When Bai Yuan's interrogation came out, Shen Hanwen was not in Shanghai.

After capturing the two Japanese spies, the other two teams returned to Nanjing, and he stayed in Shanghai to continue to spy on Yan Kuian to see if he could find new Japanese spies around him.

Now Shen Hanwen is full of energy, Yan Kuian is surrounded by him with eyeliner, he doesn't stare at Yan Kuian, only stares at the surroundings, and is ready to stage a good show of praying mantis catching cicadas and yellow finches.

The next morning, the loach hurried back to report to work.

"Team leader, after a whole day of investigation yesterday, it was found that thirteen of Zhang Bai's customers had purchased newspapers, and there were also two of Zhang Bai's regular customers in the companies and units that ordered newspapers, with a total of fifteen people."

"I arranged for someone to verify whether other customers who didn't see it had bought newspapers, and yesterday it was determined that forty-seven of Zhang Bai's old customers did not have the habit of buying newspapers, and these people can basically be ruled out."

"Okay, let's investigate these fifteen people first, and don't exclude any of them for the time being."

Chu Lingyun nodded and said, there is a Chinese in Zhang Bai's downline, the investigation method of the Japanese spy is useless to him, his past and present can be true.

In this case, it is true that all suspects cannot be ruled out.

"Yes, Team Leader."

The loach was a little puzzled, but he didn't ask much, and he would investigate how he wanted, and the obedient loach did a good job.

For two days in a row, the whole team of Loach was busy, and Chu Lingyun also transferred ten people from Shen Hanwen's team to him to help him verify it as soon as possible.

It wasn't until the evening that the loach dragged his tired body to report to Chu Lingyun: "Team leader, it's been verified clearly, the actual number of people who have bought newspapers is seventeen, and two people didn't buy them at the newsstand we were staring at. ”

"Where did these two buy the newspaper?" Chu Lingyun immediately asked.

Ordinary people buy newspapers nearby, and they go far away to buy newspapers, which is a suspicion in itself.

"One was bought at work, the other was bought when I went to the park, and I had people secretly search their homes and found that only one of them had more newspapers at home."

If there are many newspapers, it means that they are often purchased, and the suspicion is greater, but the suspicion cannot be ruled out if there are few newspapers.

Maybe he sold it, or he threw it away.

In short, before Zhang Bai's four offline are determined, no one will be excluded.

"This is the detailed information of seventeen people, and I have arranged for someone to investigate them, including the past, their hometown, and everything they are now."

Loach knows how to check the Japanese spy, and after having the list, he immediately began to investigate, and now he has checked the recent situation of several people.

"Good job, go back and rest early, let me put the list here."

Chu Lingyun nodded, seventeen suspects, the number is not much, but it is also a lot.

And those four people are most likely hidden among these seventeen people, in this way, the proportion is actually very high, and it is not difficult for them to find the Japanese spy.

The difficult thing is how to find out all the Japanese spies.

Early in the morning of the third day, Chu Lingyun came to the temporary office of Loach, which was still behind Deyuan Pond, and the monitoring had stopped, but the investigation of Zhang Bai's customers had to continue, this belonged to the center of Zhang Bai's customers, and Loach simply put the office here.

"Team Leader."

As soon as Chu Lingyun came in, the people inside hurriedly got up.

The house was originally full, but now there are only four people left, who have to guard the phone, as well as record and sort out the information investigated outside.

Not even the loaches, including the loaches, are here now.

"Show me the information you've already investigated."

The information soon arrived in Chu Lingyun's hands, don't look at it for a long time, there is already a thick book, all the information investigated will be summarized here first, and the loaches will be sorted out and archived in the end, and then handed over to Chu Lingyun.

The first information is the customer of Zhang Bai Theater.

His name is Zhao Pinsong, and he mainly sings Hongshan opera, and he is the pillar of Hongshan opera in their theater.

Hongshan Opera originates from the eastern part of AH, which is very close to Nanjing.

Hongshan opera is very marketable in Nanjing, Zhao Pinsong is forty years old, he has been singing for more than 30 years, just look at his information, he is innocent, and he doesn't look like a spy at all.

Zhao Pinsong's family was poor, he was sold to the theater when he was three years old, and he has been living in the theater since then, until he learned the skills and became the leading role in the house, his life improved.

Such a background is difficult for the Japanese to disguise, if it were not for Kawa Benlang suddenly confessing that there were Chinese in Zhang Bai's line, Zhao Pinsong could directly rule it out.

There is a Chinese among the Japanese spies, which really gives Chu Lingyun a headache.

The status of the opera is not high in this era, but many dignitaries like to listen to the opera, and sometimes invite the opera troupe to sing at home, which gives the opera an opportunity to explore intelligence.

As long as there is a little suspicion, Chu Lingyun will not give up the investigation.

Zhao Pinsong's information is very simple, he has been in the theater, and his past can be easily checked and confirmed to be him.

didn't see any problems, Chu Lingyun continued to look through the next information.

These two documents belong to a teacher who works at Nanjing Normal University.

In this era, university teachers have very high salaries and good conditions, and in this era of illiteracy, it is very respectable to be able to become a university teacher.

His name is Si Lihua, 32 years old, his hometown is in Beiping, and he is from the city.

Si Lihua has been in Nanjing for six years, and in addition to teaching, he also took some private tutoring jobs and made up lessons for some children from privileged families.

Japanese agents have a precedent of lurking as teachers, and Du Juan was a middle school teacher when he was in Wuhan.

The third is named Du Fang, a local, thirty years old.

Usually a local is the least suspicious, but he bought a newspaper outside yesterday and has a lot of newspapers at home.

Du Fang works in a bank, and there are nearly 20 pieces of information about Nanjing's financial system among the more than 100 pieces of information, and Du Fang's suspicion is also very great.

After reading them one by one and reading all the information that had been found, Chu Lingyun immediately turned out Si Lihua's information again.

Among the seventeen people at present, Chu Lingyun has the greatest suspicion of him.

Kawamoto explained that he came to Nanjing five years ago, and there was only one intelligence agent later than him, and two of them arrived in Nanjing six years ago.

Gu Cheng is one of them, his identity has been confirmed, and among the seventeen people, only Si Lihua came to Nanjing six years ago.

"Team leader, you're here."

Loach got the news of Chu Lingyun's arrival from his subordinates and hurriedly ran back.

"How much has Si Lihua's investigation been conducted?"

Loach immediately replied: "Si Lihua, I have already sent two people to monitor, because his hometown is Beiping, I sent someone to investigate yesterday, and now that the person has not arrived, I estimate that there will be news back tomorrow at the latest." ”

Investigating suspects, especially if this is not local, the loaches will send people to their local area to verify, which is the basic direction of investigation.