Outside a courtyard, Gui Youguang hid in the alley with the spies from the operation team, secretly watching the movements in the courtyard. When he saw a car driving out, his eyes lit up.

It was Liu Gui's car. This guy was Xu Enzeng's confidant. He went out as soon as he came back. Maybe he went to the file storage point. He called a spy who was good at stalking, and the two of them whispered.

"You are responsible for following Liu Gui and know how to do it."

"Know, secretly track and monitor, and find a place to stay."

"Go."

Gui Youguang patted his men's shoulders, and then focused on the cars of other people who went out, especially those spies who drove alone, who were likely to review the files.

He never expected that Xu Enzeng would use the radio to contact the people at the file storage point. After all, the radio is not stable and the electronic tube is easily damaged. Once it is broken, it will cost a lot of money to buy it.

Moreover, most people subconsciously believe that radio stations are tools for long-distance communication. Xu Enzeng can also use the blind spots of his thinking. He is worthy of being a foreigner. There are some tricks to be serious about it.

However, Gui Youguang could not think of it, but it does not mean that others could not think of it.

When Zuo Chong judged that there was a traitor and found out that Xu Enzeng was so cautious, he immediately thought of the radio station. What is safer than not meeting in person and only using radio waves?

It was like when he was in contact with the underground party himself.

So when Angelica Youguang was doing useless work, Zuo Chong walked into the Telecommunications Department, beside him was the smiling Telecommunications Department chief. Now facing Zuo Chong, this person has lost his rebelliousness when selling radio stations.

"Oh, today is such a distinguished guest. Why did Section Chief Zuo have time to come? You are all dead. Come and make a cup of good tea for Section Chief Zuo that I brought back from Hangzhou. Go quickly."

Zuo Chong looked at the villain's face and didn't care. He said happily: "Aren't I investigating the case? Let's see if you have any new discoveries here, what's going on in Sanpailou these two days."

The head of the telecommunications section was originally a mechanical worker, but he was not very familiar with telecommunications. When he heard Zuo Chong's inquiry, he quickly called a technician who was responsible for telecommunications to report the specific situation to Zuo Chong.

The technician first saw the legendary smiley tiger, and his face turned pale, and he stuttered: "Report to Section Chief Zuo, there is no unknown radio signal near Sanpailou, we have tried our best."

"It's really useless things that can't be used on the table."

The head of the telecommunications section was so angry that he was half angry: "Did you have a good detective? Section Chief Zuo is the detective expert in our department. He said that if there is a radio station in Sanpailou, there must be a radio station. Please let me detect it carefully."

This is a bit unreasonable. There is no unknown radio activity. No matter how carefully they detect it, they will never find it. The technicians lowered their heads in grievance and received the baptism of saliva.

"Don't blame him, this case is a bit special." Zuo Chong smiled and persuaded the telecommunications section chief, and asked the technician again: "Did you record all the activities of Jinling City Radio?"

"Yes."

The technician held his chest straight: "Whether it is a registered government radio station or a private commercial radio station, we have made records, but there is only the boot time and approximate location.

This also depends on the new electronic detection equipment borrowed by Section Chief Zuo. Otherwise, we can only determine the time and general direction of starting the machine. Everyone says that you and our Section Chief are both the most skilled officers.”

Otherwise, it would be amazing if the honest man flattered him or not. His words made people feel comfortable to listen to. Zuo Chong and the Chief of Telecommunications both smiled, and the Chief of Telecommunications almost made a sound.

"The Telecommunications Department has done a good job." Zuo Chong praised against his will, and then said without hesitation: "The Intelligence Department has discovered some new clues and showed me the electronic detection records within three months."

"It all depends on the leader of the seat." The telecommunications section chief gave Lao Dai a flatterer from a distance, and then waved to the technician: "You can bring a few people to send the telecommunication record to the office of Chief Zuo."

Zuo Chong did not stop him. This arrangement was great, but it was indeed inconvenient for him to be here. He exchanged perfunctory greetings with the telecommunications chief. When he saw several spies coming back with records, he immediately said goodbye.

He smiled and said, "Thank you, Corey still has some work to deal with, so I won't bother you much today. I'll go to my place when I have time. Although I don't have good tea from Hangzhou, I have a can of good coffee beans."

"No problem. If you have any problems in the future, just call him on the phone. Don't have to go there in such a hassle. Don't worry, once a strange radio station appears near Sanpailou, I will notify you immediately."

The head of the telecommunications section bent over slightly, stood on the left and right side and walked out of the door enthusiastically, treating him completely as a boss, completely ignoring both of them were section-level cadres.

Zuo Chong smiled and said, "Don't look like this. Although the seat asked me to temporarily preside over the work in the office, in the final analysis, our positions are the same, you are too polite."

