Zhao Ziliang called Ning Zhiheng to his office and placed the documents in front of him.

"The situation ahead is getting tense. Both sides are deploying troops and generals. The war is about to break out. Yesterday, the seat of the house went to Shanghai to preside over the intelligence work. Before leaving, he specifically instructed us to speed up the crackdown on Japanese spies. However, I have not had any clues about the case these days. It seems that if you still want to do it, I will not hold on."

Zhao Ziliang has not yet had any idea about the case these days. He knew that he would still have to find an expert Ning Zhiheng to deal with Japanese spies.

This was long as Ning Zhiheng expected. He did not make any politeness or refusal. He took the document and said with a smile: "These small things are still worth it. You are troubled by the section chief. I will definitely arrest the Japanese spy in a short time!"

Zhao Ziliang laughed and pointed at Ning Zhiheng and joked: "You only dare to say such things in the entire MIIS, but it is indeed the case!"

He knew that his beloved general had the ability to detect and investigate, which was also the basis for his current position in the Military Intelligence Investigation Office.

He continued: "Now that the seat is not here, the work of the MIIS is chaired by Deputy Director Huang. He is your backer, so you naturally don't have to worry too much. Besides, he is usually a ignorant person, so I will do the specific work. Now, the intelligence department is difficult to be glorious, and it is also a role for us. If you want to call it, just speak up and don't give them face."

With his words, he became arrogant. Obviously, his mentality had changed drastically at this time, and he was far from what he looked like a year ago.

Ning Zhiheng returned to his office, opened the file, and read it carefully.

It hasn't been long since the war began. Although Ning Zhiheng didn't want to participate, as an intelligence officer, he had to do the best he could and the responsibilities he should do, and to fight against Japanese intelligence forces to the greatest extent, and strive to eliminate all these hidden dangers before evacuating Nanjing to do his best.

After carefully studying the documents in his hand, Ning Zhiheng then leaned down from the seat and closed his eyes and pondered.

This document is a monitoring record provided by the Telecommunications Department. The Telecommunications Department of the Military Intelligence Investigation Department is by far the most advanced telecommunications department in China. It can monitor signals and radio waves of various radio stations in all urban areas of Nanjing City and record data at any time for reference.

As the capital of the Republic of China, Nanjing City has many departments, many merchants, military and commercial radio stations, and there are too many to count, which is very troublesome to manage. Just monitoring the radio waves is a difficult task.

However, this situation has been alleviated with the further expansion of the Military Intelligence Investigation Office. The staff is most concerned about the telecommunications department. As early as a few years ago, outstanding mathematicians and telecommunications talents were recruited to form a deciphering team. The expansion a few months ago even purchased a large number of advanced telecommunications equipment, and the telecommunications department also doubled, so the control of radio stations in Nanjing has greatly increased.

In the following years, with the continuous investment, the level of the telecommunications department of the Military Intelligence Investigation Office developed rapidly and quickly surpassed Japan. This made many outstanding achievements in the late period of the Anti-Japanese War, including the contribution of many encrypted cryptobooks seized by Ning Zhiheng.

This record clearly shows that the frequency and method of sending the four radio waves that suddenly increased in the four regions of Nanjing urban area are the old radio stations that have disappeared for three months. From the perspective of time, they are indeed the most suspicious target.

But this is what the telecommunications department can do. They cannot determine their specific location, and the time for sending these radio waves to be too short and the monitoring time is too short to detect its rules.

In addition, Nanjing has a population of one million and a small urban area with tens of thousands of people at will, which greatly increases the difficulty of detecting work and the difficulty. In a short period of time, Zhao Ziliang was helpless and simply threw it to Ning Zhiheng.

Ning Zhiheng opened his eyes, picked up the phone and called Yu Cheng from the intelligence department.

"Old Yu, are you free now? Okay, come to me!"

Yu Cheng naturally did not dare to neglect Ning Zhiheng's phone number. In the Military Intelligence Investigation Office, except for a few senior executives, Ning Zhiheng, the tough character, is the most difficult to mess with. Ning Zhiheng's hideous face suddenly made Yu Cheng, who was at the scene, feel scared when he remembered it.

Soon, Yu Cheng came to Ning Zhiheng's office.

"Zhiheng, are you looking for me if you have something to do?" Yu Cheng asked, with a smile on his face when he entered the door.

Ning Zhiheng got up and asked him to sit on the sofa, and then handed the documents in his hand to him.

Yu Cheng quickly opened the file and read it carefully, then asked Ning Zhiheng: "This is the monitoring record of radio waves. What do you want to know? I know everything!"

Ning Zhiheng asked: "The Telecommunications Department mentioned in the document that the frequency and techniques of one of the radio waves were very familiar. At that time, it was a case that your intelligence department was handling. The target you were chasing was this radio wave frequency.

