"Luo Qingshan, we have seen it. The last time you took someone to General Ding Chao's house to arrest Shiro Asakusa, when you reported it, right?" Lu Shan smiled at Luo Qingshan, who was a little uneasy.

Luo Qingshan trembled with excitement: "Mr. Lu still remembers me?"

"Of course, you are a famous hero in our Dongzong. How could I not remember it?" Lu Shan smiled.

Although he was about the same age, and even Lu Shan was a few years younger than Luo Qingshan, in front of Lu Shan, Luo Qingshan felt that the hand that patted his shoulder was heavier and hotter than his father.

"Thank you, Mr. Lu..."

"Thank me, I didn't say I wanted to treat you to a meal?" Lu Shan said with a laugh.

Immediately, Luo Qingshan felt embarrassed and blushed.

"Just kidding, Secretary Feng, ordered the kitchen to add two dishes. I will invite Luo Qingshan and Minister Wang to dinner today at noon!" Lu Shan turned his head and ordered Feng Yun.

"Okay, Mr. Lu!" Feng Yun stood up, nodded at Lu Shan, and went to the kitchen to convey orders.

"Make, monk, make tea!"

"Thank you, Mr. Lu!"

"Recently, Japanese spies in Harbin have been very frequent. We have cracked down on a group of people when we enter the city and arrested many people. However, the Japanese are unwilling to accept failure. They will inevitably send people to continue infiltration and contact those lost Japanese spies. Your anti-special task is very arduous. You cannot relax or paralyze your mind for a long time!" Lu Shan sat down and said.

"Don't worry, Mr. Lu, we have a clear understanding of the cunning and cruelty of Japanese spies. All personnel from the security department always keep a clear mind!" Wang Heshou said solemnly.

"We must always deal with ideological issues, but our cadres and comrades should also pay attention to the life issues, care more and understand more. It is not possible to sit in the office all day long to issue orders!" Lu Shan said.

"Yes, yes, Mr. Lu is very right. Come from the masses and go to the masses. Only by deeply understanding and mobilizing the masses can we gain the support of the vast majority of the people and be invincible!" Wang Heshou said.

"Minister Wang has realized that it is very good. Anti-special work and mobilizing the masses is a very advantageous magic weapon. As long as the masses support, spies and traitors will have nowhere to hide!" Lu Shan said affirmatively.

"We are progressing, and the enemy will not stand still, so always keep a modest and learning attitude. This is the top priority of our anti-special work. The world is developing, and scientific and technological means will become more and more important. You should also learn some scientific knowledge in your daily work and understand the enemy, which means you are making progress!" Lu Shan said.

"Mr. Lu is right. Just like this time, we met a very tricky opponent. He kept changing the place of his post. He played hide-and-seek with us, and we still don't know where he is." Luo Qingshan said.

"How long will it take for the enemy station to send and receive reports?" Lu Shan asked.

"If it is timely delivery and reception, ten minutes will be enough, but if you need to contact continuously, it will usually take half an hour to get over this time. You must wait for the next contact or change the location!" Luo Qingshan said.

"How long can our radio direction finding vehicle determine the location of the radio?" Lu Shan asked a technical question.

"If the enemy always publishes at the same location, maybe after a few reports, we will be locked in the same area. But if the reports are constantly changed and the time for the sending of reports is very short, it will be very difficult."

"Have you ever thought about using technical means to shorten the detection time and range?" Lu Shan asked.

"This, Mr. Lu, we don't have any experts in this field at present. We can only use equipment and repair it is difficult. So why are we talking about development?" Wang Heshou was embarrassed.

"Is it possible to find experts in this field? We invite people to come and study, and we provide all the conveniences?"

"Talents in radio communication are special talents, and all countries have very tight control, especially in this area, which is even harder to find. Therefore, it is difficult at present!" Wang Heshou said.

"As long as we can find it, it can cost no matter how much. Also, we can't always rely on others. We must have our own experts. I plan to send people to Peking, Shanghai and other places. We are going to build Harbin Institute of Technology and hire famous scholars and professors to teach in this name!" Lu Shan said.

"What do you mean is that we are looking for special talents in the name of recruiting people?" Wang Heshou said.

"This is just a path, it doesn't matter if we can't find it. The key is whether we will go or not, but be careful of the Japanese, their noses are more flexible than dogs."

“Yes, yes!”

"Let's talk about this for now. Technical methods are not available yet. We can only find ways from other aspects. Mobilizing the people is a way, and we also think of ways from ourselves, such as strengthening learning and training. If we have more abilities, will the enemy be relatively weak?"

"Mr. Lu is right. If our team members let them go to the battlefield, they would be a good player. But if they were asked to follow them, they might not be able to act." Luo Qingshan said.

"About Baiwu Qingji, have you made any progress?"

"There is not much progress at the moment, but there is a little bit!" Luo Qingshan spoke boldly with the encouragement of Wang Heshou's eyes.

