early morning.
Chaoyang Investigation Bureau.
Inside the forensic examination room!
Upon hearing Shen Ting's question, Director Ma immediately replied:
"As for accuracy, Team Leader Shen, you don't need to worry."
Many materials testing institutions in society collaborate with national-level laboratories of universities.
If the organization itself cannot determine the problem, they will call in someone else to help with the determination.
Continue until a clear material composition is identified.
If it is a truly unique material that has never been seen before, a research group can even be formed to study it specifically.
However, this round trip takes quite a long time.
Sometimes, it may take two or three weeks, or even longer.
Even without any unexpected events, there is usually a queue.
It will take at least a week to get the test results.
It will take at least a week, right?
That definitely won't work.
The system has given them only five days to solve the case.
Moreover, even if the metal particles are identified, it doesn't necessarily mean that the culprit can be directly identified.
"It's more convenient for me to do it myself."
Thinking about it, Shen Ting looked at "Criminal Investigation Metallurgy" in the crime-solving system's skills section.
With modernization, metals are being used more and more in human society.
Cooking utensils and many electrical appliances used in daily life all involve metal.
A large amount of metal was also used in the construction and decoration of houses.
The cars, buses, subways, airplanes, and other vehicles needed for transportation all involve metals.
These metal products, due to wear, collisions, and other reasons, will produce a large number of visible or invisible metal particles.
These particles will adhere to the surface of everyone's skin or clothing.
It can even enter the human body.
It can be said that each person is a walking metal microparticle library.
Therefore!
Metal particles are becoming increasingly common in criminal cases.
Correspondingly, by combining relevant knowledge of metallurgy and materials science, criminal investigation metallurgy was formed.
As the name suggests!
This discipline specializes in studying the metals involved in the case.
Scientific methods are needed to test and analyze various metals and explain their origins.
In today's criminal investigations, the use of metal particles as evidence is not uncommon.
For example, a few years ago, a large number of high-end instruments were stolen from a precision instrument factory.
The suspect who was found claimed that he had never been to the instrument factory in question.
However, technicians using forensic metallurgy identified a very rare combination of metallic particles on the surface of the suspect's shoes—
It contains antimony, barium, and aluminum in special proportions.
When forensic investigators took samples from the workshop where the stolen instruments were manufactured, they found that the proportion of specific metal particles in the dust on the workshop floor was exactly the same as the proportion of particles found on the victim's shoes.
The suspect's excuses fell apart on their own.
Shen Ting looked at the introduction to criminal metallurgy and didn't hesitate for long:
"Exchange for Criminal Metallurgy!"
[Congratulations, host. You have successfully exchanged 13 skill points for Criminal Investigation Metallurgy.]
Special Note: You have 14 skill points remaining. Please use them carefully.
As the notification sound faded, a wealth of knowledge related to metals flooded into Shen Ting's mind.
actually!
The trace evidence that Shen Ting had previously exchanged also contained some knowledge of metallurgy.
However, the scope of trace evidence is too broad.
Fibers, oil stains, powders, etc., are all within the scope of trace evidence research.
While the breadth of the research was achieved, the depth naturally fell short.
After a rough comparison, Shen Ting concluded that the knowledge related to metal identification was more systematic in criminal metallurgy.
It not only includes the most cutting-edge research results in the field of metallurgy.
It also includes how to apply these findings to criminal investigations.
Having gained experience with trace evidence, Shen Ting quickly learned how to apply forensic metallurgy after absorbing its knowledge.
After a little thought, a method for identifying metal particles in oil stains was developed.
Shen Ting looked directly at Director Ma:
"Finding someone takes too long, I'll do it myself!"
Upon hearing this, Director Ma's expectant expression quickly turned into excitement:
"Okay, okay!"
I immediately instructed the lab technician to prepare the metal microparticles.
"Team Leader Shen, please change your clothes; we can start the analysis right away."
"no problem!"
Shen Ting quickly changed his clothes, and when he returned to the forensic laboratory, there were noticeably more lab technicians inside.
Director Ma came forward and said with a smile:
"I called all the young lab technicians and interns from the testing lab."
Let them all come and learn.
Shen Ting grinned:
"This can't be that bad!"
"Of course, of course."
Director Ma smiled and said:
"The best way for us forensic experts to improve is to observe the identification process of masters."
This process allows you to effectively identify your shortcomings.
You can also learn the appraisal habits and unique appraisal methods of masters.
But such opportunities are rare.
Those top-notch appraisers, who cares about you!
Let alone observing their appraisal process, it's difficult to even meet them.
Especially when it comes to metal identification, the process of identifying special materials is something we can't learn anywhere.
This observation and evaluation of these little guys might inspire some of them.
The case investigation department might be able to add another investigation subject!
"Well... do whatever you want!"
Shen Ting didn't care. Under the curious gazes of the lab technicians, he went to the lab table and immediately began to operate.
My dear reader, there's more to this chapter! Please click the next page to continue reading—even more exciting content awaits!
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