"Oh?" Zhou Yan was really surprised when he heard this.

A Sherlock-level detective personally comes to help you solve the case. This is a great honor in the detective world.

It feels a bit like in the world of calligraphy, Wang Xizhi personally came over and wrote a couplet for your home.

Then this couplet is something that you will never change for the rest of your life.

So if other detectives heard this, they would probably be so excited that they would lose their breath.

But Zhou Yan...he was still a little unhappy.

Thinking, 'Why are you helping me solve the case? I took this case, and you came to interfere without telling me in advance? If Lin Xi finds out about this and doesn't give me a holiday, how will you compensate me?'

That's what he thought in his heart, but Zhou Yan was embarrassed to say it. After all, the other party was a big shot in the industry.

And people also said that this is a greeting gift, as the saying goes, don’t hit the smiling person.

"Um, let's not talk about the case first, why...why did you give me a meeting gift?" Zhou Yan couldn't help but ask.

"Haha, of course you have to show your courtesy in advance." The cook said: "Now after many layers of screening, you have still not been thrown out, so you are getting closer and closer to 'the person in the prophecy'.

If you really are that person, then maybe one day you will suddenly become a god who saves the world... Haha..."

Benjamin said with a smile. It was obvious that he didn't believe what he said, so the more he laughed, the more embarrassed he became. After a few dry laughs...

"...Well, actually, it's because I'm ready to take over this case. After all, it's a case about the [Crime Club].

And Shen Keke is a very key figure, so I have to take over all the cases related to her.

I was really rude without informing you in advance."

Benjamin finally told the truth.

"Tch, that's right. When you ask for a job, you just say "job offer." It has to be like how much advantage I got from you." Zhou Yan muttered.

Benjamin was also very depressed, thinking, isn't this boy Zhou Yan just a Trent-level detective? Now I am a Sherlock-level boss standing in front of him, why is he not respectful at all, but scolding me?

Already?

Just thinking about it.

"Well, although I haven't agreed to transfer the case to you, but since you said you have solved it, you might as well tell it and have a listen. Maybe I can adopt some of your ideas."

Zhou Yan said very seriously.

"Ah?" Benjamin was shocked. I am at Sherlock level. Is your tone the wrong way?

"Stop being stunned and speak quickly."

"Okay... okay." Benjamin suppressed the discomfort in his heart. He had already said the three words 'meeting gift'. As a gentleman and a superior super detective, he couldn't

Just like the guy in front of me, I always put the case first!

He said this to himself.

"Then I'll make a long story short. In fact, the reason why the deceased seemed to have died suddenly was because of the injection of foreign matter in the blood vessels."

"Uh... I'm sorry." Zhou Yan interrupted: "Maybe you didn't receive a call from the forensic doctor just now. This inference has been rejected because no air bubbles were found in the heart and blood vessels of the deceased."

"No, no, no. I'm not talking about injecting air into the body of the deceased. That way, a simple autopsy can always find out.

Although the Criminal Club never cares about chess pieces, it will not teach Shen Keke this simple killing technique."

"Oh?" Zhou Yan became a little interested when he heard this: "Without injecting air, how can it make people look like they died suddenly? Are there any other methods?"

"There is...injecting blood into the blood vessels." Benjamin said: "Oh, to be more precise, it is intermittent, but a large amount of abnormal blood that is different from the deceased's blood type is injected." Benjamin corrected slightly. one time.

"..." Zhou Yan was silent and thought for a few seconds: "It's impossible. If abnormal blood was injected, wouldn't it be easy to detect during the autopsy?

Wait, could it be..."

Here we need to educate everyone about what happens after abnormal blood is injected into the human body.

Two reactions will occur.

First: hemolysis reaction. Second, agglutination reaction.

Let’s talk about hemolysis first. You don’t need to care about what a ‘hemolytic reaction’ is. Just know that it can cause high fever, chills, kidney failure, low blood pressure, shock, and other symptoms.

And when the amount of abnormal blood injected exceeds 200 ml, the person will die.

So everyone has heard that this way of death occurs when all the organ functions of the whole body are affected, so the 'hemolytic reaction' can be easily detected in the autopsy.

However, Li Dabo's autopsy did not find the above symptoms, so this inference is simply not valid.

What about ‘agglutination reaction’?

This is better explained, that is, if blood of different blood types comes into contact, it will coagulate.

As for the conditions under which it can solidify, don't worry about it for now, let's look down first.

"Could it be..." A lump of coagulated blood flashed through Zhou Yan's mind, seemingly following Benjamin's thoughts.

"It seems that you have already thought of it." Benjamin said: "Actually, I don't need to tell you, you will find out yourself after a while. The blood type of the deceased Li Dabo is type A, so if you inject type B blood or type AB Blood will undergo agglutination reaction.

But if the amount injected at one time is relatively small, for example, less than one hundredth of a milliliter, then the agglutinated blood clot will be very small.

These blood clots will enter the heart along the flow rate of the large blood vessels. When the injection volume is extremely small but the frequency is extremely fast, the agglomerated blood clots will concentrate and block the turns of the large blood vessels, or hang on the heart valves.

When this accumulation reaches a certain level, the heart membrane will suddenly be unable to open for a certain second, and the ejection function will suddenly fail.

People will die quickly."

Zhou Yan was also thinking while listening, so when the other party paused, he subconsciously picked up the conversation.

"Well, it destroys the function of the heart valve! If this is done in ordinary patients, it can be easily detected.

But if it is on a dead person, it is very difficult to identify.

Because after death, the blood will coagulate quickly, even within half an hour at the fastest.

It's winter now, it's snowing again these days, and the temperature is extremely cold.

If a corpse is left outside all night, all the blood in his body will become coagulated.

And among the blood that has coagulated all over the body, I want to find other coagulated blood.

hehe.

It feels like throwing an ice cube into the water and then freezing the water!

The original piece of ice disappeared without a trace...
Chapter completed!