Chapter 1242: Despised  Have you taken away all paper items?  Zuo Zhong frowned after listening to Wu Chunyang's report. A group of well-trained suspects took such a big risk to pretend to be police officers, just for a student's textbook and homework? Central University did undertake some national defense projects, but as far as he knew, junior students like Yuan Chuyu were not among the researchers. Could it be that something went wrong. After thinking about it again and again, Zuo Zhong thought that he should talk to the school and Yuan Chuyu's tutor. The scene was here and he couldn't escape. He had to determine why the suspect was interested in Yuan Chuyu's belongings as soon as possible. Once this was figured out, the case would become clear. Faced with the request of the deputy director of military unification, the school did not dare to neglect. A vice president in charge of the mathematics department came forward and led Zuo Zhong to meet Yuan Xinyu's mentor, Xu Kang, a professor in the mathematics department of Central University. Professor Xu was neither disgusted nor enthusiastic about the spy's visit. He slowly stood up from the wicker chair behind his desk and shook hands with Zuo Zhong. Seeing Xu Kang's reaction, the vice-principal was angry and anxious. He quickly asked Zuo Zhong to sit down, poured a cup of hot tea and put it on the table, and introduced Xu Kang's details in a low voice. "Professor Xu is from Jiangsu Province. After graduating from Cornell University in the United States a few years ago, he joined Central University to teach. He has a very high professional level." Zuo Zhong nodded after hearing this and looked at Xu Kang, who had already sat down voluntarily. A smile appeared on his face and he took the initiative to chat with him.

"Hello, Professor Xu, I am Zuo Zhong, the deputy director of the military command. I am here today about the disappearance of your student Yuan Xinyu. Do you have any clues that you can provide?" Under the warning from the vice principal's eyes, Xu Kang had to put down the book in his hand, sat there and frowned and thought for a while, then slowly shook his head. "Yuan Xinyu is a very diligent and smart student. He often comes to the office to ask me professional questions. Other than that, I don't have much personal communication with him. Logically speaking, when a student encounters this kind of thing, it is simply because of emotional and financial disputes. Director Zuo, I think you can check along these two points. " It was the first time that Zuo Zhong met the person involved who taught him how to investigate a case. He smiled lightly and did not take the matter to heart. Then he turned to the vice president and asked what national defense projects Central University had undertaken, especially with Relevant to the Department of Mathematics. This is where problems are most likely to arise. Although the national government is weak and there is a large gap between the overall scientific and technological level and Western developed countries, the Republic of China still has a certain leading position in certain specific fields and professions. Such as archeology and paleontology, agricultural technology, traditional Chinese medicine, geology, mathematics, railway and civil engineering, epidemic prevention and public health. Taking mathematics as an example, from the 1930s to the 1940s, a well-known mathematician from later generations achieved a series of important results in the fields of number theory and complex number analysis, and emerged in the international mathematics community. If Yuan Xinyu has been exposed to some sensitive projects, then this project is likely to have been targeted. As an intelligence agency, the military commander must take action. When the vice-principal heard Zuo Zhong's question, he did not answer hastily. Instead, he thought carefully for a long time before giving the answer. “In order to support the Anti-Japanese War and national defense construction, we have undertaken a number of national defense scientific research projects, covering multiple fields, including engineering, chemistry, physics and biology. Such as improving the stability and power of gunpowder, weapon design and improvement, research on anti-virus and anti-chemical weapons, optimization of radio equipment, and intelligence and cryptography technology. These are all related to mathematics. After all, mathematics is the mother of science. However, Director Shen Dongxin of the Central Unification Committee has given instructions that all personnel involved in the project must be strictly screened and must have separate accommodation and meals to prevent leaks. Yuan Xinyu has just entered the school and is definitely not qualified to join the research project. Moreover, he is extremely active in the school and knows too many people, so he is not suitable for secret research. " Zuo Zhong quickly went through the information the other party said in his mind. It was not surprising that the Central Committee appeared in this matter. They themselves had the responsibility to screen important agency personnel. But if so, what would be the problem? He looked at Xu Kang next to him and asked the vice-principal again a question, whether Xu Kang had participated in the research project. The vice-principal looked embarrassed, glanced at Xu Kang and whispered back. "Yes, Professor Xu participated in the formulation of the code for diplomatic messages of the Ministry of Foreign Affairs and the deciphering of diplomatic messages to Japan." Seeing that the matter involved him, Xu Kang could no longer remain silent. He took a sip of hot tea from his cup and said a lot of disturbing words. “Mathematics is not only a basic tool in scientific research, but also a key driving force for scientific progress. It provides rigorous logic and precise tools for scientific research, allowing us to have a deeper understanding of the complexity of the natural world.