“Different, different.”

The head of the telecommunications section smiled flatteringly: "You are the major now, and this is the only one in the department, and of course you are the chief. We all say that you will be the second person in our department to be promoted to general in the future."

Bah, you are the general.

Zuo Chong felt that the spies nowadays were sarcastic. Isn’t this a curse for me to enter the Gongdelin early? But I couldn’t say anything when I faced a smile, so I immediately laughed and left.

Taking people back to the intelligence department, Zuo Chong asked the telecommunications department's spies to put down their things, and then greeted He Yijun, asking her not to let people in and disturb her, so she plunged into the office.

Not for confidentiality.

Instead, he has a lot of data to process, with millions of people inside and outside Jinling City, many commercial institutions such as banks, trading companies, newspapers and magazines, and these places have radio stations.

This has caused a lot of signals from Jinling Radio. If you don’t hurry up and watch it, an intelligence chief is so concerned about the radio station, it will easily arouse the suspicion of others, such as Lao Dai.

Zuo Chong first checked the recent records, the focus was on the record of sending telegrams to the outside world after Liu Gui returned to the agents' headquarters, and was afraid that the Telecommunications Department had not yet come to record today's detection.

Fortunately, the technician of the Telecommunications Technology Department was very stable. He soon discovered a message sent today, with 25 messages in just two hours, which shows how busy the business has been in one place recently.

"Only, it's not this."

"The frequency of the business is not this."

"No, it's still the frequency of the business,"

The left midsection quickly ruled out some records that were obviously not secret communications, but in the end, there were still 7 left. At the same time, the time for these 7 telegrams was sent throughout these two hours.

There are too many clues.

He originally wanted to find a sending time and then find a radio station with telegram records at the same time. He could find something by comparison. Now it seems that it is not that easy, but it is not impossible.

If you can't use a simple method, then use a stupid method. This is why he has needed three months of electronic investigation records. In addition to covering up, the more data, the more accurate the information he digs from it.

Zuo Chong calmly wrote down the sending time of these seven telegrams, and marked out the radio stations that had sent and received records at the same time. After all, he finished all of them. The number of radio stations made his hair numb.

There are 92 radio stations associated with these 7 reports. For the first time, he felt that wireless devices should be managed. If the Japanese spy radio station is also hidden inside, he would have to find the Year of the Monkey and Horse Month.

Zuo Chong classified 92 radio stations and excluded all known government radio stations. Xu Enzeng could not place people at the agent headquarters, and he would not arrange people to other agencies.

If he wants to protect Wang Lizhong, he must first ensure that the least people know about this matter. If he is placed in the Fruit Party organs, it will take less than half a day before this news will be spread all over the sky in Jinling.

Compared with those party and state officials, Song Minghao can be regarded as tight-lipped.

At the same time, government radio stations that can be marked by the Telecommunications Department are all big yamen. The agent headquarters is not as big as that, and the other party wants to cooperate with the intelligence operations. These two points determine that these radio stations have no investigation value.

At this point, Zuo Chong had 51 suspicious radio stations left. Judging from the detection records, it seems that there is no intelligence value in the city, unless there are other references.

"Old Zhang, Lao Xie, Sister Gu, I'm here to see you."

Zuo Zhong recited a silent sentence in his heart and began to compare and collide with the time of the Jishi Pharmacy explosion. Any radio stations that appeared before the explosion will be excluded.

Xu Enzeng only had time to arrange for the traitor Wang Lizhong to identify the underground party of Jinling after Lao Zhang and others were arrested or sacrificed. He set the time for the explosion after the purpose of more accuracy.

The comparison process is not easy. After several months and countless records, you have to start from scratch if you are not careful. Zuo Chong looked at the windowsill, turned on the desk lamp, lowered his head and focused on identifying it.

One, two, three...

From evening to late night, and from late night to early morning, the office was filled with the smell of smoke. The cigarette butts in the ashtray piled up into a hill, and only a thin piece of the original thick detection record was left.

Zuo Chong took out the last cigarette, threw the cigarette box into the trash can, lit it, stretched, looked at the table, and after making the last picture, the traitor's tail should be exposed.

Thinking of this, his eyes were filled with coldness. It was Wang Lizhong who caused such great losses to the underground party. After finding this person, he wanted to see if the other party's heart was dark.

Otherwise, how could Wang Lizhong do such a thing, betray his comrades and persecut those brothers who once fought side by side with him. It is a sin to live one more day in the world.

Finally, before the spy started working, Zuo Chong narrowed down 51 radio stations to 3. He smiled as he looked at the records of the three radio stations. Wang Lizhong, we are about to meet, so wait.
Chapter completed!