While the drone design team was having a big meal at the hot pot restaurant, Wu Entai contacted Lin Haizhen by phone. After a few simple words, the two made an appointment to meet at Fuyun Teahouse at 13:00 in the afternoon.

Then Wu Entai called the teahouse and ordered a package of one and a half.

Fuyunlai Teahouse is where Wu Entai often goes to listen to operas. The front and interior are all retro designs. The first floor is a small stage and a seat, and the second floor is an empty design. The corresponding position to the first floor stage is a row of half-packs for watching operas, and the sides are all-packs.

Because Wu Entai went to this teahouse to listen to opera several times, the task force had already arranged casual investigators here. After determining the half-pack of private rooms, he immediately arranged surveillance and listening equipment in the room.

At about one o'clock, Lin Haizhen and his little secret drove from the company. About ten minutes later, Wu Entai also took Xu Jian's Ford out of his residence.

At about half past one, the two of them were basically putting their hands in the teahouse. On Wu Entai, Xu Jian stayed in the first floor and entered the private room by himself. Lin Haizhen and his little secretary went upstairs to meet Wu Entai.

After meeting, the two parties greeted each other intimately. After asking for a pot of tea and a few snacks, they quietly listened to the "Double Immortals' Moon Worship Pavilion" that just started on the first floor.

Wu Entai is a real drama fan. As soon as the actor downstairs opened his voice, he was completely involved.

Although Lin Haizhen really likes Cantonese opera, she crossed her legs and shook rhythmically with the actors' singing style. Her head was little by little with the lyrics, and she seemed to be very dedicated to listening.

Lin Haizhen's little secret was obviously not in good condition. He barely pretended to listen for a while at the beginning, but after a while he couldn't sit still.

He looked at Wu Entai secretly, and then his eyes began to "stroll" around the teahouse, with some impatient expressions vaguely on his face.

After struggling for about half an hour, I couldn't hold on, so I secretly touched Lin Haizhen with my feet under the table, which resulted in Lin Haizhen's stern gaze. I felt aggrieved and pouted, turning my face aside.

Although Wu Entai's eyes were always on the stage, he always paid attention to the movements in the private room. Lin Haizhen and Xiao Min had a small interaction, which was completely seen by his light.

After a smile appeared on the corner of his mouth, he raised his hand to signal the waiter who was guarding outside the box.

The waiter was naturally a plainclothes from the criminal police team. When he saw Wu Entai waved his hand and hurried into the private room to inquire.

Wu Entai told the waiter that he had something to talk to his friend and asked to change a full-inclusive private room. Although the waiter was surprised, he still led the three of them into an empty private room on the right side of the second floor.

At this point, the monitoring equipment arranged by the task force in advance has completely lost its effect.

Gao Sheng, who was the on-site commander, immediately activated the emergency plan, and asked the investigator who was dressed up as a teahouse waiter to take advantage of the opportunity to help serve teapots and snacks to glue a monitoring equipment under the panel of the tea table in the private room.

The field investigator who disguised himself as a tea customer entered the next private room, used the light guide to monitor the situation in the private room through the gap in the upper partition.

The audio surveillance just resumed, and Wu Entai called the waiter again, saying that the room was too noisy and he wanted to change to a private room far from the stage.

The waiter had no choice but to switch the three of them to the room at the end of the corridor as required.

Just when Gao Sheng was not sure whether Wu Entai did this was really a need for a conversation or a means of anti-reconnaissance. While hesitating whether to let the field place the monitoring equipment again, Wu Entai gave the waiter a tip of 200 yuan after the refreshment, and told him not to come in and disturb him without hesitation.

Gao Sheng was worried that the waiter would forcibly find a reason to enter the room and wait for an opportunity to place the monitoring equipment, which would arouse suspicion of Wu Entai and Lin Haizhen, and even be discovered, so he had to give up.

Moreover, if we wanted the technical team to arrange the light guide monitor, we found out that there were guests in the room next to the private room where the three of us were now.

After a brief hesitation, Gao Sheng ordered two field investigators who disguised themselves as tea guests to reveal their identities to the guests in the private room next door and to change rooms with them.

Soon two fieldmen knocked on the door of the private room next door. After opening the door and entering, the two fieldmen who disguised themselves as couples found out that something was wrong at the same time.

According to the pre-prepared plan, the male fieldman stared at the three people blankly and asked, "Is this the room of Uncle Zhao?"

After getting the negative answer, the male field office looked at the box number on the door again, picked up the phone and dialed the number. After a question and answer, he realized that he had remembered the room wrongly. He quickly apologized and pulled his female companion out of the box.

After returning to the original private room, the field office reported to Gao Sheng that there were three male guests in the private room next to Wu Entai, all sitting next to the wall of the private room near Wu Entai.

After entering the house, they found that one of the men was hurriedly put away something similar to a medical stethoscope. Moreover, the three of them had an extremely vigilant expression.

"When did those three people get into the private room?" Gao Sheng asked.

"About 1:00, I said I wanted to talk about the matter, so I asked for a full shop. I never came out after I got in." The head of the technical investigation team reported.

In the sudden and complicated situation, Gao Sheng used the fastest to confirm the structural diagram of the second floor of the teahouse. After communicating with the field investigator, he confirmed that the second floor lifting frame was very high, and the vertical ridge structure above the corridor was very good, and the depth and concealment were not blocked from the private room, which was suitable for technical investigation drones.

