Boss Dai's arrest task was assigned, and before noon, news had already come back one after another.

The Nanchang Xingying Investigation Department captured a Japanese spy under the pseudonym Jiang Changying, who served as a company commander in the Nanchang Garrison Battalion.

This was the highest status among the 36 Japanese spies, and then, at six o'clock in the evening, Japanese spies in Hankou, Zhenjiang and other places were also arrested one after another.

Only a few Japanese spies in Guangzhou have no news -- Chen Jitang, who is involved in military and political independence, and the Nanjing government has no choice but to inform Chen Jitang that it is up to him whether to arrest anyone or not.

By the time all the members of the sixth group returned to Ji'e Lane for class the next day, all 36 Japanese spies, except for those in Guangzhou, had all been arrested

All Japanese spies are arrested on only one charge:

embezzled military supplies and sold military intelligence to the Communist Party.

Why don't they disclose their identity as Japanese spies?

The reason is simple, too much.

Catching one can play a role in denouncing Japan's ambitions and boosting the morale of the people. But if you catch more than thirty, then ...... It will only make the masses who do not know the truth despair about the party-state.

Think about it, just one Japanese spy case has involved so many party-state officials, what if you think about it further?

It's chilling!

What's more, the matter involves the locality, the appointment and promotion of officials, etc., under the interference of intertwined interests, the principal is unwilling to let the matter further ferment in the case of changes in the Northeast and the Nanjing student tide.

Therefore, the final result of the disposition of these thirty-six people came down before the sun set the next day: no interrogation, they were shot on the spot!

This method of dealing with it inherits the tradition of the Kuomintang Party that has always been Qing Communists: it is better to kill 3,000 by mistake than to let one go!

……

The trial of the case is in full swing, and the training work of the six groups is also proceeding in an orderly manner.

It's just that more and more people are listening to Geng Chaozhong's lessons.

Facts speak louder than words, and the leader of this group of six groups is indeed beyond the reach of others in the work of spies.

From locking Zhou Chunlin's address in less than three hours, to obtaining a confession in a rapid interrogation, to besieging Ikeuchi Baoxiong, the whole process was busy but not chaotic, and his thinking was extremely clear, and all the spies who had read the case file admired it.

Therefore, just after dinner that afternoon, not only the six groups, but the entire secret service, including the secretary Zou Zheng, the secretary He Zhichao, and some veteran members of the action team, were crowded into a conference room of less than 40 square meters early.

There was a secret communication class in the evening, which was said to be very practical, and the instructor was Team Leader Fang - but there were also those named Sixth Brother, and as time went by, not only the sixth group, but even other action groups followed suit and called it so.

At sunset, Geng Chaozhong slowly walked into the classroom, strafed the stage, found that there were many more unfamiliar faces, smiled slightly, and was about to speak, the door was pushed open again, and when he looked closely, it was actually Boss Dai!

"I said why the secret service is empty, it turns out that they all came here!" Boss Dai laughed, walked to the back and found a seat and sat down, and said to Geng Chaozhong:

"You talk about yours, don't worry about me!"

Boss Dai actually came to listen to the class!

Everyone's hearts were in full swing, and they all straightened their backs, and Geng Chaozhong's forehead was overflowing with cold sweat - this Boss Dai was roasting him on the fire!

Glancing at the smiling Boss Dai, Geng Chaozhong coughed, and said without changing his face:

"Today I am talking about some practical skills in secret communication, including the secret transmission method, the secret storage method and the tracking method, which are very important, and everyone must take good notes."

Everyone looked serious and picked up the pen and paper in their hands.

"There are many methods used in secret communication, and here are some of the most common ones:

First, the chemical method, this method is very common, and can be divided into two types: potion development and water and fire development.

The potion development method is to use a potion to write on a white paper to dry, there is no trace, if the second potion is used on it, the handwriting is revealed, as follows:

starch slurry, iodine or light hydrochloric pickling; Gallnut writes, green rock washes; Milk is written, iodine is washed; Rose fine writing, rose dew washing;

The second type of water and fire development method is as follows:

Sugarcane water is written, orange juice is written, rice soup is written, and the fire is yellow; Green cobalt writes, fire bakes blue; Written with light nitric acid, the fire bakes a black-brown color; Soda, salt water and alum water are written, and the fire bakes a black-gray color. ”

As Geng Chaozhong talked, everyone's faces showed surprise, everyone knew some secret writing methods, but such a comprehensive secret writing method was the first time they had heard of it!

Everyone picked up their pens to remember, and the people with slow hands shouted from time to time: "Sixth brother, slow down!" This led to a burst of laughter.

Geng Chaozhong also laughed a few times, repeated it a few times, waiting for everyone to remember them one by one, and after everyone finished remembering, he spoke again:

"In addition to the chemical law, there is also the physical law, the physical law is to write the document, secretly hide it in ordinary objects, and write important documents in a very fine way, so that people cannot find it, as the saying goes: one person hides things, ten people are difficult to find."

Everyone listened quietly.

"The work of a spy is fundamentally a work that emphasizes wit and does not emphasize fighting strength." Geng Chaozhong spoke eloquently and continued:

Here's how to hide it:

On the reverse side of the trademark paper of various cans, write with a hard pencil or potion, and the tin sealing of the canned food as it is is still melted with a soldering iron, put it into a secret document, and the can is still restored with a soldering iron.

The stem of the fruit was gently pulled out, and the small secret document was wrapped in wax paper, and the stem was still put back as it was.

The sandwich of the garment or the sole of the cloth shoe is disassembled, and the secret document is put in, and it is still sewn.

Pull out the shredded cigarette and put in the small file, still tucking the shredded tobacco into the two ends and cutting it evenly.

The canned biscuits are dissolved with a soldering iron, the biscuits are taken out, and the same foreign iron is made inside the jar and put into a secret document, and the biscuits are still sealed as they are.

Female traffic officers may wrap small secret documents in wax paper or eraser and stuff them into their menstrual periods or hide them in their hair buns.

Secret documents can also be concealed in the compartment of a thermos, but must be wrapped in wax paper, etc. The paper used must be thin and small of good quality. ”

Everyone was amazed again, and all kinds of whimsical ideas conveyed by the information were really suffocating!

"Good! Listening to your words is better than reading a book for ten years! ”

Dai Yunong applauded and applauded first, and everyone applauded one after another, the atmosphere was warm and the emotions were enthusiastic, comparable to the star chasers of later generations!

Geng Chaozhong gave up his humility again and again - he didn't plan to teach this class, but after Gu Shunzhang's rebellion, it was meaningless to hide his own private interests.

Because, these things are the Cheka courses taught to him by Zhu Fatzi, if he doesn't talk about it, Gu Shunzhang will have to talk about it sooner or later, rather than letting Gu Shunzhang talk about buying people's hearts, it is better to take the first step yourself!

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