Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Zhang Hui stared at Zhao Qiang: "Are you sure it's just that simple? You'd better tell the truth. This is related to the investigation of a murder case."

Zhao Qiang was silent for a while, and finally spoke: "Well, actually Li Qing also revealed to me that he found that there might be some problems in his factory, but he didn't say what the specific problems were. He said that if it is not solved well, there may be big trouble."

This news made Zhang Hui and Wang Shuai realize that Li Qing's death might be related to this "problem" in his factory. They continued to investigate Li Qing's car modification factory and conducted a more detailed inspection of the equipment and accounts in the factory.

When inspecting the equipment, Yang Sen discovered that some of the parts used by Li Qing to modify the turbocharger seemed to be from irregular sources. He reported to Lu Chuan: "Captain Lu, I checked the manufacturers of these parts. Some of them are produced by small workshops, with uneven quality and much cheaper than regular parts. Although Li Qing can reduce costs by using these parts, it may affect the performance of the turbocharger."

Lu Chuan frowned. "This is most likely the problem in the factory he mentioned. If customers find out that he used these parts, they will definitely cause trouble for him. Keep checking to see if any customers have had disputes with him because of parts issues."

Zhang Hui and Wang Shuai visited those customers again, and this time they focused on asking about the parts. Finally, a customer named Sun Wei admitted that his car had a serious malfunction after being modified by Li Qing.

Sun Wei said angrily: "I drove the car over to him to argue, but he kept shirking responsibility, saying it was not his fault. I wanted to ask him for compensation, but he said he would help me fix it for free, so I didn't pursue it. Now that I think about it, his attitude at the time was very strange."

As the investigation deepened, more and more clues pointed to the problem of Li Qing Automobile Modification Factory using inferior parts.

Zhang Hui and Wang Shuai learned that Li Qing had not purchased parts from the original parts supplier for a long time, and the purchase volume had dropped sharply two months ago. This situation made them feel something was wrong. Following the clues of the purchase order and transfer records, they locked their eyes on a woman named Zhang Lijuan. According to the investigation, Zhang Lijuan has become Li Qing's new supplier in the past two months.

"This Zhang Lijuan is very suspicious. Two months ago, Li Qing's supply channels suddenly changed, and then he was murdered. There must be some connection between them." Zhang Hui frowned, his eyes revealing concentration and determination.

Wang Shuai nodded in agreement: "That's right. And you see, in the transfer record, the payment Li Qing paid her was not low. It was much higher than the price she paid from the old supplier. The reason behind this is worth digging deeper."

The two immediately started a comprehensive investigation of Zhang Lijuan. They first learned from the business registration information that Zhang Lijuan ran a small mechanical parts processing factory. The factory was located in an industrial park on the edge of the city. It was small in scale, but it looked fairly formal.

Zhang Hui and Wang Shuai arrived outside Zhang Lijuan's factory and found that the security measures here were relatively ordinary. There was a security room at the door and a security guard was sitting inside on duty. Zhang Hui walked up and showed his ID.

"Hello, we are police officers. We would like to talk to your boss Zhang Lijuan to find out some information." Zhang Hui said.

The security guard was a little surprised and stood up quickly: "Oh, police comrade, Boss Zhang is in the factory today, I will inform you right away."

After a while, Zhang Lijuan came out of the factory. She looked to be in her thirties, wearing a business suit, with her hair tied up behind her head, and her eyes revealed a shrewd and capable temperament.

"Comrade police officer, what can I do for you?" Zhang Lijuan asked politely, but there was a hint of nervousness in her eyes. Zhang Hui looked at her with a serious expression: "Zhang Lijuan, we are investigating a case and need to understand the business relationship between you and Li Qing. You supplied parts to Li Qing, isn't that right?"

Zhang Lijuan was slightly startled, then replied: "Yes, I have business cooperation with Li Qing, and I provide him with turbocharger parts. Is there any problem with this?"

Wang Shuai then asked: "From what we know, Li Qing has only been buying from you for two months. Before that, he had been buying from other suppliers. Why did he suddenly change suppliers and choose you?"

Zhang Lijuan hesitated for a moment and explained, "I just started this business and have been looking for new customers. I took the initiative to contact Li Qing and offered him some favorable conditions. The price was also lower than that of previous suppliers, so he chose to cooperate with me."

Zhang Hui stared into her eyes and continued to ask: "Did anything unpleasant happen during your cooperation in the past two months? For example, product quality issues, or payment disputes?"

Zhang Lijuan quickly shook her head: "No, no, we have a very pleasant cooperation. The quality of the parts I provided is no problem, and Li Qing also paid me on time."

Although Zhang Lijuan's answer seemed flawless, Zhang Hui and Wang Shuai, with their years of experience in handling cases, always felt that she was hiding something. The two decided to look around the factory to find some clues.

"Boss Zhang, we would like to learn about the production situation in your factory. Would you be willing to take us around?" Zhang Hui made the request.

Zhang Lijuan's expression changed slightly, but soon returned to normal: "Of course, police comrade, this way please."

Led by Zhang Lijuan, Zhang Hui and Wang Shuai visited the factory. The machines in the workshop were roaring and the workers were busy at their respective posts. Zhang Hui and Wang Shuai observed and asked some detailed questions about production and supply.

Suddenly, Wang Shuai noticed a pile of iron cages in a corner of the factory. The style of these iron cages was very similar to the iron cage that imprisoned Li Qing's body. His heart tightened and he immediately winked at Zhang Hui.

After Zhang Hui saw the iron cages, he calmly asked Zhang Lijuan: "Boss Zhang, why do you have so many iron cages in your factory? What are they used for?"

Zhang Lijuan's eyes were obviously panicked, but she still pretended to be calm and answered: "Oh, these iron cages are used to hold some scattered parts for easy transportation and storage."

Wang Shuai walked up and carefully observed the iron cage, and found some marks on it, which were very similar to the marks on the iron cage at the crime scene. He turned to look at Zhang Lijuan and said seriously: "Boss Zhang, these iron cages are very similar to the iron cages we found at the crime scene. How do you explain this?"

Zhang Lijuan's face turned pale instantly, and beads of sweat appeared on her forehead: "This... this is just a coincidence, this kind of iron cage is very common." (End of this chapter)