A powerful country in scientific research

Grandma Jiang: "Of course, have you finished your research?"

Su Ran chuckled, "I guess so. I just made it and haven't tested it yet."

Grandma Jiang: "Then don't you have to go back to work?"

"Not sure yet. Let's take a look at the test results first. This result is very important."

Grandma Jiang nodded. She didn’t understand her granddaughter’s research, but she hoped the test would be successful.

But after so many years, Ranran’s research seems to have never failed?

Not necessarily. Maybe he didn't tell them about the failure. Ranran has always been very sensible. She only reports good news and not bad news. If there is anything bad, she hides it from them and bears it herself, just like when Su Jianguo cheated on him.

Oh, forget it. The child is grown up now and she can’t take care of this anymore. She should just go make some tea.

Comrade Zhao arrived soon.

When Comrade Zhao arrived, Grandma Jiang brought him some tea and then went back to the house.

What they discussed must be kept confidential, so Grandma Jiang should just not go and cause trouble.

The three of them sat in the living room. Su Ran didn't beat around the bush and started directly introducing his newly made bulletproof vest.

"Comrade Zhao, this is the bulletproof vest I recently researched. This material is a polymer material I recently researched. It is both soft and extremely hard and durable. It can effectively block the penetration of high-speed projectiles. It is also fireproof and waterproof."

Zhao Qiang was shocked when he heard Su Ran's words.

If Su Ran hadn't said this, he might have thought that this person was bragging.

But since Su Ran said it, it’s true.

Comrade Su Ran actually made a bulletproof vest! Guoan has a lot of advanced foreign equipment, and he has seen and used bulletproof vests, but the bulletproof vest in front of him is obviously not the kind he has seen before.

Previous bulletproof vests were thick and bulky, making it hard to ignore them once they were worn. Furthermore, those bulletproof vests were just vests that could only protect the upper body, not the arms and legs.

Su Ran made this "bulletproof vest" that looks like an ordinary top. You can't tell what's inside or outside when you wear it. It looks very light and has sleeves, so it can protect people very well.

But even though it has so many advantages, Zhao Qiang still finds it a little hard to believe it.

"Comrade Su, is this really a bulletproof vest?"

Su Ran smiled confidently, "Of course, Comrade Zhao, if you have a gun, you can try its effect."

Zhao Qiang touched the gun at his waist. He did have it with him.

"Then I won't be polite." Zhao Qiang said a little embarrassedly.

He Cheng couldn't help but interrupt and said, "Brother Zhao, can I go with you to take a look?"

He Cheng suggested watching it together not because he questioned Su Ran, but because he was really curious.

Zhao Qiang naturally did not refuse, so Zhao Qiang took He Cheng and a few of his men to the deserted suburbs to test the bulletproof vest.

An hour later, everyone came back very excited.

"Comrade Su, this is really a good thing." Zhao Qiang said excitedly.

Su Ran smiled faintly, "Of course."

"Comrade Su, I must report this to the leader."

Su Ran nodded, "No problem."

Zhao Qiang: "Then I will take this bulletproof vest?"

Su Ran stopped him and said, "Wait, Comrade Zhao, do you think it is safe to wear this bulletproof vest?"

Zhao Qiang nodded, "That's for sure."

Su Ran smiled slightly, "You said before that you didn't let me go out because you were afraid that I would be in danger. Now that I have it, I should be able to protect myself."

Zhao Qiang: "This..."

He looked at He Cheng, and the two of them communicated silently with their eyes.

Su Ran looked at the two of them flirting with each other, said nothing, and just smiled at them.

He Cheng was the first to be defeated.

"Of course, do you really want to go out?"

Su Ran: "I don't want to go out, I just want to catch the person behind the scenes."

Zhao Qiang knew that he should stop Su Ran, but he didn't know how.

Five days have passed since the poisoning incident. During these five days, Zhao Qiang has been cooperating with the police to find the murderer, but still nothing has been found.

The further we go, the harder it may be to catch the murderer, so time is very important.

Zhao Qiang insisted, "Comrade Su, we also want to catch the murderer as soon as possible, but your safety is more important."

