"Contact the Police Department and conduct investigations immediately. Humph, I just escaped by chance a few days ago, but I showed up again today. I am so brave."

Zuo Chong sneered and threw his fingerprints and photos on his desk, giving orders to Wu Chunyang.

In the early 20th century, as Western countries began to use fingerprints as identity authentication marks, the previous dynasty gradually introduced this technology.

In 1910, the previous dynasty established a "Fingerprint Library" to collect and store various fingerprints and use them for criminal investigation and identity identification.

In the seventh year of the Republic of China, fingerprint registration was included in the first modern population census of the Republic of China. After the National Government moved westward, fingerprint registration was a necessary content for household registration information.

As long as the suspect is not a black householder or comes to Chongqing from another place, the Military Control Commission can find the person through fingerprints.

However, screening out suspects from tens of thousands or even hundreds of thousands of people of appropriate age is a time-consuming and laborious project. The Military Commission has more important work to do, so just leave this matter to the person who asked for it.

The government has worked hard to raise them. These black skins cannot eat free food every day. In addition to bullying men and women, the other party also has to do some serious things.

Wu Chunyang understood Zuo Chong's meaning, picked up the fingerprint and turned around and prepared to leave. Unexpectedly, Zuo Chong opened his mouth and asked two more things.

"How did the second deceased investigate in disguised his identity? Also, has anyone seen Yuan Chuyu in the restaurant near Central University?"

At the meeting after the incident, Zuo Chong set up five investigation routes. The above two clues and finding more witnesses are all the same job.

"Second post, Old Wu is following these two things. I heard that they have found some clues." Wu Chunyang replied.

Zuo Chong waved his hand and asked him to leave first, then picked up the phone and notified Wu Jingzhong to come to the headquarters to see him. If he found out, he would not report it. How could this work?

I heard that the other party has been going to see the old classmate from Sun Yat-sen University recently. What is this special lady? He, Mr. Zuo, has become a spare tire?

An hour later, Wu Jingzhong, sweating profusely, stood at the desk and explained with a panic look on his face: "Second post, I want to verify the clues before reporting them to you, and it is definitely not intentionally concealed."

"Oh? Then how is the verification?" Zuo Chong looked at the other party and whined him hard.

Wu Jingzhong wiped away the sweat from his forehead, bent his waist to ninety degrees, and reported respectfully.

"Bizhi led people to investigate 44 factories, 3 wharfs, and 7 cargo warehouses near Shuangxigou. He asked more than 300 people and finally got a clue from one cargo warehouse.

The second-deceased person has a very similar appearance to a porter named Xu Banzi. He is from Shaanxi Province. He is 33 years old and is single. He claims that his wife and children died at the hands of Japanese.

We searched his residence and found an unfired Browning pistol bullet in the corner of the wall. The bottom of the bullet is marked on the same batch as the remaining shells at the pursuit site.

It was confirmed that there was indeed such a person in the local area, but he died of illness as early as the 18th year of the Republic of China. It was identified by the owner of the warehouse and confirmed that Xu Ban was the second deceased.

It is found that the other party's social relationship in Chongqing is very simple. His companions in the warehouse have never seen him have contact with strangers, but he lives alone, and no one knows what he did after get off work.

Investigators asked Xu's neighbors, and they all said that Xu's life was very difficult, which was consistent with the conclusion that the suspect's activities would be lacking."

After talking about the situation of the second deceased, Wu Jingzhong did not stop and continued to report the second thing.

"Brothers secretly asked about the hotel within a radius of three kilometers of the school. All the staff, including the guys, regular customers and bosses, had never seen Yuan Chuyu. As for other hotels in the city, it would take some time to investigate."

Zuo Chong fell into thinking. Yuan Chuyu told his roommate to go out for dinner, but no one had seen him in the hotel near the school. There were many possibilities for this matter, and there was no way to determine the specific reason.

