Serious Crime Unit 1

Chapter 142 Fatal Disease (4)
Jiang Yiming's inquiries to the three bosses yielded no results. Later, Jiang Yiming asked Liang Ping to take him to the director of the workshop that produced thallium medicine. The director of the workshop was Dong Yongming, who was working in another workshop. Jiang Yiming asked him if there was any thallium left in the warehouse. .He thought for a while and said there should be, so he took Jiang Yiming to the workshop where thallium drugs were produced to check.

The warehouse where thallium is stored is on the right side of the workshop. It is a small room made of electric welded steel plates. It is two meters high and 1.5 meters wide. It looks like a mobile toilet. Its four legs are welded to the ground. The warehouse has a half-meter wide room. The small door was equipped with two hidden locks. Dong Yongming walked into the warehouse and took out two keys to open the door. Jiang Yiming quickly pulled him away. He didn't know what he meant: "Officer Jiang, what's wrong?"

"Don't you each have a key? How come there are two keys?"

"Oh, that's it. The original deputy director resigned. He went to Guangzhou to open a pharmacy, so he gave me his key."

Jiang Yiming looked at the lock on the door and felt something was wrong. He motioned to Lu Yingying to put on gloves to check. Lu Yingying nodded, put on her gloves, grabbed the doorknob and pushed it gently. The door opened. Dong Yongming was shocked: "This... …How can this be?"

"Can you see if the thallium is missing?" Lu Yingying said to him.

Lu Yingying stepped aside and let Dong Yongming go in and take a look. He said after two seconds: "It's lost. About half a kilogram of thallium powder and half a kilogram of thallium solution were stolen..."

Jiang Yiming asked him to come out. Lu Yingying inspected it carefully for a while and said, "Captain Jiang, this thief may have used a master key to open the small iron door."

"Master key?"

"Yes, it's not a master key. This kind of key is also called a tinfoil key. It is a new type of unlocking method. It is mainly developed for one-word locks, cross locks and AB locks. It emerged in 2010 and allows thieves to open doors in ten seconds. Open these two locks inside, and the tinfoil key can be bought for two to three hundred yuan on Taobao. However, this thief is not clever and timid. If he fails, he will definitely lock the door. He is not a habitual thief, but a novice. It's done." Lu Yingying said firmly.

"How much can one and a half kilograms of thallium cost?" Jiang Yiming asked Dong Yongming.

"The maximum selling price is NT$3000 or [-]. Unless the small manufacturers that make poisonous drugs and firecrackers will buy it, there is very little market. Authentic manufacturers will not buy thallium from private individuals."

"Yingying, call Xiao Ke to bring the investigation tools to see if you can extract fingerprints from the door." Jiang Yiming was very lucky that he was a novice, otherwise he would definitely wear gloves to commit the crime.

After a while, Xiaoke and Wu Jiang came with an investigation toolbox. Xiaoke held a magnetic fingerprint brush to absorb the fluorescent magnetic powder, and used the magnetic spike formed by the powder to gently brush the door handle and the surrounding door body. After 10 minutes, the fingerprint on the door was The fingerprints appeared clearly, and there were several different fingerprints on them. Wu Jiang took pictures of these fingerprints and brought them back to the police team for comparison.

After comparing the fingerprints, it was found that the two relatively vague fingerprints belonged to Dong Yongming and Deputy Director Gao Xiaochang.I don’t know whose fingerprint the clearest one belongs to, and no fingerprint matching it can be found in the fingerprint database. This fingerprint is [-]% likely to belong to the thief. If the thief can be found, there may be hope for Chen Wei’s poisoning case.

The next key is to find the thief.

5. Catch the thief

What does a thief do when he steals thallium?If he wanted to use these thallium to poison Chen Wei, he wouldn't have to steal so much thallium, right?He only needs to steal one gram of thallium solution and inject it into Chen Wei's toothpaste, which is enough to cause Chen Wei to become chronically poisoned and incurable.Will he be used by the murderer?
Everything can only be revealed after the thief is caught.

Huaxing Pharmaceutical Factory is located in the western suburbs of the city, covering an area of ​​81 acres. It is surrounded by a two-and-a-half-meter-high wall. It is difficult for people to cross the wall and enter the factory area, unless specially trained people. Of course, ordinary people can also use ladders. , bamboo poles and other things to climb over the wall and enter.However, there are surveillance cameras everywhere in the factory, and there are almost no blind spots for surveillance. Even if a bird flies into the factory, it will be photographed. If you want to find the thief, the best way is to check the surveillance video.

Generally, factory videos are only saved for three months, or even shorter. After three months, the system will automatically delete them. Of course, if the hard disk space is large enough, it may be retained for half a year or even a year. If necessary, You can copy it and keep it permanently, but unless it is a very memorable video, such as an opening ceremony, leadership inspection, foreign VIP visit, etc.

