Wheat tea? This is indeed relatively rare. It is not as popular as in later generations. Wheat tea is only circulated in the north of China at this time. It originated in the northeastern region and gradually spread to Guanzhong. There are very few people drinking this kind of tea in the southern region. This is also the case after the war, a large number of people from the north flocked to Chongqing, and only then did Chongqing start drinking Wheat tea.

Ji Yongyan's accent is from the northerners. I think I must have been in the north for a long time. It is not surprising that he has this habit of drinking wheat tea. Moreover, the Japanese also have a special liking for wheat tea, which further confirms Ji Yongyan's identity.

Ning Zhiheng carefully considered this clue in his mind. He felt that this was an opportunity to take advantage of. Any information different from everyone else could become a clue to tracking.

Ji Yongyan should be in Yuzhong District, or even in the neighborhood near Yanbei Road. He has the habit of drinking wheat tea, so he may go to nearby tea shops to buy wheat tea. However, in Chongqing, most tea shops should operate green tea and flower tea, and even oolong tea. As a relatively rare tea type, there should not be many tea shops with this source of supply. This means that Ji Yongyan does not have many purchasing channels, so can he be found based on this clue?

Ning Zhiheng then asked Luo Gaoyi: "Do you know where Ji Yongyan's wheat tea was purchased?"

Luo Gaoyi shook his head and said, "I have never asked. I usually like to drink lighter flower tea, but the wheat tea is still a bit heavy. I just tasted it a few times and don't know much about these."

Ning Zhiheng nodded, asked Luo Gaoyi some questions, and then he ordered: "Mr. Luo, the materials you provided this time are very useful, but this is not enough. If you remember other things about Ji Yongyan in the future, you can call me at any time, or go to the Operations Department 2 of the Military Affairs Bureau to find me. My surname is Ning, Ning Zhiheng."

Luo Gaoyi dared not refuse, so he nodded and agreed. After Ning Zhiheng finished speaking, he wrote his name, office phone number and operation address on the recording paper and tore it off.

He knew very well that the psychology of ordinary people is that it is better to have less than more things. He only wanted to live a safe life and it was difficult to take the initiative to explain the situation unless it was to make a profit.

So Ning Zhiheng took out the banknotes from his pocket, took out a few large dollars, and handed them to Luo Gaoyi along with the recording paper.

"I dare not take it for this..."

Luo Gaoyi was at a loss for a moment and refused repeatedly, not daring to reach out to take the call.

Ning Zhiheng didn't say much, stuffed it into his arms and said in a deep voice: "Please pay more attention to Ji Yongyan's affairs in the future. You are the person who is the most familiar with Ji Yongyan. If you can help us find him, you will also make contributions to the country. I will reward you with another 500 US dollars. This money is enough to allow your whole family to live a good life in Chongqing!"

But it’s not that Ning Zhiheng is unwilling to give more, but that giving more people like Luo Gaoyi is not a good thing.

"Don't worry, I will be careful. If there is any news, I will notify you!" Luo Gaoyi's eyes opened and he couldn't help but nodded repeatedly to agree.

Ning Zhiheng was right. Five hundred dollars helped him and his family so much that he could not refuse. Besides, since Ji Yongyan was a Japanese spy, he would not have the same affection as before. Luo Gaoyi also hated the Japanese, otherwise he would not have stayed away from his hometown and fled to Chongqing to seek life.

Ning Zhiheng got up and left the room. It was already six o'clock in the evening. The tenant of the house rushed back. He saw the police and the operation team members in the room. He was so scared that he hugged aside and did not dare to say anything.

Ning Zhiheng took out another dollar bill from his pocket and handed it to Cheng Liugu, who was beside him, and said, "I'm sorry, I'll go to fix the door lock."

Cheng Liugu did not expect that these vicious guys would pay her money, so he hurriedly agreed to the timid.

Ning Zhiheng walked out of the yard, waved Liu Datong and Chen Yanqing aside, and instructed: "There is a clue now. Ji Yongyan likes to drink tea very much, and only likes to drink wheat tea. This kind of tea is not common in Chongqing at present. You should take the current location as the center and ask in the surrounding tea shops to see which tea shops have the supply of wheat tea. Then take Ji Yongyan's photo to ask in turn to see if you will gain something?"

After saying that, Ning Zhiheng handed over Ji Yongyan's photo, and Liu Datong quickly took it over.

"Please rest assured when you are here. We will act overnight tonight and report the results to you tomorrow!"

Ning Zhiheng said again: "Okay, thank you for your hard work, but you still have to pay attention to the methods and tell the tea shop owners that you must pay attention to confidentiality and dare not to report it. You will be punished with the same crime as the Japanese spy. If you find this person, you will be rewarded!"

"yes!"

Ning Zhiheng explained clearly and ordered the team to be withdrawn. The group returned to Operation 2. At this time, Shao Wenguang, who had been waiting for a long time, sent a map of the city to Ning Zhiheng's office.

