Shangguan Wan'er's office is not in the middle of Liangshan Building, located at the end of the left wing of the second floor, she alone occupies four consecutive rooms, namely the secretary's room and the guard's room, which is now guarded by Ah Yi, the second is a spacious reception room and a small conference room, the third is her office, which can also be called the official hall, and the fourth room is the confidential room. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

In the official hall, the area is quite large, equal to three ordinary rooms, there are hundreds of square meters, there is no pillar in the middle, showing the extraordinary architectural level of the Tang Dynasty, in the middle is a wide desk, below is a set of wooden tables and chairs, and there are wide bookshelves on the side, which seem to be inconspicuous, but in fact it is rare, because the windows are inlaid with glass, and the transparent glass of that period is a rare thing.

Wei Xi and Shangguan Wan'er sat down side by side in a long sand in the official hall, and Wei Xi handed over a large number of top-secret spy materials, which was also a rarity.

The first document: the working methods of the surveillance personnel.

The foreign envoys who arrived in Datang and some Hu people who had lived in Chang'an and Luoyang for a long time became suspects of Datang's opponents, so they had to be monitored to see who they were in contact with and how they would send Datang's information.

"Only one of a thousand crooked nuts may be a spy, and he may cause us 10,000 losses, but you have to keep track of those 1,000 people, so surveillance is important and not easy!" Wei Xi sighed.

"This is also a manifestation of finding pearls in the cabbage pile!" Shangguan Wan'er borrowed his words, Wei Xi's jaw was headed.

There are three main elements of the monitoring method: observation stations and relay tracking, and archives.

The observation station is generally equipped with two people, one of whom is a painter, who stays outside the enemy's residence or near the place where he has been many times, rents a room or is located at a commanding height, and uses a telescope, which is also a rarity at that time, the telescope of that period was made of crystal at the beginning, and in the later period, Wei Xi imported a batch of transparent glass polished lenses abroad, but the price is still high, and the supply exceeds demand.

When a suspect is observed, it's the artist's turn to show off their skills, and they must draw down the suspicion's appearance so that it can be archived.

"So there are a lot of supporting personnel in an industry, and as soon as you open a business, you have to take many things into account."

"It's not easy to find a painter, so we have to train ourselves, and there are many things that are different from the world, so spy school is inevitable!" Wei Xi said.

In addition to drawing portraits, it is also necessary to track and see where the suspect goes, and it is the turn of the relay tracking method to show his skills, and it is easy for a person to follow the enemy for a long time to be exposed, so he has to change the manpower halfway.

"For example, a child selling baked cakes and a couple pretending to be husband and wife are less likely to arouse suspicion." Wei Xi pointed out.

The actions of a man and a woman are less noticeable than a single man or two men, but there are risks, such as men and women getting into estrus when they get together, which is harmful and unhelpful to the discipline of the spy force.

"It's a contradiction, you have to guarantee a success rate, but it comes with risks." Wei Xi pointed out: "When there is an adultery between men and women in the division, they have to be separated and transferred, and office romance is not allowed. ”

"Really?" Shangguan Wan'er's gaze bet, watching Wei Xi's feet next to her feet, and her hands touched her hands from time to time!

"I'm different from you, I'm not an official member of the Military Intelligence Department, I'm just a consultant!" Sensing what she meant, Wei Xi smiled dryly.

After completing the tracking task of a shift, the tracking personnel return to the workstation, not in the headquarters of the Ethics Workshop, but in Dunhuafang, because if the tracking personnel enter the headquarters of the Ethics Workshop, it is easy to be exposed.

At the workstation, the followers were asked to fill in the tracking records, hand in the portraits, and complete the preliminary file preparation, in duplicate, one to stay at the station, and the other to the headquarters.

So, when there are more and more files, there are not enough rooms at the headquarters.

The second document: cipherography.

Cipherwriting is used by spies to impart information, where spies write fake letters for cover, and then write ciphertext on the back of a paper or on a blank sheet of paper with alum, rice soup, white vinegar, milk/juice, etc., or even saliva!

The method of looking at the secret letter is to heat it, so that the ciphertext of milk, juice, and white vinegar will be displayed. If not, sweep the paper with a brush dipped in diluted ink, and the secret letter written with saliva will be revealed. If that doesn't work, putting ciphertext paper on water will also reveal alum ciphertext.

As for the rice soup ciphertext, it can be diluted with iodine wine and swept across the ciphertext paper, and the text will be displayed.

Alum already existed in ancient times, and iodine wine was the invention of Wei Xi's system, and crooked nuts were absolutely none!

The third technology: cryptography.

The concept of Tibetan poems Shangguan Wan'er understood as soon as she heard it.

But the combination of Arabic numerals in a certain book, a certain page, and a few rows and columns made her eyebrows flutter, shocked by this magic number, so that Wei Xi took the opportunity to eat her tofu and put her hand on her thigh!

"The caravan can hide it in the reconciliation book and bring it back, and the crooked kernel will never find its pattern!" Wei Xi taught her: "So secrecy is very important, this code book is designated by you, only you and the translation room know!" ”

The measures for secrecy are perfect, and all people who join the Military Intelligence Department have undergone security checks, including external transfers and personnel reviews, and the people who are examined are from Shangguan Wan'er, but the person who examines her is Wei Xi, and her files can only be added to the headquarters, not accessible, and the only people who can see her information are the emperor and queen and the personnel designated by them.

Portraits are required to enter and exit the gate, and a pass is issued. Under no circumstances should you take documents out of the office, you should not put any documents in the drawer of your desk, and you must lock the door when you leave the office for even ten minutes.

The above content was told by Wei Xi to Shangguan Wan'er, and the safe was shown at the same time.

One is a locked safe, and the second is a digital turntable-type password safe.

When the second type of safe was displayed in front of Shangguan Wan'er, Wei Xi turned the number, and she was shocked!

Wei Xi was satisfied to see the incomparably beautiful Shangguan Wan'er in a daze like a primitive person seeing an airplane!

This safe is thick, produced by the Tang family in Liangzhou, and has been tried in Wei Xi's system.

"The official's password or key is kept by each person, but you have a backup, so that you can get any document from an official's safe, day or night, and you are the person who has the most secrets." Wei Xi shrugged.

"These measures are very realistic!" Shangguan Wan'er nodded again and again.

……

Wei Xi gave one secret information after another, and he reminded Shangguan Wan'er not to submit the results of espionage at one time in the report to the queen of heaven, but to use them in batches and after verification.

"You have to be involved in every aspect of the process as much as possible and be familiar with the business so that you don't get blinded by the people below." Wei Xi admonished her.

"Thank you!" Shangguan Wan'er thanked the authentic.

She really should be grateful to Wei Xi, because this is a completely new field, not to mention her, most of the Tang people don't know what a spy is.

"How can you thank me?" Wei Xi said with a wicked smile on his face.

Shangguan Wan'er's way of thanking her was that she took Wei Xi's hand and entered the fourth office ---- confidential room!