Su Ran was speechless.

"Comrade Zhao, now that you know I have the ability to protect myself, there will be no danger. Why are you still unwilling to let me try? Besides, we still have you. If you make arrangements in advance, there won't be any problems."

Zhao Qiang frowned, lowered his eyes and thought for a moment, then compromised.

"Comrade Su, we can promise you to lure the snake out of its hole, but you must protect yourself."

Su Ran's face lit up with joy.

"No problem. When can I get out?"

Zhao Qiang thought for a moment and said, "The day after tomorrow. We need to deploy in advance and arrange people in every place we pass by during work."

Su Ran didn't mind. Let's just do it the day after tomorrow. It would just be one more day at home anyway.

"I'm going back to work, so I can let everyone know and have some fun."

Zhao Qiang raised his eyebrows, recognizing Su Ran's voice-over, and nodded.

"Okay, don't worry, I will definitely notify everyone."

After saying that, Zhao Qiang looked at the bulletproof vest and said, "Comrade Su, can I take this?"

Su Ran waved his hands and said, "Take it, take it."

.....

Time soon came to the day after tomorrow, when Su Ran returned to work.

He Cheng hasn't returned to Qinghe Brigade yet. He has a lot of time and nothing to do. He is a little worried about Su Ran, so he plans to pick her up and drop her off in the next few days.

On the first day of work, everything was calm. Except for the more enthusiastic colleagues, everything else was no different from before.

The plan to lure the snake out of its hole has temporarily failed.

However, Su Ran was not discouraged. On the first day, the other party might confirm whether she was really back, and might start planning the action tomorrow.

The next day, Su Ran and He Cheng went to the machinery factory together.

Su Ran looked at the "passersby" and couldn't help but curl his lips.

These police officers are quite professional~

She tilted her head to look at He Cheng next to her and asked, "Is it really okay not to go to the factory for so long?"

He Cheng: "It's okay. The factory is developing well now, so they don't need me very often. Besides, the factory has a phone now, so they can call me if there's anything. It's very convenient."

Su Ran: "Well, you can't stay here forever, when are you going to go back?"

"I'll go back once I catch the person behind this." He Cheng replied.

Su Ran curled her lips, "What if we can't catch him?"

He Cheng looked straight ahead, thought for a moment, and said, "It's not impossible to catch him. It's just a matter of time. If I can't catch him in a month, I'll stay for a month. If I can't catch him in a year, I'll stay for a year. At worst, I'll quit being the factory director."

Su Ran smiled, "It's hard for me to stay here for a year, how can I let you stay here forever."

He Cheng raised his eyebrows, "Yes, we are going to Beijing to attend university. We won't be here for long and will leave. However, there are more people in Beijing, especially in the university, so you have to be more careful."

After saying that, He Cheng sighed in his heart. Sometimes he really wanted to hide Su Ran so that there would be no danger.

......

Police station.

Zhao Qiang and Wang Zhifeng kept watching the surveillance footage on the street.

After Su Ran was in danger, the city allocated funds to make a batch of cameras, which were placed on various important streets, especially the roads that Su Ran would pass by. Basically, surveillance cameras were installed everywhere.

People in Haishi all know that there is a small black object installed on the wall on the roadside, but they don’t know what it is. When they ask others, they keep silent.

Internal personnel who knew about the surveillance also signed confidentiality agreements and cannot say anything, so after so many days, no one knows what it is used for.

Zhao Qiang looked at every unfamiliar face near Su Ran in the surveillance video and found nothing unusual.

He looked at the next intersection where Su Ran was going to pass, and the people on the road.

When he saw someone, he paused, then shifted his gaze and continued to look at someone else.

Wang Zhifeng was looking at the information in his hands. In the past few days, they had basically checked all the tall girls that Su Ran had contacted before, and there were no problems.

When he thought of the urging from his superiors, Wang Zhifeng frowned even deeper.

"Where do you think this woman is? How can she hide so deeply?"

When he said this, Zhao Qiang became irritated.

His eyes were still on the surveillance screen and did not move away.

Suddenly, he had a flash of inspiration, and everything he couldn't figure out before seemed to become clear.