"Saturday, this is the latest version of the city map, but there are still many places that are not depicted, mainly because the city area changes too quickly."

Ning Zhiheng asked Shao Wenguang to help, and the two of them took off the old city map, hung the new map on the wall, clapped their hands, nodded and said, "Old Shao, there is a new situation now. I have focused my target on Xia Bin alone. His wife Song Anxian is also very suspicious, so you can withdraw the surveillance in the other two places and focus the surveillance force on Song Anxian. I need to know her every move."

When Shao Wenguang heard this, he nodded and took the order. He had great confidence in Ning Zhiheng. Since he could determine the target, Xia Bin must have a problem and the suspect in the leak case could be locked in.

He said excitedly: "You are still unique in your eyes. You can't find this traitor after staying in the headquarters for more than a month. You found it in just one day. It really opened the eye of Beiyi. If the headquarters knows this, you won't scare your chin, haha!"

Shao Wenguang was right, the progress of the case was indeed amazing. Yesterday afternoon, Bian Ze sent nine suspects to the Second Office of Operations and handed the case to Ning Zhiheng. It has only been twenty-seven or eight hours since Ning Zhiheng has eliminated other suspicions and locked up Xia Bin. The speed of this detection is indeed amazing, but I am afraid that Bian Ze would never have imagined it.

Ning Zhiheng smiled slightly and waved his hand and said, "I have only found this inner demon at the moment, but you also know the current situation. Finding a real traitor is just the simplest step. The difficulty is how to prove that he is a real traitor, otherwise no matter what aspects will be able to explain it."

Shao Wenguang knew that the background of these combat staff was very deep and the matter was more complicated than previous cases. He quickly said: "Is it too passive to just monitor Song Anxian? If this woman did not have follow-up actions, our time was limited, but we could not waste it with her. The Military Commission kept urging her very tightly."

Speaking of this, he thought about it and suggested: "Can you take tough measures against Song Anxian?"

Because the Military Control Bureau holds privileges, it has less worries when doing things. In this case, it basically captures people and uses methods. What situations can’t be obtained under the Three Woods?

The same is true for Shao Wenguang. Since he has set his target, he suggests to get the person directly.

Ning Zhiheng shook his head and said to Shao Wenguang: "It's too early to arrest people now. I'm already starting to investigate their online presence. When I catch them, I have personal and physical evidence, so they have nothing to say and no one can escape!"

"Catch them to go online?" Shao Wenguang was even more surprised. Ning Zhiheng's actions were too fast. In one day, he not only locked in the real target, but now he has begun to investigate the online. Only then did he realize that he had underestimated the director's methods and was really decisive!

"If what I expected is not bad, we will have a result tomorrow. If the progress goes well, you won't have to worry about it anymore. Just stop the Internet and catch people!"

At 9:00 the next morning, Liu Datong, who had been busy all night, came to see him again.

"Cuza, we have passed all the tea shops in Yuzhong District until now last night, but we have indeed found no trace of Ji Yongyan."

Liu Datong is the police chief, and his police officers are all locals. He is very familiar with the situation of the shops on the market. Last night, he personally led people to ask the owner of the tea shop, but was disappointed.

"Not found?" Ning Zhiheng asked in surprise.

A person's life habits are very difficult to correct for all years, and Ji Yongyan cannot be careful to this extent.

Liu Datong said with certainty: "There are 63 tea shops in Yuzhong District, and only 12 sell wheat tea. There are not many goods and not many people buy them. The owner of these tea shops should have an impression of them. I showed them the photos. Only one owner named Qianyuan Tea House recognized Ji Yongyan, but he said Ji Yongyan had not appeared again for several months."

"Did he really leave Yuzhong?" Ning Zhiheng was a little confused. He walked back and forth a few times in the room, but still didn't believe that Ji Yongyan would do this.

Xia Bin is an important pawn to enter China's highest military department. Such an insider with intelligence value is not confirmed to be exposed, the Japanese will never give up easily. Now Ji Yongyan will definitely observe in the dark and it is impossible to escape far away.

It must be because of some negligence. Ning Zhiheng frowned and quickly passed various information in his mind, trying to find out the missing points.

At this moment, the phone rang on the desk, Ning Zhiheng stepped forward and picked up the phone, but unexpectedly it was Luo Gaoyi's phone.

"Ning, Mr. Ning, I am Luo Gaoyi. I wonder if you still remember me?"

Ning Zhiheng couldn't help but feel happy when he received his call. He knew that Luo Gaoyi must have important news to tell him, and it seemed that his words yesterday had effect.

"Mr. Luo, of course I remember you. I have been waiting for your call. It seems that you have not disappointed me!"

Luo Gaoyi's voice sounded again: "I want to meet you and have a conversation in person. Don't you know if you have time?"

"Okay, I'll go find you..."

Half an hour later, Ning Zhiheng walked into a teahouse near Yanbei Road and soon saw Luo Gaoyi who had been waiting for a long time.
Chapter completed!