"Tell me!" Lu Shan tore open a box of cigarettes, threw one to Wang Heshou and Luo Qingshan respectively, and then cut a match himself and lit it for the two of them!

"Based on our investigations these days, we think Baiwu Qingji may be in the southern area of ​​Daowa. We found several duplicate radio signal source locations near the southern area." Luo Qingshan Dao.

"Map!" Lu Shan gave Yang Shangwu a look.

Yang Shangwu immediately understood and took a street topographic map of the outside area of ​​Harbin Street and spread it on the coffee table in front of the three of them!

"Mr. Lu, look, the points where the signal sources we found were particularly strong are located in these locations, all around the southern area."

"There is a large farmers' market here, which is close to the Binjiang Administrative Center. There are many public facilities, schools, hospitals and shops nearby. The population is quite dense. You can draw at least 50,000 or 60,000 people in this circle. This is almost like finding a needle in a haystack!" Lu Shan frowned slightly.

"Mr. Lu, we failed you..."

"Old Wang, how can you say that? You have no idea. As a leader, you must understand the truth and be sympathetic. Qingshan and the others are really working hard. Our enemies are too cunning, which is no wonder!" Lu Shan said hurriedly.

"What Mr. Lu said is that I am also anxious!"

"You can't be impatient to catch spies. If you are impatient, you can easily make mistakes and easily fall into the trap of the enemy!" Lu Shan's experience is a story. Before he traveled through time, he did this, and there were many bloody lessons in it.

"The population here is quite responsible. There are many ethnic groups, so it is difficult to investigate and it is easy to alarm the enemy." Lu Shan said.

"Mr. Lu is right. If we conduct large-scale investigations, it will easily shock our opponents. If we scare him to the point of being in a hurry, then we will not be able to find him in a short time!" Luo Qingshan said.

"Comrade Qingshan said it well. We just occupied Harbin. The people's hearts were decided. If a large-scale investigation was carried out, people would be panic and easily exploit loopholes by the enemy. It is not a good thing for us!" Lu Shan said, "And, except for shocking the enemy, there is no substantial effect. We will not do thankless things!"

Wang Heshou and Luo Qingshan both nodded.

"How often is the activity of this radio station? Can it be confirmed that it is the same person?" Lu Shan continued to ask.

"At the beginning, contacting is at most once a day, most of which are at 12 noon or 10 o'clock in the night. This process lasts about a week, and contacting is very frequent in the past week, at least twice a day, sometimes three or four times." Luo Qingshan said.

"So, this radio station is very active!" Lu Shan nodded, "Where is the sender?"

"This is certain of the same person's technique!"

"Is it Baiwu Qingji?" Lu Shan asked afterwards.

"We have let the captured Japanese radio operators of Harbin Secret Service hear it, and they confirmed that it was Baiwu Qingji's technique." Luo Qingshan said.

"It seems that you have made no progress. At least you have confirmed that the person we are looking for is Baiwu Qingji!" Lu Shan said.

"Mr. Lu, Baiwu Qingji contacted Changchun so frequently. It is obvious that Changchun urgently needs our information, otherwise it will be easy to be exposed if he does this!" Wang Heshou analyzed.

"Old Wang's analysis makes sense. Baiwu Qingji is a telecommunications expert and an intelligence expert. He will not misunderstand this unless he looks down on us and thinks we are unable to find him!" Lu Shan nodded and said.

"Haowu Qingji is very cautious in character, but this possibility is not ruled out!" Luo Qingshan said, "After my radio direction finding car was disguised, it would be impossible for anyone who is not a professional to see."

"In other words, Baiwu Qingji judged that we were not able to track his radio station, so why did he frequently move the launch position?" Lu Shan asked back.

"This may be his usual style. Although we judged that we were not able to find him, we were not completely sure. This was a way to protect ourselves!" Luo Qingshan was stunned for a moment and replied.

"This possibility is not ruled out. Baiwu Qingji is an expert in deciphering and eavesdropping of secret codes. He has been deciphering and eavesdropping of Soviet communication codes. He should have such eavesdropping equipment in his hands. Therefore, the direction of your investigation should also include this aspect, especially the external telephone contact of the headquarters, especially the confidential telephone line!" Lu Shan reminded.

Luo Qingshan was shocked and his face looked a little embarrassed. He didn't expect that he would just keep an eye on the radio signal, but ignored what his opponent did and what he was good at?

"Mr. Lu, we..."

"It doesn't matter, the lessons learned cannot be found in one day. No one was born to be an intelligence expert!" Lu Shan said.

"After going back, we will organize the investigation force to conduct investigations immediately!" Wang Heshou said.

"Don't make a big fuss, do you understand?" Lu Shan reminded.

"Don't worry, Mr. Lu, we will notify the telephone bureau and send someone to check the lines and eliminate hidden dangers. In the name of eliminating hidden dangers, we will conduct a thorough investigation of the telephone lines in the entire Harbin city!" Wang Heshou said immediately. (To be continued...)
Chapter completed!