For example, cipher machines have complex circuits and rotating disk systems, which results in the password generation process having certain linear characteristics. We can use linear algebra methods to analyze the behavior of these circuits and rotating disks and deduce some password generation rules. " ? ? ? ? Zuo Zhong's head was full of questions. If I knew this, would I have been a private detective in my previous life? I would have gone to Dachang 996, okay? Seeing his dull look, Xu Kang sighed, feeling that he was talking to a cow, so he had to explain it in a more understandable language. "The Ministry of Foreign Affairs has intercepted a large number of Japanese encrypted telegrams. After preliminary analysis of these telegrams, we noticed that the encrypted messages contained certain repeated patterns, which were related to the structural characteristics of the Japanese language. And I am responsible for research in this area. I know what you mean, Deputy Director Zuo, but I can be sure that I have not disclosed secrets to anyone, and even if I did, those people would not understand. " Speaking of this, the corners of Xu Kang's mouth curled up slightly, and the sarcasm was evident, which frightened the vice-principal. Military Command is a place where dead people have to open their mouths to enter. If the man named Zuo is angered, not only Xu Kang, but even he will not be able to see the sun tomorrow. Zuo Zhong stared at Xu Kang and roared in his heart, MD, this guy looks down on me! Is it amazing to know advanced mathematics? Well, it is indeed amazing. But if you point at the monk and call him bald, that's your fault. The minds of these scholars are indeed very dirty. After being silent for a while with a cold face, Zuo Zhong was about to get up and say goodbye when Wu Chunyang walked in from the door, approached his ear and reported a new situation. "Deputy Chairman, Yuan Xinyu's roommate has important clues to report." Zuo Zhong took a deep look at Xu Kang and strode out. He kept telling himself that there are many adults and not to be like a nerd, and walked to the temporary interrogation room. In the room, a young student wearing glasses jumped up from his stool when he saw the two people entering the door, and said hello nervously. "Okay, let's just tell you what you want to say." Zuo Zhong went straight to the topic and was not interested in listening to the other party's nonsense. The student murmured twice and mustered up the courage to speak: "Sir, Yuan Chuyu and I are roommates. Those people stole the money I put in my desk. Can you help me get it back?" Perhaps he thought it was a bit ridiculous, so the student quickly added: "I come from a poor family, and my mother earned all this money by sewing clothes for others, so please be considerate." Is this the so-called important clue? "Get him away quickly!" Zuo Zhong was furious. After thinking about it, he waved his hand to the little spy: "Forget it, register the number and record a confession for him." Looking at the students being pushed out, Wu Chunyang reported the survey results of the dormitory. Around Yuan Chuyu's bed, technicians were unable to extract any effective clues such as fingerprints. The suspect should have worn gloves and acted cautiously. In addition, a simulated portrait based on the witnesses' oral accounts has been drawn and can be distributed to the police and the Ge Lao Association at any time to conduct large-scale manhunts. Wu Chunyang asked for permission to disclose the portrait. Regarding the first result, Zuo Zhong was not surprised. Not to mention intelligence officers, even experienced thieves could steal without leaving any traces. As for making the mock portrait public, he hesitated before deciding immediately. He had to see the outcome of Gui Youguang's pursuit first. Just then, a little spy came in to report that the pursuers had lost their target on the riverside, and also told the specific location of the loss. Zuo Zhong asked Wu Chunyang to stay and continue the investigation, trying to figure out the list of paper items taken away by the suspect, and then he got in the car and headed to the river. Half an hour later. The Jialing River is extremely lively. Teams of spies with flashlights are searching on both sides of the river. The river is full of robotic boats that make chugging noises. From time to time, people on the boats throw fishing nets with barbs into the water and drag them along the river. Come down and patrol. Behind a **** on the shore, Gui Youguang squatted next to a black Buick riddled with bullet holes. There was a white-soaked corpse on the left side of the back seat, looking forward quietly, looking a little scary.

Not far from his feet, there was another corpse lying on the ground. There were several holes in the chest, and it was also soaked by the river water without a trace of blood. "Vice seat." "Vice seat." Hearing the voice coming from behind, Gui Youguang turned around and saw Zuo Zhong coming, trotting up to Zuo Zhong's side and talking as he walked. "Two bodies were found at the scene, and no identification was found on them. The police uniforms they wore were replicas, but the stitching was meticulous and the cap badges were also made very finely. Ordinary gang members do not have such a level of imitation. Judging from the traces inside the car, there should have been four people in the car, two died and two escaped. One of the two who escaped suffered a penetrating injury to his left arm. I have sent people to various hospitals to stay on guard. " While talking, the two of them came to the right rear door of the Buick. Zuo Zhong put on his gloves and opened the door. He turned on his flashlight and shined it into the car. They saw a dead body. The other party was a standard yellow man with strong muscles. No other information could be analyzed from the appearance alone. Zuo Zhong looked up at Jiang and said something to Gui Youguang. "We will search the whole city with the photo of the deceased and the simulated portraits of the other two people. If you want to see the person alive, you will see the corpse if you are dead. Pay attention to safety during the search. I have a hunch that this time we may really encounter an old enemy. ”