Since that's the case, you might as well skip this question first and break the situation in another direction. Yuan Chuyu can't find it. What about the person he meets?

Now the Military Commission has many cards in its hands, in addition to the photos of the deceased No. 1 and No. 2, as well as photos of suspicious people appearing in Yuan’s house.

Although the last photo is not clear, as long as these cards are connected in a suitable place, they can still play the most effective role.

Zuo Zhong had an idea and looked up at Wu Jingzhong: "Old Wu, there has been progress in Chunyang. A suspect who escaped that day went to Yuan's house. Unfortunately, this guy escaped. Let's call him suspect No. 3 for the time being.

You give photos of the deceased, No. 1, No. 2 and No. 3 to the owners of the hotel, guys, regular customers, and they have never seen Yuan Chuyu, which does not mean they have never seen the suspect."

Wu Jingzhong reacted, generally speaking, the exposed intelligence personnel should evacuate immediately and at least enter a lurking state, but the No. 3 suspect did the opposite. What does this mean?

This shows that the enemy is likely to have only four people. After the pursuit battle, the other party is no longer available, so they can only risk sending suspect No. 3.

If Yuan Chuyu had been to the hotel on the day of his disappearance, the possibility of these four people was the greatest, Wu Jingzhong immediately surrendered and arranged for his subordinates to conduct a second round of inquiries. Anyway, it would be easy to try it without spending money.

Perhaps luck came, but not long after, the field staff reported a message that someone had met the No. 3 suspect in a hotel!

When Wu Jingzhong received the news, he immediately reported to Zuo Chong, and then rushed to the scene without stopping, questioning witnesses in the hotel kitchen.

"Your identity?"

"cook."

"Are you sure you've met the person we're looking for?"

"Yes, sir, I'm sure I'm not wrong."

"Tell me what happened at that time."

Wu Jingzhong took back the photos and simulated portraits, with a very serious expression. The chef opposite stammered and recalled when he saw him like this.

"That evening, the person in the photo came to the shop to order a table of food. I was worried that the guests would have any food, so I chatted with him before cooking. After five o'clock, the food was ready, and he left with the box."

Wu Jingzhong frowned and understood why no one had seen Yuan Chuyu. It turned out that the other party was not having a meal in a restaurant, so he asked another question.

"What did you say at that time?"

The chef racked his brains and thought for a while, and said tremblingly: "I asked him what he had to eat, did he return, and I said that if the food was cold, it would taste wrong. He said that his home is not far from the hotel, and it was just right to go back at 5:00 and the guests could eat it when they arrived, so it would not be in the way."

"Stop, he said in person that his home is not far from the hotel and the guests can eat when they arrive?" Wu Jingzhong grabbed a key message.

The chef nodded. He was sure that he remembered it correctly just a few days ago.

Wu Jingzhong paced back and forth in the house. On the day Yuan Chuyu disappeared, the lowest temperature in the mountain city was 9 degrees Celsius, and there was strong wind throughout the day. Even if there was a box to keep it in heat, the meal would be cold after more than 15 minutes.

Yuan Chuyu left school and delivered the letter, it was also around 5:10.

From the analysis of the sentence "Customers can eat when they arrive", the journey between Yuan Chuyu from the post office to the suspect No. 3 is within 15 minutes.

Based on the above information, at 5:15 that day, the suspect No. 3 took the food home, and Yuan Chuyu put the letter into the mailbox. Before 5:30, the two met at the same place for dinner. The food was still hot at that time and the timeline met.

How far can a normal person go in 15 minutes?

The answer is 800 to 1500 meters!

Regardless of Yuan Chuyu's pace, the No. 3 suspect cannot run quickly with a carrying case, as it will only attract unnecessary attention.

So would the other party leave in a mountain sedan chair, or it is impossible, it is too conspicuous to take a carriage in a mountain sedan chair with a carriage box.

As for cars...

Wu Jingzhong shook his head. If the other party had a car, there was no need to buy food near Central University. Wouldn't it be safer to go to other places?

