Why does Yanagida have such a clear and profound memory of this flower? It must have been of great memory value to him.

What does it do? There are potted flowers everywhere on the windowsill of the house on the street side. Why he remembers this flower so deeply must have a unique meaning to him, which is likely to have a lot to do with his latent task.

Ning Zhiheng is in the spy war of preexistence drama, he also had seen similar plot in the novel, a flower is very common, but in specific place, specific time puts a flower meaning completely different.

If I'm not mistaken, this is someone sending him a message through this flower.

As for what kind of information? This is a Chinese rose, and Chinese rose because of its long flowering period, so in Nanjing is a very common flower, so there is nothing wrong.

But it must mean something different. It's all up to him to dig, but there's no denying it's an extremely important clue.

So now how to use this clue, Ning Zhiheng is really very difficult. He himself, whether in his previous or present life, was unfamiliar with the methods of criminal investigation and had little experience.

In spite of his meticulous mind, he had been in contact with agent intelligence for too short a time, little knowledge of intelligence and criminal investigation, and no rigorous training, which was not his specialty.

He was only good at some of the combat knowledge he had learned in two years of military school. With his shooting and combat skills, he is good enough to participate in the task force, but there are some difficulties in intelligence detection.

Military intelligence is such a dedicated to the activities of agents, agents are most familiar with the means and good at the intelligence section. The only intelligence officer he came into contact with was huang Taiguang.

So how can we skillfully reveal this clue to Huang Taoguang, let him continue to pursue, this has become a difficult point.

For Ning zhiheng could not explain how he got this clue. It was only by virtue of the miraculous power of the bodhi tree that he got a clue.

More importantly, he did not want anyone to know the existence of the philippe Tree, which is the biggest secret of his past life. It is also the fundamental place to survive, is the magic weapon of his life to be able to live peacefully. He would never tell anyone, not even the people closest to him.

Think of this Ning Zhiheng very headache, but he must try to think of a way to remind Huang Taoguang. He decided to contact the huang Taoguang first, and then play it by ear, in order to be able to dig out other lurking Japanese spies, he must go all out.

Ning Zhiheng hurried to the intelligence department, asked to Huang Taiguang's office. At this time huang Taoguang is in the office, looking at a pile of materials in his hands is very headache.

As the lead agent in the Japanese spy case. After all this effort, it's still nothing, just three cold bodies.

He knew from experience that this was only a tiny fraction of a Japanese spy team. The tissue behind it doesn't hurt at all.

No matter how the report is written, such a result will hardly satisfy his boss.

At this time the knock on the door sounded, he opened the door to see, it was Ning Zhiheng standing at the door, let him very surprised.

This young fellow action unit. He had met him only twice, once during the last operation to arrest Fu Cheng and the second time just a short time ago in the basement of the torture department.

But for an intelligence officer, he has a pretty good memory. He remembered the young officer information, in the first meeting had been introduced to each other, the young officer called Ning Zhiheng, vaguely heard of this person behind is some background.

"I don't know what to do with my sudden visit." Huang Taiguang very enthusiastic will ning Zhiheng please into the office.

Ning Zhiheng looked around and at a glance swept to the desk that a pile of files. Probably the files on the Yanagida case.

He smiled and said, "I have come here to ask you something. Also hope brother Huang not stingy grant instruction."

"Oh, your brother has something to ask. Please tell me everything huang knows." Huang Taiguang enthusiastically responded, he turned to Lin Zhiheng bubble a cup of tea. They sat in front of him, facing each other.

Ning Zhiheng thought for a moment and asked softly, "Brother Huang, I want to ask you something. In your experience, this Fu Cheng in the spy organization, should be a what kind of role? What part does he play?"

Huang Taiguang smiled and nodded, he knew Ning Zhiheng was just transferred to the action team of whampoa graduates, and the Whampoa Military Academy spies on this side is not a systematic training professor.

It can be said that in terms of training and training of intelligence agents, the Government of the Republic of China was not very mature at that time.

There is a lot of spying and knowledge that is difficult to understand unless you are a professional like them.

Since Ning Zhiheng joined the military intelligence, want to know more about this knowledge, is very should, is also very reasonable.

Huang Taoguang appreciates young people like Ning Zhiheng very much. Such people are good at learning and like learning. They are willing to learn new knowledge.