The monitoring equipment of Huaxing Pharmaceutical Factory is very comprehensive. There are five buildings in the factory area, all of which are arranged in the center of the factory area: factory building, office building, public canteen, dormitory and warehouse.The pharmaceutical workshop is the largest, covering an area of ​​nearly five acres.The crime team wanted to see the video of the thallium storage workshop, but the security guard said that because there was no production, they had already turned off the monitor.

However, there are 20 electric poles around the factory, with a regularly turned on headlight installed on them, and monitors installed. The distance between each pole is 30 meters. These monitors are facing the wall, mainly to monitor those who climb over the wall.

The crime team pulled out all the videos from 20 surveillance cameras in the past three months to check. It was a huge workload to watch all the surveillance videos, and it was like looking for a needle in a haystack.But this is the only way, there is no shortcut.

They used the elimination method and only watched the night videos. Because there were many workers and security guards in the factory during the day, it was impossible for thieves to climb over the wall and enter the factory during the day to steal thallium.When everyone saw the seventh day, Lu Yingying made a discovery. In the video on pole 12 (at 7 a.m. on July 1), a figure climbed over the wall and entered, then bent over towards the production workshop. Sneak up and quickly disappear into the surveillance area.Because his face was always facing down and he was wearing a sun hat, his face was not captured by the surveillance camera.

Lu Yingying reported the situation to Jiang Yiming. Jiang Yiming came to Lu Yingying's desk, stared at the video on the computer, watched it over and over again, and felt that this person was highly suspicious.

In the afternoon, Jiang Yiming took Lu Yingying to the pharmaceutical factory and called up the video near the thallium workshop. However, there were no monitors around the thallium workshop, so he could only find this person from the monitor on No. 12.

Lu Yingying took a screenshot of the video and used the "FotoSoft" software to make the blurry screenshot clearer, but she still couldn't see the person's face clearly, but Lu Yingying could tell from the sportswear the person was wearing that it was " "Back to Back" brand, the whole outfit is gray.Judging from the figure, this person is about 1.60cm tall and has very long hair, like a woman. This was a popular hairstyle a few years ago, but it is now outdated.

This person ran towards the thallium workshop as soon as he landed, which shows that he is familiar with the factory area and workshop. He may be an insider. If not, he must have visited the factory. Otherwise, he cannot be so familiar.

Jiang Yiming and Lu Yingying took the screenshots and videos to the pharmaceutical factory and asked the three vice presidents to identify them. The three bosses looked at them for a long time, but they all said they did not recognize this person.Later, Liang Ping came up with an idea and called the director of the personnel department to identify him. The director looked at it for a while, pondered and said, "This seems to be Ding San. He always liked to wear back-to-back sportswear. In fact, he bought it from a street stall. "

"How tall is he? What does he do?"

"About 1.60 meters, right? He is relatively short. He is a worker who takes care of workshop hygiene. No one in the factory thinks highly of him. Last year, he was beaten up for watching a female employee take a shower, and then I fired him. That kind of mentality is I will not keep a person who is wrong."

"Do you know his address?"

"I don't know, but his ID card and address should be on the file in the personnel department."

Jiang Yiming asked him to get Ding San's personnel file. The minister nodded and left, and soon brought Ding San's file.

Ding San is from a small village in Xiangfan, Hubei. He is 32 years old. He only worked at Huaxing for three months before he was fired due to a voyeurism incident.

Lu Yingying called the mobile phone he left on the file, but it was an empty number and the clue was broken.But this did not trouble them. As long as they knew his ID card, it was possible to find him. Jiang Yiming read the copy of the ID card and judged that the ID card was genuine.

Lu Yingying opened the public security intranet, entered the password, and searched for Ding San's household registration. Sure enough, there was such a person. His household registration photo was exactly the same as the photo in the personnel file, so it was easy to handle.

Jiang Yiming called his colleagues in Xiangfan for assistance. In the afternoon, the Xiangfan police faxed his mobile phone number and current address to the serious crime team. Ding San did not leave the provincial capital and lived in Changwei Town, 15 kilometers away from the city.Jiang Yiming and Xiaoke immediately rushed to Changwei Town.

Ding San lives in an abandoned elementary school dormitory. This elementary school was contracted by the principal's father and divided into 105 small rooms, which are rented out to outside vendors and handymen. Each room is only 8 square meters and the monthly rent is 150.Ding San is not at home. According to his neighbors, he has not done any work. He hangs out in various underground casinos with a gambler. If Ding San’s boss wins money, he will drink outside all night, then go to a hotel to book a room, or even Taking drugs and having fun.

In order to avoid accidents, Jiang Yiming called the technical department and asked them to locate Ding San's mobile phone. A few minutes later, the technician told them: Ding San's mobile phone signal appeared at Dafa Hotel in Changwei Town.

Dafa Hotel is located on the mountainside and has only three floors. It has few customers and is rented by some small gamblers for many years.Jiang Yiming asked the front desk service officer and found out that Ding San lived in Room 203. He and Xiao Ke, led by the waiter, went to Room 203 and knocked on the door. Someone asked: "Who is it?"

"waiter."

"Let's go, we don't want service."

"The cleaners are going in to clean, please open the door."

(End of this chapter)