Situ Yanxin and the other two deliberately avoided Tianying Security, but they didn't want to be found.

They put on the stance that they did not need help from others. If Tianying's people appeared in front of them at this time, it would cause conflict.

Pang Buwei naturally wanted to stop them and made a long-term plan.

But he didn't know what Situ Yanxin and the other two were planning to disrupt their plans, and they would inevitably be resisted by the other party.

If the trouble is not good, it turns into a killing of one's own family!

Can't Situ Yanxin do it?

Pang Buwei dared not promise. The other party just shot someone openly. Pang Buwei didn't understand what the mood and reason were. If the two people met and got fire, it would be difficult to stop the flooding, and it would be an irreversible situation.

"Start at them secretly, don't be discovered! We need to figure out what they are planning."

Pang Bushi issued an order. He was not qualified to make the final decision on this matter today, so he could only hope that Tang Xin would make decisions after he went to Boning.

......

As the sun is dusk, the time of day passes quickly.

Before six o'clock in the evening, Jin Xiaoliu, whose eyes were red and blurred, finally became excited.

He found the target through road surveillance!

"Situ, the van appeared again. They did not go to the airport train station, but took the bus out of the city. I guess they wanted to take the highway and go directly to another place to avoid the limelight."

Liao Chaoyang, who also had no rest for two days and one night, immediately stood up. He wished he could fly on his wings and kill these bastards.

Situ Yanxin pressed Liao Chaoyang's shoulder and turned to Jin Xiaoliu and said, "Wait a minute, we will go after you now, I'm afraid it will take some effort. I will buy some time."

After saying that, Situ Yanxin took out the phone again and called the kidnappers again.

After the phone was heard, no one spoke to each other, but the noisy background sounds on the other side could be heard.

"I know who it is. Some of you have families in Boning. I will not solve you first. If you want to endure the same pain and torture, you will first take surgery on your family!"

This time, Situ Yanxin took the initiative to hang up the phone.

"Now, let's go after them!"

After Situ Yanxin finished speaking, he took the lead and left. Jin Xiaoliu and Liao Chaoyang were fully armed and followed immediately.

This call was just Situ Yanxin cheating the other party, but as long as the other party hesitated, he might stop escaping and rush back to Boning City. This would shorten the distance and time for Situ Yanxin and the others to chase.

......

Tianying Security.

Pang Buwei put down his headphones, he eavesdropped on Situ Yanxin's phone call. He knew that Situ Yanxin was bluffing.

Situ Yanxin will not implicate innocent people, he will only go for the murderer.

Obviously, Situ Yanxin found the position of this group of people, and now he is setting up a formation to confuse the other party.

You can't always follow Situ Yanxin's butt, and it's too passive to fall behind.

Pang Buwei immediately copied the phone record and then took it to Tianying Security's technical department.

Specially let sound experts start analysis.

The sound expert over 40 is like a scholar with poor eyesight. His workroom is separate and has very good sound insulation. Even if he shoots indoors, he cannot hear it outside. This is also a necessary condition for his professional requirements.

He played the recording repeatedly on the audio, and then he began to operate the software, filtered the sound files and extracted different sound bands separately.

"Sound is actually an invisible fingerprint."

Pang Buwei's mind echoed his words when hiring this person.

Don't be a boastful person!

Situ Yanxin's words had nothing to analyze, and what Pang Wuwei asked for was the background sound on the other side of the phone, and used the subtle sound to infer the environment where the group of people was in.

The expert amplified the sound, which became deafening from the beginning. Then Situ Yanxin's voice became smaller and then disappeared. Slowly, only complex background sounds came from the sound.

In this field, Pang Buwei is an ignorant, so he can only hear noisy sounds and has no clue.

But the experts are different. He listens with his ears and concentrates on his mind. He adjusts the change of sound, either volume or speed with one hand.

"They are in the car, listening to the sound of the engine. The car is driving on the road, and there are the sound of cars passing by. The sound of horns. Listen carefully to this section!"

The "this paragraph" mentioned by the experts made Pang Buwei confused.

What is this paragraph?

The entire recording takes no more than 15 seconds!

And this paragraph mentioned by the expert is actually three seconds before the call ends!

No matter how carefully Pang Buwei listened, he was just catching up on the wind and shadows. He just wanted the result.

The expert was very serious and closed his eyes and said, "There is a faint sound of advertising, and there are advertisements playing outside the car."

"It's useless."

Pang Bu sighed for holding his forehead.

But the expert listened to the recording again and said, "There is another sound that comes from a distance, like the sound of a plane taking off, with a distance of about 5 to 8 kilometers."

Pang Buwei suddenly looked up when he heard this information. He took out a tablet computer and called out the map of Boning City.

The construction of airports is generally far away from the city center, and the airports of Boning City are no exception.

In the suburbs, Pang Buwei found this point, and then drew a circle at a range of 58 kilometers. Thinking of the phone call Situ Yanxin had made before that threatened the other party, it seemed that it might have scared the other party.

Then the group of people committed the crime in the morning and started running for life in the afternoon, so they naturally left the city.

Within the area where he circled with his pen, he found the main road out of the city, and on that road, he did pass by a small square, and it was common to play advertisements.

Pang Buwei took out the phone and called Boning Branch to stare at Situ Yanxin's employees, and asked anxiously: "Where are Situ Yanxin and the others now?"

"They got in the car and left the funeral home."

"Which direction did you go?"

"West."

"That's right!"

Pang Buwei used Situ Yanxin's current direction of action to determine the target location.

He immediately informed He Min of the news, from Tianhai to Boning, just from west to east. As a result, He Min drove over and shortened the distance.

......

Boning, Tenghua Group.

Du Chengxiao was preparing information in the office. In a few days, Tenghua Group was going to hold a bidding meeting.

Graphene and nanochips have a wide range of commercial uses, but Tenghua Group does not have independent brand products. They have been contracting electronic component processing for many years. To build their own brand products for a long time, and to maximize their profits in the short term, they are looking for people to cooperate. They can provide important materials and components and support national enterprises to create brand new star brands.

This bidding meeting is likely to lay the foundation for the development direction of Tenghua Group in the next five years. Therefore, Du Chengxiao is particularly cautious and comes to the company to do it personally. He has to personally review the list of companies participating in the bidding meeting and then delete it.

Seeing that the time for get off work was coming, the door of Du Chengxiao's office was still empty, and the lights were bright inside. Group CEO Zhao Qianzhong and Vice President Lu Tao walked in together.

"Brother Xiao, why don't you leave? It's almost seven o'clock, and it's dark outside."

Du Chengxiao looked up and smiled when he saw the two of them, "It happened to be here. Tang Xin just sent a text message saying that he would go to Boning in the evening. Let's have a meal together. Lu Tao, you have vegetarian food all year round. Please recommend a vegetarian restaurant. Tang Xin has a bad appetite recently. He probably can't eat big fish and meat. Let's eat something green and healthy today."

Lu Tao's expression was a little surprised. He was a vegetarian and often had nothing to do with everyone in terms of diet. It was the first time he asked him to recommend a restaurant.

But he was surprised that it was not a problem in this regard. He said with a serious expression: "Dong Tang is coming to Boning? Tonight? Could it be because of that incident?"

"Hmm? What's the matter? He didn't say it. He just had a few simple words in his text message, saying that he would be here tonight and talk about something. What are you talking about?"

Du Chengxiao was confused...)
Chapter completed!