National Forensic Doctor

After Liu Jinghui concluded that everyone was a suspect, he paced back and forth in the room excitedly.

Everyone in Changsha knows that high-IQ crimes are not desirable. The key to a murder case that can be successfully acquitted is to prevent the case from becoming a murder case.

As for this case, the murderer might have wanted to get the case out of the scope of murder. However, Liu Jinghui could not judge this accurately. After all, the routine of strangling to pretend suicide was really amateurish. Anyone who knew a little bit should know that forensic doctors have accumulated too much experience in this area. Even if they met a third-rate forensic doctor, they might not succeed.

However, even though he had seen through the murderer's amateur routine, there were still many mysteries, which made Liu Jinghui feel special.

This book was first published on the Internet by 𝕥𝕨𝕜𝕒𝕟.𝕔𝕠𝕞

This is equivalent to a double insurance structure.

As we all know, insurance companies that are linked together are more likely to have a situation where one link breaks and the entire system is affected, not to mention a murder case that is accompanied by intense action.

Mistakes are the norm. Perfect invisibility is hard to achieve.

Liu Jinghui took a few steps quickly, then turned around and said, "Video surveillance can only play such a big role. To solve the case, I think we can start with the motive. I think we can question the people in the apartment in detail and ask them to name at least three people who may have murdered Martina..."

When Cui Qishan heard this, he knew what Liu Jinghui was so excited about, and curled his lips: "You are playing games."

Liu Jinghui coughed twice: "We have limited knowledge about them, and most of the people in the apartment are foreigners, so it is difficult to investigate their life stories. In this case, the clues can only come from confessions. Asking them to write down three murder suspects is to force them to report, but you can't say it openly, right? After all, they are employees of the same company..."

“Okay.” Cui Qishan thought what he said was reliable. Besides, even if Shannan’s reasoning king was a little more playful, the current scene was in line with his personality.

Cui Qishan directly called his subordinates and asked them to follow the model that Liu Jinghui had just mentioned.

Seeing that everything was explained clearly, Liu Jinghui turned around sharply and stared at Jiang Yuan.

Jiang Yuan was very familiar with Liu Jinghui's performance. He gently picked up the coffee cup and asked, "What do you want?"

Liu Jinghui said: "We don't have any suspects now, so we need to update some information. Can you do a crime scene reconstruction?"

Jiang Yuan laughed dumbly: "I can't find any footprints, and there's no blood. I can't reproduce it."

Liu Jinghui was a little disappointed: "I saw some things scattered around the scene, like pillowcases and so on, we can't make a judgment based on them."

"They are the culprits that caused the lack of footprints." Jiang Yuan spread his hands.

Liu Jinghui sighed, "There were no condoms or anything like that, no sweat or semen either. I don't know what they were doing in the room. The simulated sexual asphyxiation means that the murderer was somewhat familiar with Martina and knew that she had this hobby. Did they actually have sex?"

As Liu Jinghui spoke, he looked at Jiang Yuan again.

"There is no evidence to prove that there is, but it cannot be proved that there is no." Jiang Yuan expressed it quite clearly.

Liu Jinghui nodded thoughtfully, wondering what was on his mind.

Seeing the difficulty he was having in thinking, Jiang Yuan said, "If you want to know more information about the room, you can only wait for the report on trace evidence. By then, if we can find semen on the fabric in the room, it will be the gold standard. If we find a lot of sweat, we can make a rough inference."

Liu Jinghui's eyes lit up: "Your idea is good. When will they publish the report?"

"It should be soon. I'll urge it." Jiang Yuan has handled many cases in the Zhengguang Bureau, especially participated in many major and serious cases. He is an expert who has led local criminal law personnel, so he is very good at urging for reports.

Liu Jinghui continued to think and asked, "What do you think now?"

Before long, the cafeteria of the Criminal Police Detachment of Zhengguang Bureau was filled with copper hot pots.

The criminal police of the county police brigade and the criminal police of the Zhengguang police detachment are very familiar with this scene. Although there is a big difference in the level between the two, it is mainly the difference between the cities. The work of both sides is similar in nature. They are both positions behind the front line. There are not as many small cases and trivial matters as in the police station. They are also more professional than the township level. But as long as it rises to the first level of criminal cases, it is the work of the criminal police team.

As long as there are cases to handle, there will always be cases to handle.

Nowadays, there are fewer murders, and even fewer contact crimes, but given the number of criminal police in the country, even if there are fewer cases, there will still be a backlog. Once a major case is encountered, and most importantly, once a case that the leaders pay attention to, the police who go out to handle the case have to go out early and come back late.

Because of this, the canteens of the criminal police team are relatively better, especially in police stations with more sufficient funding, where people are still willing to spend money on food.

Although the cafeteria of the Zhengguang Bureau is not large, it is neatly and compactly furnished, with all the necessary configurations. A few copper hot pots are delivered, and after a little preparation, you can start eating.

Tao Lu, who was originally preparing to go home, decided to stay and have dinner with Jiang Yuan.

However, some ordinary police officers took the opportunity to withdraw.

Jiang Yuan naturally didn't care about all this. He let Huang Qiangmin, Wei Shixun and the others serve him. He sat quietly in front of the hot pot, watching the ginger slices and scallions rolling in the clear soup, while thinking about the two cases that had happened this time.

