Detective: I have a split personality, but I’m really not a murderer

He Fudao's questions were obviously more tricky than those of other technical captains.

But the High Court still doesn't need any time to think:

"This is easy too!

If scanning electron microscopy cannot determine the residue on the fiber, I would choose to use an electron microprobe.

The specific method is to first cut the fiber and obtain its cross section.

Then an electron microprobe is used to bombard the sample with a focused electron beam. The elements in the sample interact with the electrons to emit unique X-rays.

The detector can match these X-rays with X-rays of known elements to obtain the composition and proportion of each element in the sample.

In this way, you can determine what exactly the residue on the fiber is! After Gao

Ting finished answering, Captain Wang Mingjun of the criminal investigation team immediately looked at He Fu and said:

"Team He, is High Court's answer correct?"

He Fudao looked surprised and nodded. Apparently he didn't expect Gao Ting to answer this question so easily.

"Wow, brother, you are really good!"

Xiong Leilei immediately put his arm around Gao Ting's shoulders:

"Although I don’t understand what you are talking about at all, you sound awesome!"

Zhou Yiting was also very excited:

"Anyway, let me just say that the person I am looking for is great!

The test has also been passed, now you can start appraising the car! ?"

As soon as He Fudao saw Zhou Yiting, his expression became very ugly, and he said in a low voice:

"no!

This question is not only a theoretical question, but also a practical question!

There is a fiber here, and there is also a tiny dark red particle on the fiber.

If you can identify what the particles are according to the method you just mentioned, you will finally pass the test!"

When Zhou Yiting heard this, she frowned:

"You old man, you actually want to avenge yourself privately? Gao

Ting immediately grabbed her, looked at He Fudao, and said with a smile:

"Mr. Zhou, what Captain He said actually makes sense.

Physical evidence identification relies not only on theory, but practice is more important.

As long as you have a good brain and memorize the theory, anyone can answer it fluently.

Practice, on the other hand, relies on hands-on effort and requires precise and perfect operations.

In particular, physical evidence such as fibers is very delicate, and when obtaining cross sections, it is even more important to be precise.

Otherwise, not only will the physical evidence be destroyed, but it may also affect the final identification result.

Therefore, I understand Captain He’s request!"

When He Fudao heard what Gao Ting said, his expression finally looked better, and the look he looked at him became much gentler:

"As long as you understand!"

He directly took out a plastic bag, which was obviously prepared in advance. It was indeed not deliberately making things difficult as Zhou Yiting thought.

He directly brought Gao Ting to the experimental table:

"Then let’s get started!"

Gao Ting took the plastic bag. Because the fibers were too small, he couldn't find it for a while.

However, there is a set of fixed procedures for handling this kind of physical evidence, which made it difficult for him.

After he put on the lab coat, The operation started immediately.

The first was to cut the fiber and obtain its cross section with special substances.

Although the surrounding technicians were curious about Gaoting's operation, they consciously walked to a place far away from the experimental table and stopped discussing. And put their mobile phones to silent mode.

As professionals, they know best that cutting fiber is not as difficult as cutting vegetables. It is not at the same level of difficulty. They need a quiet environment most. The nervous expressions on everyone's faces soon froze..

Because they seemed to be very skilled and required repeated confirmation before executing the operation, Gao Ting actually completed it in a few seconds.

All the investigators looked at each other, but they could see the shock on each other's faces.

Even He Fudao and others All the technical captains were equally stunned.

Their eyes were even more poisonous. They could see Gaoting's extraordinary professionalism in cutting fibers alone!

Even!

All the captains felt that Gaoting's sword seemed to be more accurate than them, and even more so. Be confident.

At least, they thought they could not complete the cross-section cutting accurately in such a short time.

Next, Gaoting began to use an electronic microprobe to analyze the fiber cross-section.

During the whole process, he Once again, he showed a level of professionalism that exceeded everyone's expectations.

The operation of the instrument was as flawless as a textbook!

As the identification proceeded in an orderly manner, Gaoting got the results in less than half an hour.

The technicians around him had been silent. , and finally exclaimed

"Damn, this Highgarden's technique is too precise and awesome!"

"Without several years of operating experience, you definitely can’t do it!"

"What a few years, you can’t understand it just by looking at it!

It is already difficult to cut such a standard fiber cross-section. In our department, it is usually operated by masters with decades of experience.

But to be able to successfully operate it in just a few seconds like him, I have never seen anyone else do it!"

……

The technical captains also admired

"major!"

"too professional!"

"This operation is more textbook than textbook!"

"I regret not recording the identification process, especially the fiber cutting process.

Otherwise, there would be enough material to teach those brats a lesson!"

"Hey, that makes sense!

If there is a video, those young technicians can see what the textbook-like identification process is.

Give them a benchmark to learn from!"