It was near Zhonghua Gate in the south of the city, but it was left unresolved. The radio wave disappeared for a while and appeared again. The location was in the area of ​​Heilang District in the North City District. It disappeared again three months ago, and now it suddenly appears again, and the location has also become near the Pigment Square."

Speaking of this, Ning Zhiheng looked at Yu Cheng and asked in a faint tone: "It is stated on the record that this case is the one you are responsible for. Can you tell me the case?"

Only then did Yu Cheng realize why Ning Zhiheng came to him. It turned out that he was going to ask about this matter. He couldn't help but smile bitterly and told him everything.

It turned out that in April last year, the intelligence department discovered a suspicious person. They continued to monitor for a while with the idea of ​​catching big fish with a long line. Just when the other party was about to go to the dead mailbox to place intelligence, they followed him to the near Zhonghua Gate.

However, the other party was very cautious. At the critical moment, the tracking personnel missed their whereabouts and was discovered by the other party, so they suddenly ran away. Under the pursuit, the suspicious person was shot dead, and the clues were cut off.

However, intelligence classes are not vegetarians. After analysis, it is believed that the online entry is hidden near Zhonghuamen, but the area of ​​Zhonghuamen is too large and densely populated, so the target cannot be determined.

They judged that this online might be a carrier pigeon, that is, the leader of the intelligence team who controls the radio station, so they transferred the telecommunications department to guard the Zhonghuamen District and monitor day and night.

Because at that time, the Military Intelligence Investigation Office was helpless against Japanese spies, and it was rare to find a clue this time. Gu Zhengqi issued a death order and had to work hard to solve the case. Therefore, Yu Cheng, with a large number of personnel and telecommunications department personnel, squatting for two months, spending a great price, and finally mastered the rules of this radio wave, found a more specific location, and narrowed the target range to the vicinity of the ringing lane in the Zhonghuamen District.

That night, when they were about to send a report from each other again, they suddenly searched for Xiangling Lane, and they thought they would get all the stolen goods.

The radio signal suddenly disappeared that night. Yu Cheng had to continue the search as planned, searching the entire 58 households in the ringing Lane. Almost every household searched every inch by inch, but found nothing.

The operation that took two months and consumed a lot of manpower and material resources was ultimately failed. In this way, the University of Information Science and Technology was disappointed. As the one who carried out this task, Yu Cheng was naturally in a mess and there was no further information.

Ning Zhiheng heard this and thought for a while and asked, "In other words, this pigeon should be a resident of Xinling Lane. He just gave up sending the newspaper on the day he sent the newspaper. Will he notice your investigation?"

Yu Cheng spread his hands and said helplessly: "I don't know this! Maybe he discovered our actions. According to the radio wave rules I monitored before, there will definitely be a report that night. We judged that it was a security signal from the Japanese spy team. It was sent once every ten days, and every time it was around 11 o'clock in the night.

The arrest at this time can ensure the location where the Japanese spy was sending the newspaper at that time, that is, he must have been in the ringing alley at that time, but if he did not send the newspaper that day, we cannot determine whether the target was in the ringing alley at that time.

In fact, the search results were the same, and nothing was found."

Ning Zhiheng asked again: "Didn't the personnel in the ringing alley be investigated?"

"I have investigated it, but there is no basis for it, and there is no screening conditions. There are 58 households in the entire Xiangling Lane and more than 200 people. I don't have so much energy to investigate and track it. This is simply impossible."

What Yu Cheng said is indeed the truth. It takes a lot of manpower and material resources to track and investigate more than 200 people in one go, which is simply a fantasy.

"At that time, was all the population in Ringling Lane present? Is there anyone leaving that night?" Ning Zhiheng asked.

"All the people are here, and we took the household registration police to search the house. It was late at night, and all the people were resting in their own homes." Yu Cheng replied.

Ning Zhiheng thought about it carefully and still felt that the other party should be a resident in the ringing alley. He just noticed the operation of the intelligence department in advance and gave up sending the newspaper on the same day. At the same time, he transferred the radio station, prepared all preparations for the search, and avoided this crisis.

Ning Zhiheng asked again: "It seems that the other party left Xiangling Lane and then came to the neighborhood of Heilang District. Do you think about starting from this aspect? Go and investigate, among the more than 200 people in Xiangling Lane, are there any people who moved to Heilang District later?"

Yu Cheng smiled bitterly and said, "Zhiheng, Nanjing City is the capital of the country, there are too many migrant populations. Many people do not have Nanjing household registration, but are temporarily registered and disappear afterwards. Especially, they only need to forge a certificate, ．＞

This chapter is not finished, click on the next page to continue

If you change your identity, you can rent a house temporarily. This is not difficult for Japanese spies. It is too difficult for us to find someone. It is like finding a needle in a haystack!”

____________
Chapter completed!