The Chinese have always been very tolerant of geniuses. Huang Qiangmin and Tao Lu looked at each other. Without even listening to Huang Qiangmin's explanation, Tao Lu waved his hand and said with a smile, "What's our relationship? It's all up to you. There's no wine today. Let's eat first before we work!"

The people around laughed and groaned for a while, and then started to eat the hotpot in a noisy manner.

Master Wei consciously sat at the end of the table, took the serving chopsticks, put in three taels of meat in one breath, and said with a smile: "The mutton in this restaurant is all hand-cut, and it is all made according to the old standard. We have called eight chefs here today, so it should be able to be cooked. However, the most delicious and famous thing in this restaurant is not the mutton, but the frozen tofu."

"Oh, there are also some rules for frozen tofu?" Huang Qiangmin agreed.

"Homemade old tofu with low water content. Thaw it naturally after freezing. Do not use hot water to thaw it quickly." Wei Shixun said with a smile: "Actually, there is nothing special about it. It is made according to the skills of the old masters. The taste is not sacrificed for the sake of efficiency. No matter how it is made, the taste is better than the products on the market."

The latest novel is published here first!

"That's rare..." Tao Lu nodded in praise, but did not continue the conversation on this topic.

Wei Shijian was stunned. He originally thought that the leader would give a high-level speech on this matter, but he didn't expect that the stage was set up, but Tao Lu didn't go. Wei Shijian continued to think that Tao Lu probably didn't want to take on the role of a leader at this time.

Wei Shijian couldn't help but look at Jiang Yuan.

Jiang Yuan was dipping the mutton in sesame sauce and eating it in big mouthfuls, without even touching the frozen tofu.

Jiang Yuan ate quickly, and Tao Lu and the others followed suit. Many people disappeared while eating...

Liu Jinghui was old and couldn't eat much, so after staying with him for a while, he was about to leave the table. At this time, a file popped up on his phone.

"The on-site physical and chemical report is out." Liu Jinghui didn't care about anyone else and immediately handed it to Jiang Yuan.

"Let me see." Jiang Yuan put down his chopsticks reluctantly, and turned around to see Wang Chuanxing holding a pad and handing it to him.

The PAD, which has never been hit by a bullet, displays content extremely clearly.

Jiang Yuan flipped through the pages one by one, very quickly.

Measuring trace evidence sounds impressive, but in practice, it doesn't always work very well, especially if you don't know what you are looking for.

Trace means that even a very small dose can be detected. In this way, if a piece of clothing is to be fully tested, fibers, hair, soil, dust and metal particles will be obtained. There may also be paint, pollen and spores, as well as various chemicals, such as cosmetics and skin care products, etc.

At this time, the dilemma that modern people often encounter arises: they get too much information and often cannot reach a conclusion.

Therefore, in most cases, frontline detectives need to find specific objects and locations to point out the substances they want to find. For example, in kidnapping cases, they need to find traces of ropes on clothing, in drug cases, they need to find the presence of drugs, or in forensic botany, they also need the assistance of trace evidence.

Jiang Yuan was a little too familiar with this area, but this time, he was not looking for spores or something like that.

What he wanted to see was something that wasn't in the room, or even better, something that wasn't in the entire apartment.

At this moment, a string of chemical components such as CaCO, CaMg(CO), and SiO came into Jiang Yuan's sight.

Jiang Yuan immediately flipped forward and saw chemicals such as HCO and CHOSi.

"What is this?" Liu Jinghui held her stomach and paid attention to Jiang Yuan's expression. Seeing that he was serious, she started asking.

"Calcium carbonate (CaCO) has many sources, including calcium magnesium carbonate [CaMg(CO)]... and oxalic acid (HCO), hydrochloric acid and methyltrimethoxysilane (CHOSi)..." Jiang Yuan pondered for a moment: "It can be guessed that oxalic acid, hydrochloric acid and the like are cleaning agents, and methyltrimethoxysilane is a surface protective agent..."

"Protecting against what?"

Jiang Yuan said: "Dry-hanging stone. The exterior walls of the apartment building are made of dry-hanging stone, right? So, the silicon dioxide is likely to come from quartz, not necessarily quartzite. Granite, sandstone, slate and the like all contain quartz. Calcium magnesium carbonate is generally dolomite, and it is likely to come from marble, so..."

"Did the murderer climb into the apartment from the outer wall?" Liu Jinghui quickly deduced, and then said: "How did he get in? There are traces of knocking on the glass, and the window of Martina's room has definitely not been pried open. So did Martina let him in? Why? Or, he could have entered from a corridor or other room instead of Martina's room..."

Although Liu Jinghui mentioned various possibilities, he was not in a hurry. He took out his notebook and wrote down: "Check whether the windows of all rooms have been pried open from the outside. Ask all residents whether they have closed the windows and whether they heard strange noises after midnight. In particular, ask if anyone has had similar experiences. Families with teenagers should pay special attention, as foreigners like to play this kind of thing... In addition, look for people who are able to climb over the wall, especially foreigners."

"Do you want to consider the possibility of burglary?" Cui Qishan whispered.

"I've actually thought about it before. This case is not about money." Liu Jinghui shook his head decisively and said, "This is no longer the Eastern Train Murder Case. Someone got on the train and found the way he entered the apartment. This case is basically solved!"