Municipal Bureau of Technology, Testing Room.

Lu Weiwei’s question is also the result that everyone wants to know the most.

Gu Chen put his hands behind his back and walked back and forth twice, murmuring: "Logically speaking, when a person dies, the heart stops, the blood stops flowing, and all metabolic processes stop."

"Then the liver's ability to destroy alcohol and narcotic analgesics ceases."

"But...but this type of drug can generally remain unchanged in the blood, urine and tissues, until it is finally destroyed by the putrefaction process."

Glancing back at Gao Chuanfeng, Gu Chen added: "But judging from the situation described in your test results, if the body has not been severely decomposed after just 48 hours, it means that the tissue has not yet undergone chemical changes."

"That's the truth." Gao Chuanfeng completely agreed with Gu Chen's opinion and said lightly:

"This OxyContin is as you just explained. It is a narcotic analgesic. After ingestion, it can be found in all human tissues, but it is mainly found in the blood and liver."

"However, when a person dies, the drug content will remain unchanged in the body, so these can be determined through testing."

"But alcohol may be a little trickier, because some corpses will produce alcohol during the decay process."

"Alcohol is produced during corruption?" After hearing what Gao Chuanfeng said, Lu Weiwei suddenly became interested and said directly:

"Then according to the plot you described, due to the insufficient level of corruption, this phenomenon will not occur, right?"

"Even if it does happen, there is actually a way to solve it." Before Gao Chuanfeng could speak, Gu Chen directly interjected: "We can also extract the vitreous fluid from the eye."

"Aspirate vitreous fluid from the eye?" Lu Weiwei was even more confused after hearing what Gu Chen said.

I have never heard of this stuff.

But Gu Chen explained patiently: "Ventreous fluid is the gelatinous fluid inside the eyeball. Changes in the alcohol level tend to lag behind the blood content by about two hours."

"This means that at any point in time, the alcohol content of the vitreous fluid reflects the situation two hours ago."

"So the vitreous fluid will not be affected at the beginning of the body's putrefaction, and the body will definitely remain the same after being soaked in low-temperature water for 48 hours."

Glancing at Gao Chuanfeng beside him, Gu Chen added: "So the forensic doctor will not encounter problems during the examination. It can measure the amount of OxyContin and alcohol contained in the victim's blood when he died."

"Hmm." Although she was half-informed, Lu Weiwei still humbly asked for advice: "Junior Brother Gu, what is the use of these values? Can we use this to determine whether the deceased died of drugs or drowning? Or whether he was murdered or an accident.

Drown?"

Gu Chen thought for a few seconds and did not answer immediately.

Gao Chuanfeng on the side also fell into deep thought.

But a moment later, Gu Chen replied before Gao Chuanfeng: "As far as I know, alcohol plus OxyContin is a very dangerous combination."

"Generally speaking, the additive effect will inhibit the respiratory center of the brain and cause asphyxiation and death."

"If these two ingredients exist alone, they are usually not enough to endanger life. However, as long as they appear in moderate amounts at the same time, they may cause death."

Glancing at Zou Qiang's body on the examination table, Gu Chen also guessed and said: "This Zou Qiang may have been drunk and fell into unconsciousness, so he drowned in the water in the bathtub."

"But..." After hesitating, Gu Chen said cautiously: "But we don't know yet whether Zou Qiang usually lives in the villa. We need Xu Fangzhi and the owner of the villa to know this.

Further investigation is required."

"However, whether the murder was an accident, suicide or homicide, in my opinion, there is no difference."

"Perhaps it is difficult for us to determine the real cause of death of the deceased. Perhaps we can only determine that the content of alcohol and OxyContin in the deceased's body was very high, and that he died of drowning."

"But if we find bruises on the arms, legs or other parts of the body, then there may be other possibilities."

"Including that it can be inferred that the deceased Zou Qiang was severely beaten or that his actions were restricted in some way. In this case, the case may develop in the direction of homicide."

"That's right." After hearing what Gu Chen said, Officer Wang glanced at Gao Chuanfeng beside him and asked, "Then have you checked out any other abnormalities on the body of the deceased Zou Qiang?"

"This..." Gao Chuanfeng couldn't make a conclusion for a while, so he took the initiative to turn back and continued: "Let me take a look again."

"Well, okay." Police Officer Wang nodded silently and said with his arms crossed: "Logically speaking, if the content of these two drugs is fatal enough, it means that the deceased Zou Qiang may have died before drowning."

"But then again, if the levels are not high enough to cause intoxication, then these assumptions are completely irrelevant, right?"

"Yes." Gu Chen agreed with Officer Wang and expressed his own opinion:

"It's simple because homicides, suicides, accidental overdoses and drownings all look exactly the same at autopsies."

