National Forensic Doctor

Qi Changye is a person who is particularly good at observation, which is his foundation for settling down.

Just a minute ago, he had noticed that his colleagues' toes were pointing outward slightly, and he knew that their colleagues were getting impatient. After all, it is uncertain whether this case is a case that requires their jurisdiction, not to mention that the case has no clue at all.

However, at this moment a minute later, Qi Changye once again observed that all his colleagues' toes were turned back.

This case - now confirmed to be a murder case, was about to make such a significant development that everyone had to pay attention.

Of course, more attention is given to Jiang Yuan. It seems that his understanding of this case far exceeds that of others.

"Put aside the toxicology test in advance. We assume that Zhou Xiangyang was indeed poisoned by aconite. I heard what you just said. There are water marks on the inside of the medicinal wine. Has it been touched?" Qi Changye's colleague stopped tensing up. He also stood up and asked.

"It must have been touched, otherwise there would be no water marks. Moreover, judging from the time of our investigation, Zhou Xiangyang must have been dead when the medicinal wine was touched." Jiang Yuan was very sure of the part he was sure of. .

"So, the purpose of this person touching the medicinal wine is to... take out the aconite?" The colleague's thinking was also very sharp. He was immersed now and immediately followed Jiang Yuan's thoughts.

Jiang Yuan had no intention of hiding it, and nodded: "I think this is a more likely reason. The active ingredients in Aconitum are mainly aconitine, hypoaconitine and aconitine. Aconitine It is highly toxic, but after processing, aconitine will eventually be hydrolyzed into aconitine, which is only one thousandth of the toxicity of aconitine.”

Seeing that several people were listening carefully to the popular science, Jiang Yuan continued: "A total of two bottles of medicinal wine soaked with aconite were found in Zhou Xiangyang's house. It is said that he often drank it to treat rheumatism. From this point of view, Zhou Xiangyang should be Someone who knows how to use aconitine. His medicinal wine may originally contain only aconitine, with little or no aconitine. However, he should not have done a toxicology analysis of the medicinal wine, and this cannot be confirmed. "

"Let's check the medicinal wine and the aconitine in the medicinal wine. Can we find any problems in terms of content? For example, the aconitine in the medicinal wine only contains aconitine, and the aconitine in the medicinal wine exceeds the standard."

"It's difficult. Because there is no standard." Jiang Yuanyan said concisely and added: "The oral lethal dose of aconitine is 3 mg, but the oral toxic dose is only 2 mg. Drinking two more cups may reach .Furthermore, there is no standard for the lethal dose and toxic dose of the mixture of aconitine, hypoaconitine, and aconitine.”

Several people looked at each other.

Qi Changye frowned and said: "In this way, even if we find out that Zhou Xiangyang died due to aconitine poisoning in aconitum, and then test the medicinal wine, even if we find that the content of aconitine in the medicinal wine is enough to cause death, because this bottle of medicinal wine has been It has already been brewed, and the contents inside were also brewed by Zhou Xiangyang or one of his family members, so it is likely that the death was caused by an accident?"

Jiang Yuan nodded slightly, and then said: "Moreover, the processed aconitum may still contain aconitine. Including the content, it is uncertain. The aconitine in the medicinal wine you just mentioned only has aconitine, and it does not contain aconitine." It is very likely to be achieved. Secondly, judging from the reports of deaths caused by aconitine poisoning, although most people have died at an oral lethal dose, some people have not reached it. There are no cases of poisoning or death in the hands of forensic doctors. Blood concentration standard. Generally speaking, the dose of aconitine poisoning has individual differences, and some differences are very large."

"It's a bit like wine brewed in rural areas." Tao Lu interjected at this time and said: "Ethanol is fine, some people produce methanol, and the amount is small. But some people are sensitive and will have problems after a few sips!"

Jiang Yuan smiled and said nothing. There was a slight difference, but not much.

Qi Changye and his colleagues understood it very clearly.

Qi Changye's colleague was a man with a Tian-shaped face. He pondered for a moment and said, "So, the murderer used aconite to poison, and his method was very clever?"

Tao Lu coughed twice and said: "Poisoning and killing people is inherently more concealed. I have never seen anyone using aconite, but I have heard of it."

Tian Zilian didn't answer, thought for a moment, and said: "The state of aconitine after death is relatively easy to confuse. I saw nothing particularly surprising in the autopsy report, indicating that this poison has no specificity. , is also highly toxic, relatively rare, and easily missed. Unlike cyanide, corpse spots will be cherry red, the body cavity and blood can smell like bitter almonds, and organs will also experience necrosis. Some people, He still screams when he dies..."

Before the office fell into awkward silence, Qi Changye said: "So, this case must be treated seriously?"

He looked at Tian Zi's face, obviously asking if he wanted to take over the case.

Before the two of them could negotiate with their eyes, Jiang Yuan coughed twice and said, "That..."

"Captain Jiang, just say what you have to say." Tian Zilian turned around and smiled.

"I want to update a little more... In fact, it should be written in the investigation report that there are no signs of intrusion into Zhou Xiangyang's house, no signs of unlocking, and no signs of breaking in the doors and windows." Jiang Yuan paused and said: "The murderer There should be a key. Either an acquaintance committed the crime, and it is unlikely that he opened the door by tricking him."

In some stories, it will be written that a certain party has designed various scenarios in order to make key molds and copy keys. In fact, picking and unlocking is a simpler matter, and some of these things can be done by thieves. However, what thieves cannot do is cover up the traces of intrusion.

No matter whether it is a single hook or a bump lock, as long as it is a standard lock, it will leave traces if you try to open it. If the on-site investigators investigate carefully, they will always find something.

The doors, windows, etc. of Zhou Xiangyang's house are considered high-end goods, so there is no possibility of unlocking them without trace.

Jiang Yuan had already said this, Tian Zilian could not help but frown and said: "The person who has the key to Zhou Xiangyang's house... the nanny?"

"I think this possibility is relatively high. If not, the case will be really complicated." Jiang Yuan glanced at Tao Lu and said, "I discussed it with Team Liu."

Tao Lu smiled and nodded, then looked at Qi Changye and his colleagues, and said: "If it is the nanny who committed the crime, the possibility of an ordinary criminal case is higher. If it is not the nanny, should I inform you again?"

The nanny discovered the deceased and called the police. The nanny also knew that Zhou Xiangyang had a habit of drinking medicinal wine containing aconite. At the same time, the nanny also had enough time to put in the aconite and wait for Zhou Xiangyang to drink it to death before taking it away.

Even if Zhou Xiangyang did not die on time, the nanny could still wait...

Of course, there are hundreds of millions of possibilities. The murderer copied the nanny's or Zhou Xiangyang's family member's key, poisoned it, waited for Zhou Xiangyang to die, and then took the aconite, avoiding surveillance during the whole process - if this is really the case. If so, it would be better to bribe the nanny, or get the nanny away and replace her with someone else...

If it is really a "billions of possibilities" situation, then maybe Qi Changye and his colleagues really need to participate, but everyone present has practical experience in this kind of sophisticated, complex and costly criminal activities. , normally it would not be shown to the public in the form of taking off one’s pants and farting.

"Then... let's go back first." Tian Zilian was also decisive. No expression could be seen on his face. He just smiled at Jiang Yuan and said: "Ningtai Jiangyuan, fierce flames are surging."

After saying that, several people quickly exited the office.

Leave behind Tao Lu, Jiang Yuan and the delicious food on a window sill.

"Remember to get the invoice for reimbursement." Tao Lu smiled, his eyes shining, and the little deer bumped around.