to investigate." ”

"Well, thank you. The woman tightly held the decision to file the case and the notice of filing the case in her hand.

"We should. Bai Song said.

"Hmm. After the woman finished speaking, she got into a car.

This is supposed to be a woman, and the driver looks like a woman's daughter, a girl who is almost 20 years old, and her sad look is even worse than that of the woman.

When the girl saw the woman getting into the car, she hurriedly asked what she wanted, and after getting an answer, she finally couldn't hold it back and cried.

If you drive like this, you will have a ghost if you don't get into an accident! Bai Song understands that people must be uncontrollable under this kind of emotion.

Bai Song knocked on the car door, and the girl glanced at Bai Song and opened the window, "Police, Uncle Policeman, I, I, what's the matter with you?"

"Do you need to call a substitute driver for you?" Bai Song asked with concern, "You can't drive like this." ”

"Thank you... No, you don't. The girl sobbed a few times, then wiped her tears with a piece of paper, then wiped her nose again, "I can drive." ”

"I'll do it. The woman got out of the passenger seat, helped the girl to the back seat, and drove away slowly.

Bai Song watched the car steadily leave his sight, his heart was slightly settled, and he turned around and returned to the office.