Lin Mo brought a bench and stood behind the door to check the mechanism device on the top of the door.

A small nail was nailed on the top of the door, and several hair-thick threads were wrapped around it. After careful observation, I realized that it was really hair, which should be made of two or three hairs.

On the wall above the door, there was a small blade fixed outside the hair. The blade was almost stuck to the hair, looking extremely sharp, and the hair was tight. I guess it would be cut off by just opening the door a little.

Several hairs are connected to one end of a copper piece, and at the same end there is a slightly thicker black thread that is pulled to the wall above the small device.

After careful observation, it should be a elastic thin rubber line, i.e., rubber band. It may be a narrow circle cut under the bicycle inner tube, which is to straighten the hair.

The other end of the copper piece is connected to the line connecting to the speaker. After the lower end of the small set, the copper piece should be movable and flipped. Once the hair is cut, the copper piece will be pulled by a rubber band and flipped upwards and contacted with the upper end of the small device.

There is a V-shaped copper piece at the upper end of the small device, connecting the line connected to the switch. The V-shaped copper piece is facing the rubber band in the middle. There is no doubt that the copper piece cut off the hair will definitely come into contact with the other party.

After thinking about it, Lin Mo first untied the rubber band tied to the nail, and the copper piece standing perpendicular to the wall turned over, and several hairs also hung and loosened.

He touched the nail that was nailed to the door, but it was not very hard. He shook it hard for a few times and pulled it out. Lin Mo jumped off the stool and opened the door, allowing Xiao Rui and others who were anxious to enter.

Xiao Rui first took the brothers from the third team and listened to Lin Mo's general introduction at the door, and passed through the room. The main purpose was to eliminate the dangers of traps set by the other party.

Fortunately, after the inspection, no mechanism trap was found. Then the area that might have been modified was dismantled, so they were worried about the mechanism being set up inside.

After dismantling the shell and checking there was no problem, the telecommunications room technicians entered the venue to check and dismantle the renovation. The members of the intelligence group II also entered the venue to assist in the search records of the house to see if there were any valuable clues.

What Lin Mo is most concerned about is the modified places. The small device is indeed a power switch, but the opening and closing point is designed as a reversible copper piece.

At the light bulb switch, the wire was indeed connected to the power supply. The original receiver part in the speaker has been removed, and the wire of the pager has also been connected to a small wiring device.

On the small connector, in addition to the pager wire, there are two other wires connected, one is the window line, and the other is the small device to take over.

There is also an electronic device connected to the small device. According to the technician, after the electronic device is powered on, it can automatically interrupt the current containing special pulse signals, which can make devices such as the receiver and ringer emit specific sounds.

The receiver receives pulse signals in the current used to emit sound, while the ringer uses the current itself. The interruption of the current can cause the ringer to stop at a special rhythm. There is no need to say more about the use of the sound.

At the same time, the other two wires of the connector, especially the pager line, do not have devices that prevent current return. That is to say, once the device is powered on, the receiver in the apartment will also work and make a sound.

Needless to say, the way to the office is to remind the other party, but there is something to say about the apartment. It is definitely a warning reminder, but what is the warning reminder?

Is it a reminder that something is wrong here, the door is opened accidentally or something wrong with the small device? Or is there any other tricks in it, and the door will be opened for other reasons?

"Captain Lin, when you open the window, are the latch on the window locked?" Xiao Rui walked to Lin Mo and lowered his voice to inquire about the situation.

"Of course it was locked, otherwise I wouldn't have broken the window! Are you trying to find out how the other party left this room after setting up the trap mechanism? "

"Yes..." Xiao Rui nodded and explained: "I just checked it. After the mechanism device on the door is laid out, the door may cut off the hair and trigger the mechanism as long as it is slightly opened, and it is impossible to get out of the door.

I checked the window latch again, and it took a little effort to plug it in. Moreover, the window is very tightly fitted after closing, so it is difficult to plug the latch from outside, so..."

Lin Mo heard this and said, "There is actually no need to worry about this issue. No matter what means or method, people just go out. Just know this. Instead of worrying about it, you might as well take a look at this hole?"

While the two of them were talking, Lin Mo pointed to the hole with exposed threads between the windowsill and the window frame.

Xiao Rui looked at it after hearing this, frowned and said with some uncertainty: "You mean that closing the window is by this hole?... No, right... I just checked it, there shouldn't be any trace left, nor right... It's not right... It can be to scrape the mortar after closing the window..."

Lin Mo heard the black lines on his forehead and said speechlessly: "I said, don't stare at how people go out and how the window is closed. It's meaningless. I can think of more than one kind of thing.

Take the door as an example. Connect the two ends of the leather to wire it up. Before going out, use leather to block the blade edge. The elasticity of the rubber band can open the door so that the thinner person can go out.

After going out, put the thread above the door, close the door to the appropriate position, pull one of the threads, pull the thing out of the gap above the door, and then close the door, it will be like this."

Xiao Rui suddenly realized, his face blushed for a moment. He was confused and studied his feelings for a long time. From the beginning, he was wrong and he was just thinking about meaningless things.

"Look at it, you really can't see anything else in this hole?" Lin Mo pointed to the hole again and asked.

After looking at it and then, Xiao Rui finally shook his head. Lin Mo told him about the previous thoughts about the hole, but he still shook his head awkwardly.

"Forget it, I guess the burden on your thoughts is too great, and your thinking will not be able to diverge for a while. I'll analyze it for you!"

This chapter is not finished yet. Please click on the next page to continue reading the exciting contents below! After expelling Xiao Rui, Lin Mo organized the language and said: "Look at the mortar that was burying the thread, it was smoother and more detailed, and the color was well-formed. If you get far away, you can't see any new and old traces. Although it is a bit new, it gives people the overall feeling that it is just a little protruding here.