After reaching the conclusion, Gao Sheng immediately sent a technical reconnaissance drone into the teahouse and sent it to the second floor, and was released under the cover of two fieldmen.

After the drone operator controlled the drone to rise to the top of the corridor on the second floor, he found that although the private room and the corridor were not sealed, the wooden shape made between the ridge and the columns had a similar gap to the width of the technical detection drone.

The operator tried several times but could not guarantee a successful pass. However, the drone stayed in the corridor for a long time and was very easy to be discovered by guests.

In addition, because the lifting frame is too high, the situation in the private room cannot be fully monitored through the perspective between the ridge and the column. The sound pickup device in the corridor was seriously disturbed by the singing of the actors on the first floor, and the sound effect was very unsatisfactory.

"Contact Qu Sen and let him come as fast as possible!" Gao Sheng immediately gave a new order.

"Captain, Team Leader Qu's mobile phone is turned off." The technical investigation team leader dialed Qu Sen's mobile phone number and replied.

"Damn, today is Wednesday." Gao Sheng reacted and took out the phone and called his sister Gao Yue directly.

———

After Gao Yue's driving skills were fully fired, it could be said that it was very scary. When the Beetle stopped outside Gao Sheng's command car, Qu Sen's back was wet with sweat.

But at this moment, Qu Sen got off the car and got into Gao Sheng's command car directly.

"Crawl in through this gap, find a suitable place to drop the monitor, and then withdraw it." Gao Sheng used the most concise language to describe the situation and tasks on the scene to Qu Sen.

After Qu Sen took over the position of the drone operator, he rubbed his hands hard when he judged the distance through the image on the notebook screen.

Then, with his left hand steadily grasped the directional remote rod, his right hand removed the automatic balance correction of the gyroscope, and fine-tuned the power output of the drone blades.

As Qu Sen operates, the drone on the right side of the carriage increases its power and changes its flight attitude. It shows an oblique shape of low left and high right, and moves slowly forward.

Gao Sheng stared at the control screen of the drone, for fear that the drone would hit the mug next to him and make a sound.

"You said that this time, do we have to adjust the design of the technical detection model?" Qu Sen steadily pushed the joystick forward with his left hand, and a low voice came out of his mouth.

"How to adjust?" Gao Sheng felt his throat a little dry.

"Change the border into a soft glue design, so that even if there is a slight impact, there will be no sound." When Qu Sen spoke, the drone that was flying in an inclined state had successfully passed through the wooden grid.

"Why didn't you expect it?" Gao Sheng's tone was a little relaxed, but it was just a little relaxed. Because there were Wu Entai and the other two below the drone. No matter which of them, they just looked up and saw the "little thing" flying slowly on their heads.

"Nonsense, I haven't encountered this situation now?" Qu Sen turned on the gyroscope while speaking, and the drone instantly returned to its normal flight posture.

"Hurry up and find the right place. I'm so thrilling." Gao Sheng muttered, Wu Entai and Lin Haizhen were talking below, but he couldn't pay any attention to what they were talking about.

"Looking at your psychological quality, you are also the captain." Qu Sen mocked her, controlling the drone in his hand against the edge of the inner wall of the private room, slowly moving towards the window.

The side close to the corridor is too severely affected by Cantonese opera lyrics and accompaniment, so Qu Sen needs to find a place where the sound picks are clearer.

The structure of the roof of the restaurant was a little loud, and Wu Entai and the other two were not talking loudly. The drone almost circled around the private room, but could not find a suitable location for the radio.

Qu Sen controlled the surveillance camera to scan the private room, and finally caught sight of two pots of "dragon beard iron" placed at the window of the private room.

Gao Sheng looked at Qu Sen's adjustment scene and guessed what he thought, and said, "Damn, you're going to throw it on the floor, and today's affairs will be completely screwed up."

"Don't you dare?" Qu Sen murmured, thinking about the safest way to put it in his mind.

"I'll mess up my money." Gao Sheng gritted his teeth and made up his mind.

"Okay, that's manly." Qu Sen spoke and controlled the drone on the roof for a brief acceleration, and instantly pressed the drop button.

The small listener, which was a little over two centimeters, quickly fell below the private room as the inertia drew a parabola of a very small angle.

Gao Sheng didn't expect Qu Sen was not prepared at all, so he started to do it. The moment the listener fell, his nails were almost tilted into his palm. However, the screen on the laptop screen was changing rapidly, and it was impossible to see whether the listener had fallen into the flower pot.

"Lao Lin, we have been dealing with each other for a few years. Let's talk about it today." As Qu Sen switched the radio channel, Wu Entai's voice came out of the speaker after the software intelligent error correction.

When Wu Entai was talking, Lin Haizhen's little girl saw the leaves of the green plants in the window suddenly moved for no reason, as if she was touched by something.

After turning his head and looking at it, he didn't notice anything abnormal, he subconsciously looked up and put it on the flower pot.

At this time, the technical reconnaissance drone had already flew over the private room door under Qu Sen's control. After being slightly raised, it was hidden in the shadow of the beam of the imitation of solid wood.

Gao Sheng pursed his lips and saw from the picture that Lin Haizhen's Xiaomi glanced around and found nothing. She quickly refocused her attention on the two men who were talking.
Chapter completed!