Wuzou and Ichizhi Takashi did not expect that the forensic doctor promised to give an answer an hour later, but they really fulfilled it.

When they glanced at the body of the Second Art Hall, they really couldn't see that there was any evidence that could identify the murderer. The more suspicious the more they were in their hearts, the more curious they were about what they would infer next.

"I have read Mr. Okata's daimyo in newspapers. As Japan's leading forensic doctor, I really want to see what the difference between forensic doctors and detectives solve cases." Rokuda stood in Pang's place with sophistication and spoke.

Okabaya nodded as the focus of everyone's sight: "Before the autopsy report, I want to tell you. The two most painful ways of death in the world are drowning and burning. Even if your flesh is cut off one by one, you cannot achieve the pain of these two ways of death."

Everyone looked at the dead Yuji Nikaido. His face was ferocious and distorted, as if as Okata said, at the moment of death, he suffered from painful torture and torture.

"Drowned people refer to asphyxiation and death caused by respiratory disorders caused by liquid blocking the respiratory tract, also known as drowning." Yu Fang walked to the front of the corpse and pointed to his exposed upper body: "Drowned is divided into systemic and asphyxiation. Generally, the skin of the corpse we salvaged in sea water expands and falls off, and the liquid penetrates into the skin, causing the epidermis to swell, turn white and wrinkle. But we all know that there are no rivers and oceans nearby, so the most likely place to be the fountain near the corpse."

"The surface of the corpse is extremely smooth, but the blood vessels and tendons are raised and maintain a certain elasticity. It is because the blood is mixed with a large amount of water pouring in from the respiratory tract, which makes the blood vessels maintain an upper limit of contraction after expanding. The reason why drowning people will be very painful is because you will feel that first, liquid flows into your mouth and nose, and then these liquids fill your lungs, heart, and blood like balloons, slowly swelling, and in pain, waiting for the internal organs to not support the invasion of these large amounts of liquids, and there is a feeling of bursting at any time."

Okara walked to the front of the head of the corpse, squatted down, and everyone's eyes couldn't help but follow.

"The evidence of drowning corpses is generally pointed to the deceased's violent struggle. In the respiratory tract, the sphenoid sinus cavity connected to the mouth and nose, and in the lungs, there are foamy drowning fluid, aquatic plants, mud, plankton and other foreign objects. In the mouth and nose of the deceased's Erjiatang, we see a large number of white bubbles."

Okao looked at everyone and asked, "Do you know what the measures taken by the fountain to prevent the gushing water from causing the water flow in the pond to form foam without too much water flow?"

Everyone shook their heads. Most of these people were rich young masters who could wear clothes and eat. Of course, they would not know the construction system of a fountain.

Including Kogoro Mouri, he was not very clear about the knowledge of the fountain.

When Okata saw Conan, he felt thoughtful. Obviously, this little devil should know that it was just inconvenient to speak.

"It is a nitration system. A biological water purification system with nitrified bacteria as the core and used to eliminate nitrates in water has a very important effect in the purification of nitrogen circulation water quality. The nitrated water will have a bit of viscosity and even salty taste than normal water sources."

When Yufang talked about the cleaning system of the fountain, Gojosu finally couldn't help but ask: "Is there any direct connection between these things and Nikaido's death?"

Ichira Takashi nodded, although Rokuda Masaji said that he was also suspicious that Okara was deliberately surrounding the circle, and what he said did not substantially promote the development of the case.

"Listen to me to continue, you will have some enlightenment." Okata was not influenced by them, and he spoke in a slow tone.

Kogoro Mouri was sweating for Okabaya. It was definitely not easy to find out who the murderer was because of the autopsy of the drowning corpse. In his opinion, Okabaya's actions that could give detailed results after a "one hour" were agreed today were young and energetic.

"Back to what I mentioned before, there is a large amount of foam remaining between the deceased's breath, which is a very normal manifestation of a drowning person. Because when the murderer presses the Second Art Hall and pours water hard, the deceased will also breathe, and after these liquids arrive at the body, it forms feedback, causing the liquid to flow back, and the foam will be formed by exhaling and inhaling."

Okabaya pointed to the mouth and nose of the corpse and looked closer: "But you can observe that these foams have strong sustainability and slow discharge speed. In addition to strength and elasticity, the formation of each foam also affects the stability of the foam. The body phase viscosity and surface viscosity are large, and the foam is stable."

"Enough, is this your forensic doctor's inference?" Yizhilong pushed his glasses and said mockingly.

Xiaolan looked at Okata anxiously because his inference today was really different from usual, and he talked about a lot of things that had nothing to do with the corpse.

Ogata ignored Ichira Takashi and continued: "Whether it is these foams or the fountain cleaning system, I want to tell you that there is only one thing. The reason why the remaining foam between the dead's breath will last for so long under our observation is that the pool water contains a lot of nitrates!"

"Nitrate?" Hearing this, Yizhi Takashi, Wuzhao Xiu, and Liuda Kazushi, all outsiders who were still suspicious of Okata's level were stunned.

"That's right, the so-called nitration system is the process of converting ammonia into nitrite in a circulating filter state, and then converting it to nitrate. When we found the body, I found the filter spray hole of the nitration system on the barrier of the fountain. So I would like to tell you very surely that the body of the deceased Nikedo Yuichi contains the unique nitrate after the pool water has been treated."

Okabata paused and then explained: "Nitrate is a relatively unfamiliar noun. It consists of metal ions or ammonium ions and nitrate ions. Therefore, before we set a series of inferences, we must have a clear understanding that the water source of this fountain is different from the normal water source. After testing, we can obtain a large proportion of nitrates."

Gradually, everyone discovered that what Okata said was full of attractive things and was no longer the resistance in his heart.

"Even if you know that the water contains the nitrate you mentioned, what can it mean?" Liutian Kazushi said in contemplation. His attitude changed significantly when he asked, because convincing is his ability.

Okabata said: "The drowning person will have subconscious resistance at the moment he enters the water, and his body will break free violently and do all his strength to make large movements. So we see that the corpse of this corpse is stiffer than that of a normal corpse, and the formation speed is faster. When the murderer drowns the dead, even if he takes good care of the dead, he will splash the water in the fountain due to the desperate struggle and resistance of the deceased."

In an instant, everyone's eyes changed and their expressions were different.

Kogoro Maori looked at Okata in surprise. Could it be that he underestimated Okata's ability, forensic doctors really have the ability to judge beyond detectives?

This kid! It’s not that he is young or arrogant, but that he is confident with full confidence.

"I think everyone is very smart. Even if the pool water splashed on the murderer's body cannot be completely washed away, and it will test the nitrate component. However, before I borrow everyone's coat for inspection, there is another evidence to completely expose the truth!"

Becoming more and more curious, everyone felt that they were as if they were there, feeling the inference process described in the newspapers.

Okata looked at Kogoro Mouri: "Before I shared this autopsy report with you, I mentioned to my uncle that the murderer's height was locked. Do you still remember?"

"Yes." Kogoro Mouri nodded.

"In addition to being proven to be 1.8 cm lower than the deceased's height, I also mentioned that the deceased's erection neck was obviously a corpse-shaped patch caused by the pressure of his palm."

"It's here." Okara used his white gloves to flip over Yuji Nikaido's body, making him turn his back to everyone, and indeed caught a trace of almost purple on the body. (To be continued. Please search for Astronomy, the novel is better and faster!)
Chapter completed!