Glancing at Gao Chuanfeng, who was conducting a comprehensive examination on Zou Qiang's body, Gu Chen added: "One of the extremely difficult matters that the forensic doctor must determine is whether Zou Qiang died of drowning."

"This is often difficult to determine, because if the body is soaked in water for 48 hours, it is conceivable that the lungs will be filled with water."

"But this is just a passive process, because air will seep out and moisture will seep in."

"Uh..." When Gu Chen said this, Lu Weiwei said with some worry:

"So if this is the case, what matters will we examine to determine that the victim Zou Qiang died of drowning rather than drug overdose?"

Gu Chen nodded silently, walked in front of everyone, and continued to express his opinion:

"Typically, a drowning person will struggle for air while inhaling substances contained in the water, including water, soil, debris, small animals and plant material."

This chapter is not over, please click on the next page to continue reading! "If the bathtub in the villa's bathroom is the first site, then most of these substances can be eliminated."

"And if this was a passive process, then you wouldn't find this material deep in the lungs."

Walking in front of Gao Chuanfeng, Gu Chen said again: "Furthermore, we can look for evidence to confirm that the deceased struggled hard in the hope of breathing air."

"When the victim inhales deeply and forcefully, and when water and debris are drawn into the lungs, coupled with the accompanying coughing spasms, the throat and airway tissues are damaged."

"Evidence of trauma and bleeding can also be found in the tissues lining the nose, throat, airways and lungs."

Looking back at Lu Weiwei, Gu Chen also smiled and said: "So you can understand that just finding drugs in the victim's body cannot actually tell us the actual cause and manner of death."

"We also have to look at other things, and the drug content in the body of the deceased can help us determine whether the content reached fatal levels or was only part of the cause of death."

"After all, bruises and other trauma factors on the body may also lead us in the direction of homicide."

"Because accidents and suicide cases rarely occur, water in the lungs cannot be used as a diagnostic basis for drowning."

"But everything else I've discussed previously implies that the deceased was probably drowned."

"However, it still cannot be determined whether it was an accident, suicide or homicide."

"Yes." Lu Weiwei nodded silently and agreed, "You said before that these conditions did not appear to be different during the autopsy."

"The circumstances of such an incident often require further investigation to determine."

"so……"

Glancing at Gao Chuanfeng who was busy, Lu Weiwei said again: "So Gao Chuanfeng, have you found anything?"

"There is no special wound." Gao Chuanfeng turned off the operating lights and breathed a sigh of relief:

"It seems that I can only start with the doses contained in his body to see if it was the death caused by these doses that caused him to die in the bathtub."

"This is the only way." Gu Chen nodded silently, feeling that for now, the testing can only go so far.

However, if the dosage of the drug detected in the body exceeds the standard, it can be proved to be the cause of Hu Zouqiang's death, and Gu Chen may be able to determine the motive for death.

But the most important thing at the moment is to figure out why Zou Qiang appeared in the Blue Mountain Villa.

Furthermore, how many people Zou Qiang had contact with during the period of his disappearance requires further investigation.

Since it was getting late, Gu Chen was on night duty again.

There are many things that need help from He Junchao tomorrow.

Therefore, after Gu Chen said goodbye to Gao Chuanfeng, he took Officer Wang and Lu Weiwei directly back to Furong Branch.

…

…

The next morning.

The weather was just like Gu Chen's mood, gloomy.

Because they were on night shift last night, Lu Weiwei and Officer Wang were both very sleepy.

Officer Ding, Wu Xiaofeng and Ji Zhe who came to help later were all exhausted.

Therefore, among the three offices, only the tool man, He Junchao, is the most energetic.

As soon as He Junchao sat down, Gu Chen walked directly to him.

"Senior Brother He, the situation was sent to you yesterday in the form of a briefing. I wonder if you read it?"

"I saw it when I got up today, what happened? Is it right to investigate Zou Qiang's whereabouts?" He Junchao asked.

Gu Chen nodded silently: "The more details, the better. It is best to investigate the circumstances before his death."

"We took Zou Qiang's body to the Municipal Bureau's Technical Section for testing last night, and it was also verified that his death time was 48 hours ago."

"It was two nights ago, but where had he been before? Who had he been in contact with? Did he drink alcohol? We can't control these, so we can only rely on you."

"No problem." Gu Chen said this, and He Junchao immediately knew his value.

Sometimes being a tool man is also a form of honor.

Patting his chest, He Junchao also said confidently: "Just leave this to me. You worked the night shift yesterday, so go and take a rest. I will tell you when I find clues."

"Okay." Gu Chen nodded silently and left.

However, at 10 o'clock in the morning, Gu Chen kept watching He Junchao's various operations, looking very serious.
To be continued...