"The laboratory monitoring should have captured the operation process, but such a delicate operation as cutting fibers must not have been captured clearly!"

"I can barely make it, send me a copy via email later!"

"Hey, do you need it?

If you want a detailed identification video, as a teaching resource, just ask Gao Ting to do it again!"

"Um, but didn’t we just ask questions to embarrass him? How dare you ask?"

"Why are you embarrassed?

Besides, what is embarrassment?

We are also doing things according to the rules!

You can't just let a random person come in and say that your identification skills are great, and then let him touch the physical evidence of the case!"

"Makes sense!

We agree that he can identify the physical evidence after passing the test, which is already an exception!"

……

Gao Ting vaguely heard the discussion among the captains and said with a smile:

"Do you want to take a video of cutting fiber cross-sections for teaching purposes?

You can do it anytime!

Once this case is over, you can film whatever you want!"

All the captains nodded in surprise.

And He Fudao asked hurriedly:

"How is your analysis of the identification data going?

Are you sure what that red spot is?"

"It's paint!

Gao Ting smiled and said:"I cut a total of two fiber cross-sections, one with red spots and one without."

After separate identification, the cross-section without spots can determine the proportion of each element of the fiber itself.

In the identification results of the spotted cross-section, after eliminating elements of the same proportion, the remaining elements are the components of the red spots.

Generally speaking, red spots belong to the paint category.

Not your usual paint, though!

Many special precious elements are added to it, which have better performance in terms of lubrication, anti-corrosion, moisture-proof, and crack-proof.

This should be a high-end paint used on high-tech equipment!

This kind of paint is basically specially made.

Judging from the element ratio, it should be a special paint for a certain part of the CT machine used to scan the body in the hospital."

Hearing Gao Ting's analysis, He Fudao's eyes widened even more. Especially when he heard Gao Ting point out the CT machine, he was even more stunned.

"bang bang bang~~~"

He applauded Highgarden vigorously several times before laughing and saying:

"Highgarden, you are indeed powerful!

Your answer is absolutely correct!

Even, to be honest, your answer completely exceeded my expectations and shocked me so much!"

"It took us several weeks last year and even hired a microscopy expert to finally confirm that the tiny spots on the material that are homologous to this fiber were paint.

Later, I asked someone to identify it, and it was confirmed that it was a special paint for high-tech equipment!

It took a lot of manpower and material resources to check the element ratios of various high-end paints.

My original thought was that it would be amazing if you could identify the red spots as paint.

It's not a problem at all for you to identify the Cadillac of that year.

Unexpectedly, you actually directly identified that the paint came from high-precision equipment.

Even the hospital CT machine was right!

This is really amazing, amazing!"

After hearing He Fudao's explanation, the other investigators realized that there were so many ways to do this. They also understood how shocking the High Court's identification results were in just half an hour.

Everyone came forward one after another to ask the High Court for specific identifications. Details.

Gao Ting was also very enthusiastic and answered them one by one.

Seeing that the discussion among a group of people became more and more heated, and it seemed that they had a"long conversation", Director Sun Changming quickly dismissed the crowd and laughed and cursed:

"You guys, it’s time to discuss it!

I want to discuss it, but there will be plenty of time in the future.

Isn't there still a case?"

"Yes, yes, the case is important!"

"Gao Ting, I’ll leave your phone number. If I have any questions in the future, I’ll call you!"

"I’ll also leave you with a message about the appraisal process you just conducted. I have a lot of details that I want to ask you about!"

……

While everyone was talking, He Fudao took Gao Ting to the laboratory where Cadillac parts are stored.

This time, most of the technicians did not follow.

Only He Fudao and a few technical captains introduced to Gaoting:

"In that corner are the disassembled parts of the Cadillac!"

"The sediment, burning materials, etc. found there are all here!"

"The clothes, throwing knives, shoes, etc. of the three deceased people are here!"

……

After the introduction, the technical captains also left the laboratory.

Appraisal of physical evidence requires a high degree of concentration and they were afraid of disturbing the High Court.

At the same time, this also gave the High Court great respect and trust!

Of course, in order to prevent some technicians from harboring ulterior motives, the laboratory has also installed blind-angle surveillance.

The High Court immediately began to identify all physical evidence.

His previous prediction was correct, and none of the people in the technical team were vegetarians.

In particular, the people responsible for this appraisal are also the technical captains of each district.

It is naturally impossible for them to miss ordinary macroscopic physical evidence.

Even common microscopic evidence cannot escape their eyes.

Their professionalism can be seen from the previous questions!

Therefore, what the High Court is now focusing on is looking for trace evidence that is even rarer and requires special methods to find.

Even though Gao Ting was already very proficient in the technique of trace evidence, the entire identification process took him an entire afternoon.

When he came out of the laboratory, it was evening again.

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