At the beginning, he crossed over to become the cannon fodder villain's father

"That's right, Mr. Zhao, you doubt our ability like this, which makes it very difficult for us!"

They seized the opportunity and didn't want to let it go, so they started to mock Zhao Chengfeng in various ways.

But now Zhao Chengfeng has been thinking about this case all the time, and he doesn't bother to argue with these people anymore. After all, it is definitely useless for him to waste time with these people.

So Zhao Chengfeng called Director Ma directly.

"Director Ma, I have something I want to tell you!"

When they heard that Zhao Chengfeng actually wanted to say something to Director Ma, those who mocked Zhao Chengfeng were startled, and immediately left the testing room, for fear that Zhao Chengfeng would sue Director Ma.

Looking at the appearance of those people, Zhao Chengfeng couldn't help showing a sneer.

In fact, why did he complain to Chief Ma, he is not so free.

It's just because he re-examined Xiangfang and found nothing abnormal, so he decided to apply to Director Ma to conduct a comprehensive search of the crime scene again.

Because he felt that since this person did not have any suspicion of homicide or suicide, there must be some clues at the scene, and it was impossible for him to die for no reason.

Director Ma readily agreed to Zhao Chengfeng's request.

"Mr. Zhao, just go and investigate. I will give you all the call rights of my subordinates this time, and you can arrange jobs for them as you like!" Director Ma also believed in Zhao Chengfeng very much, and directly asked him to take charge. The case is over.

Zhao Chengfeng nodded.

"Okay, then I am very grateful to Director Ma, I will definitely investigate carefully!"

Afterwards, Zhao Chengfeng, who received the order from Director Ma, immediately rushed back to the scene of the crime.

The policemen here were still searching carefully, and when they saw Zhao Chengfeng coming back, they immediately went up to meet him.

"Mr. Zhao, how is it? Did you find anything?" They all looked expectant.

For these policemen, the appearance of a case is not scary, but the most terrifying thing is this kind of case where the cause of the crime cannot be found, which makes them feel that they have nowhere to use their power.

Zhao Chengfeng shook his head.

"There is nothing wrong with Xiang Fang, so now I decided to continue investigating the scene to see if there is anything missing!"

With these policemen, even if Zhao Chengfeng doubted the intensity of their investigation and decided to re-investigate, they would not say anything.

Because they all believed in Zhao Chengfeng's ability, and knew that Zhao Chengfeng came here to help them solve their problems, they all began to cooperate with Zhao Chengfeng to search the scene again.

Afterwards, Zhao Chengfeng began to order other people to search every corner of the entire room.

As for himself, he began to inspect the censer where the deceased burned incense.

It was all incense ash, but Zhao Chengfeng found several kinds.

So it should be the spices that the deceased used before. They are some very common spices on the market without any problems.

And the last thing that burned was the kind of spice he took to test.

So this seems to be no problem.

But Zhao Chengfeng felt that things would definitely not be so simple, people died, there must be a reason.

So he started to use the system to scan and search from the side of the incense burner.

After a while, he really found a clue.

In a crevice under the table next to the incense burner used by the deceased, he found a trace of unburned spices.

Zhao Chengfeng sniffed it, and it was indeed the spice of the incense ash he took for testing just now.

Seeing that Zhao Chengfeng had found the problem, everyone surrounded him.

But when they saw that it was just a small piece of unburned spice, they couldn't help but feel a little disappointed.

"Mr. Zhao, this is just a small piece of spice. Is there any problem with it?"

"That's right, Mr. Zhao, haven't we already investigated, is there nothing wrong with this spice?"

People around felt that Zhao Chengfeng was making a fuss and making a fuss out of a molehill.

After all, the incense ash after burning this spice can already detect the ingredients of this spice clearly, and there is no problem at all, so isn't there no problem with this spice?

But Zhao Chengfeng smiled lightly, he felt that these people were a bit loose in their approach to the problem.

"Everyone, don't worry. Is there any problem? Let me take a look at the ingredients here, can't I?"

Everyone was skeptical, thinking that Zhao Chengfeng's move was just superfluous.

But Zhao Chengfeng didn't care what they thought at all, and then began to use the system to analyze the ingredients of this spice.

Now, he really found the problem in this spice.

According to the report given by the system after analyzing the ingredients of this spice, there are actually two raw materials in it that will volatilize in the air after burning.

And these two raw materials are things that are not included in the composition report of incense ash.

Another point is that he found that if only one of these two raw materials is added, the toxicity is not enough to make people Zhi Jingwen, but if the two are put together, the toxicity is enough to kill an elephant, let alone personal.

Zhao Chengfeng had to sigh with emotion that the murderer also took great pains.

"Mr. Zhao, what's the matter? Is there any problem?" Seeing Zhao Chengfeng's expression, the people around seemed to be a little bit wrong, so they immediately asked.

"If there is a problem, there is really something wrong, but I can't tell you clearly here, let's go to the laboratory together!" After speaking, Zhao Chengfeng brought these people to the laboratory.

For Zhao Chengfeng to come to the testing department again, these people in the testing department are also very confused.

But with what happened just now, now no one dares to come forward to find it boring, and they all give up the equipment to Zhao Chengfeng.

Afterwards, Zhao Chengfeng also used the instruments of the testing department to carry out a component identification on the small piece of unburned spice brought back from the scene.

The final composition report was exactly what Zhao Chengfeng had in mind, so he handed the report to those policemen.

"Let's take a look, what's the difference between the inspection report of this unburned spice and the inspection report of the incense ash just now!"

Zhao Chengfeng's words made these people not hesitate, and immediately began to check the two reports.

Now, they finally found the problem.

"Mr. Zhao, there are actually two new ingredients in this spice. What's going on!" They were all very surprised.