In other words, the post office is 1.5 kilometers away from the suspect No. 3's placement site, and the hotel is not in the same direction.

Thinking about this clearly, Wu Jingzhong ordered people to find a mountain city map, a steel ruler and a compass. After calculation, they drew a circle around the hotel and the post office. The area where the two circles overlapped includes two residential areas, a school and three government offices. The site of the No. 3 suspect is here.

"I'm afraid it involves tens of thousands of people."

Wu Jingzhong looked at the map and sighed in a low voice, then laughed at himself. It is better to have a clear direction than to find a needle in a haystack. As long as you can catch a suspect, not to mention tens of thousands of people, you have to check even if you have twice as many times as possible.

Moreover, the mountain city is the territory of the national government after all, and there are not so many concerns in doing things on your own territory. If it really doesn't work, you can still dispatch troops. The enemy will never escape this time.

Thinking that the other party was blamed by the deputy director for implicating him, Wu Jingzhong pulled out his gun and slapped him on the table with murderous aura.

The news that the suspect No. 3 was found to be at the site and soon came back to Luojiawan. After Zuo Chong learned about it, he called Guqi to assign tasks to the other party.

"Lao Gu, you are in charge of the search work in Lao Wu. I will let the Police Department and the Garrison Command cooperate with you with all my strength. I have only one requirement, and the movements must be hidden.

The military can only arrange control outside. Our people and the police enter the venue in the name of household registration. The disguise must be done well. Then other areas in the city will move to cover you."

Gu Qi thought about it for a while. In order to drive away refugees and investigate underground parties, Shancheng police often checked in households, and it was not eye-catching when they came for one more time.

Besides, the enemy didn't know that they had been exposed, so they could catch the other party off guard. Thinking of this, he nodded slightly and made a statement.

"Okay, deputy poster, I will remind my brothers that after the operation begins, everyone will wear casual clothes and police uniforms, and three people will supervise each other in groups to ensure that the news is not leaked."

"kindness……"

Zuo Chong replied softly, and suddenly spoke in silence for a few seconds: "One place found Yuan Chuyu secretly listened to it, recorded the Red Russian radio station, and the other place also found that the other party had a deposit of 20,000 US dollars.

Chunyang speculated that Yuan Chuyu might have cracked some encrypted information and used this secret to extort people who should not offend. Lao Gu, do you think this inference is reliable?"

Guqi did not answer immediately, and after careful consideration, he gave a different opinion.

"I have read the file. I basically agree with Yuan Chuyu's deciphering encrypted information, otherwise the other party's abnormal behavior would not be explained.

But blackmail is a technical job. Even if Yuan Chuyu really cracks the encrypted information, who will he blackmail? Is consulates in other countries? This is unrealistic.

I prefer that the suspect contacted Yuan Chuyu first because it is difficult for a student to get involved with a spy, even if he may have extraordinary talent in deciphering.

How did the suspect know that Yuan Chuyu knew how to decipher it? Deputy, this is the key to the problem. There must be a suspicion of the suspect around the target.

It was the other party who disclosed some information about Yuan Chuyu to the suspect, which triggered the subsequent incident. I think Yuan Chuyu’s friend Fang is very suspicious.

The person questioned at Central University said that this person is the best person to Yuan Chuyu. If Yuan has any secrets, Fang Quan is most likely to know."

When Zuo Chong heard Guqi's words, he laughed happily, and the other party's thoughts were exactly the same as him.

The Republic of China is different from later generations. Later generations want to know what to search online, but in this era, the information and class are quite closed. With Yuan Chuyu's social relations, it is impossible to know people or forces that can give 20,000 US dollars. This matter must have external influence.

He patted Guqi's arm and smiled left and said, "We are heroes and have a similar view. I have ordered to strictly investigate Yuan Chuyu's classmates, teachers, huh, especially Fang Quan and the mathematics professor."
Chapter completed!