The current country is so short of intellectual talent. He was willing to teach Ning zhiheng the basics of secret service.

"We found a radio station at Fu Cheng's place," he replied with a smile. "It shows that he is a special messenger. We have a common name for this kind of person, is "carrier pigeon".

Homing pigeon as a very key link of the intelligence spy organization, it is also the spy group and spy headquarters to transfer information transfer station.

All the information will finally be gathered to his hands, to the spy headquarters to communicate, but also through the radio to accept instructions from the superior. In The side of Fu Cheng, there are two Japanese spies specifically lurking down, for him to coordinate and cover. One can imagine the importance of his status.

We usually refer to spies in our government as moles. Such spies are also valuable because they are often infiltrated by the enemy at great expense, and are even more testable and invisible than our own people.

A spy team may have one or more moles, but only one homing pigeon. Because of its importance, this time Fu Cheng's capture, will certainly alarm the other members of the group.

This reaction time will be short, and then they will quickly go into a dormant state, and when it is safe to do so, they will be activated by some other pre-agreed means, and then they will move on.

Such a way of action for us to solve the case, the difficulty will increase exponentially, even the hope is extremely slim."

Realizing how important Yanagida's role was in the organization, Ning asked, "How many ways does a mole usually send a message to a homing pigeon?"

Hwang explained patiently, According to what we know, there are several types of information transmission.

The first is direct contact. The two men pass information directly through the joint. The advantage of this way is direct and effective, but the risk is larger. This means that the two parties must know each other, even know each other's hidden identity. If you miss one of those links you can trace it back to the rest of the organization. This is the most basic way.

In the second way, a written message was sent, the mole sent a letter directly to the homing pigeon. According to the set in advance good argot and word order, the information content embedded into an ordinary letter by post delivery directly, this way has good security, but the drawback is very big, mail delivery time will be very long, because now the postal management system is not strict, mail delay or even lost situation is very serious. If something like this happens, it is out of control, so it is not usually passed on in this way.

The third way is to use indirect transmission, usually from a specific hidden location, often called a "dead box." The mole had placed the information in the dead box, and the so-called dead box must have been a very secret place, and the pigeons, to minimize the possibility of exposure to the dead box, could not frequently check for information. This required the mole to warn the pigeons in some other way to pick up the information. In this way, there is no contact at all, neither knows the other's age, appearance, or hidden identity. The advantage is that it's very safe to pass on information. The downside is that this approach is cumbersome, which is good for information that is not very effective. Not a good place to pass on urgent information.

They even used newspapers to transmit information. Information was also included in newspaper articles in agreed code and order.

This kind of way is used a few years ago a lot, it is said that the underground party of red party often uses this way to pass information. But it's rarely used now.

Because this way is also more risky, now people pay more attention to this aspect, we have a special team to the market circulation of the newspaper to carry out professional inspection, found suspicious information will be screened."

Ning Zhiheng listens to just know the knowledge inside spy work is really too deep, means of various ways and means, do not participate in it, it is impossible to think of.

'Is it possible that the mole had his own spare station? We get information and send it directly to headquarters. Ning Zhiheng thought of a more direct way, unwilling to continue to ask.

"It is also possible, and as far as we know from the Japanese intelligence service, it is very rare.

Because it has many disadvantages. As a mole, he was able to infiltrate and even gain access to our classified information, so his identity must be an important member of access to classified information, people who are very important to the espionage organization.

The cost of cultivating such a spy is very high. Any one of these spies is valuable to the organization. They would not expose such a valuable agent to unnecessary risk.

Because now the spy service has a telecommunications department that listens to all kinds of radio stations. For example, we in military intelligence have a relatively advanced telecommunications section.

If they pick up any strange radio signals, they'll check them out. Determine the frequency of transmission, location range. Once searched, the radio station is easily exposed, so it can be said that the telegraph itself is more dangerous, the risk is still more.

Japanese spies are very strict in their ways of doing things. They usually divide the labor. The mole gets the information and the carrier pigeon transmits the information, so the risk can be divided into two links and the possibility of exposure can be minimized.

The red Party underground party that the central Party affairs investigation bureau seized last year, it is because the mole that lurk sends a report directly and be suspected identity, but that mole is very decisive swallow a gun to kill himself, ultimately also be nothing.

And so on and so forth. There is no fixed way. It is all on a case-by-case basis." Huang Taoguang continued to explain clearly.