What does this mean? The color description has been put into practice, and even compared on-site inspections. The color of the exterior wall will definitely change with the influence of time and environment. It is difficult to achieve this level without careful comparison and adjustment.

Is this a clue worth checking? In addition, the scraping is smooth and detailed, and it also makes relatively regular protrusions, which must be of a certain level.

But the other party will not do this professionally or have background experience in this area, and it is also ruled out that the possibility of asking professionals for advice and learning, because if you have experience or have learned this hole, it is unlikely that the other party will make such a mistake by being cautious and meticulous in color issues, which means that the other party is likely to have learned it by himself.

Then the basic portraits of the person who does this matter are revealed. A person who acts cautiously and meticulously, is very strict with details, and has strong ability to learn by himself.

Further, the other party’s working hours are not fixed, and there is more time for them to study by themselves, there is a large and relatively private space for them to practice, and there is rich experience and experience in mobile phones.

In addition, the other party may be a confident and arrogant person. He lives alone and usually lives alone and cannot get along with his neighbors. He has a strange temper in his eyes, probably no friends or interpersonal relationships."

Xiao Rui was confused when he heard this, with a question mark on his head, racking his brains, but he still puzzled, and asked, "It's still understandable to the previous ones, but how do you get these if you extend them?"

Lin Mo smiled and replied, "I won't explain the following things clearly to you, just keep them for you to think about them yourself, but some may not be correct, but they can be used as references for investigation."

After saying that, Xiao Rui was left to think about it himself, and he went to the telecommunications room technician and sent Genyan to learn about the situation with the other party.

"What is the skill of the person who installs and modifys these things, or what level is needed for those who can do this kind of installation."

"Thank you..." Lin Mo lit a cigarette for him, thanked him and replied: "The modification level is very high. Although it is simple, it is just a combination of some devices, but you will know how difficult it is if you really do it.

There are many problems in the compatibility and coordination of various devices and handling of various details. I can’t understand some of them, but I just guessed what functions it is and what functions it does.

This may not be very intuitive, just say that! There are few people in the telecommunications room that can handle this work. Of course, this refers to starting from scratch, from thinking about a modification method, then completing specific modifications, and finally assembling together to play the corresponding function.

From thinking about how to achieve the required functional effects under limited conditions, to how to design and modify them, and then to the best completion, this process requires extremely high standards. If you just follow the script and draw the cat, then many people can do it in the telecommunications room.

As for the level of installation, there is no need to consider this. The modification and installation must be the same, because the restrictions and limitations of the name type, from thinking, design, modification to installation, and not inspecting and debugging on site, you can’t handle this matter in the rear. In other words, the design and modification are all completed here, so there is no need to install it by others.”

Lin Mo nodded, asked about the details and other situations, and then said: "I have to trouble you again. Follow the line you connected to see if there are any other problems."

Then Lin Mo arranged the members of the intelligence group 2 to ask the attic residents if they had witnessed suspicious personnel activities, servants and nannies, and they usually stayed in the building most of their time. I guess they could see something, but I didn’t know if the other party left an impression on them, and if they could still remember it after a while.

"Old Xiao, let's go downstairs to see the apartment..." Lin Mo called Xiao Rui's apartment manager and several operation team members to rent the apartment to the mysterious tenant.

"Brother Lin, there is something wrong with that apartment? Isn't it because of the cover for this servant's room?"

"It shouldn't be that simple..." Lin Mo shook his head and said softly: "I felt something was wrong after listening to the description of the manager at the stairs.

The alarm device in the servant's room can not only send alarm messages to the office phone, but also send alarm messages to the apartment pager. This arrangement may only prevent the door from being opened due to accidents or other reasons.

But other possibilities cannot be ruled out, especially after integrating the statement of the manager, I suspect that the apartment may have a purpose, and it is likely to be a fixed connection location or a dead mailbox for sending information. This is a consideration of the situation where many strange visitors came there.

In this way, in addition to preventing the exposure of the dead room and unable to remind the office of the situation, if the exposed line of information sent to them is touched, the alarm device of the servant room will be another insurance.

If the person who came here investigated carefully, it is likely that the existence of the dead apartment will be discovered from the connector first. For the office, there will be double insurance on this detection path.

Whether you open the door first or discover the Death Room apartment first, the chance of getting an alarm on the office will be higher. If you open the door first to trigger the alarm, Death Room will also have a chance to escape, or delay the investigation to win the office time to escape."

Xiao Rui was about to nod and agreed, but remembered what he learned after coming over and said, "I remember there was a destroyed teahouse stronghold, which seemed to be directly conveying information with the Japanese spy hidden in the office?"

"At least, judging from the current information, this is a very reasonable inference. As for the teahouse, it may be just a special case or a special case, and the possibility is not low.

The action was a bit hasty before, and I didn't inform you of some details. The teahouse belongs to a Japanese semi-official and semi-civilian institution, and it is likely that it is not in the same way as the office.

The teahouse and the office are likely to be just temporary cooperation. It is estimated that the office is guarding against each other! Otherwise, it would not have been possible to personally arrange the person to go over and hand over the connection, so that the other party can send it to the nearby or office faster and more convenient?

But the office probably didn't want the other party to get more information. In addition, we misjudged the situation and believed that we would not have time to take care of them at this time, so we arranged to swagger over the joints.

As a result, we not only touched the office, but also the teahouse on the other side. By mistake, we had to attack the teahouse immediately. We followed the clues and touched the death room, and then touched another group of Japanese spies. After the operation, more information emerged to be further explored..."

"...Okay... It's here... Remember to search carefully and don't miss any details..." After the apartment manager opened the door with the spare key, Lin Mo gave a few instructions.
Chapter completed!