National Forensic Doctor
Chapter 366 - 366 333 Mechanics

366: Chapter 333 Mechanics 366: Chapter 333 Mechanics The entire security team was arrested, a move that first scared Yuan Jiansheng.

Immediately after, Yu Wenshu started frantically answering phone calls.

Yu Wenshu had anticipated this; his expression did not change at all as he calmly picked up the calls, gave a few standard explanations, then cut off the conversation, waiting for the next round of calls.

Shen Yaoguo was pretty much doing the same, but unlike Yu Wenshu, he found a place to hide and took calls with a smile on his face.

The two men were like telephone operators, each burning up their phones until, gradually, the frequency of incoming calls decreased.

“From outside the office, you’d think the Deputy Director was orchestrating a grand plan, but once inside, you realize he’s just an echo chamber, a telephone answering machine,” Yu Wenshu finally received a break from the relentless calls after nearly 3 minutes and took a breather, shaking his head with a smile at Jiang Yuan.

Jiang Yuan understood and replied, “Conveying orders is indeed a middle link in the grand scheme of things.”

When he dined at the homes of the villagers in Jiang Village, he used to be careful to read people’s expressions.

It was only after the demolition made him wealthy and he went to The Great Learning that he gradually neglected this skill.

Yu Wenshu let out a hearty laugh; as long as Jiang Yuan didn’t step on his face, he could be very happy.

Right then, Jiang Yuan was willing to say something pleasing, and Yu Wenshu’s ears, just recently hot from the phone calls, seemed almost healed.

“It’s alright, things will proceed as they should.

Whenever these provincial and city key enterprises are involved, people always come to plead their case.

It’s one thing if they just plead, but others want to inquire about the matter…

In reality, it’s all futile.

The criminal case has been filed for investigation, and we are already in the arresting phase.

To me, attempting to intercede or inquire at this point is just going through the motions.

I’m just going along with it,” Yu Wenshu hummed a few times, mainly to alleviate Jiang Yuan’s anxiety.

The security team from Jianyuan’s parking lot had quite a number of people brought back, but the next steps required Jiang Yuan to secure some concrete evidence.

Of course, Yu Wenshu believed they could capture a few more people with a mix of intimidation and deceit, but seeing Zhang Xiang’s attitude of not taking any action until he saw the rabbit, he knew that it would be quite difficult to employ this method and one shouldn’t expect to completely restrain everyone.

“The rest is up to you,” Yu Wenshu was ready to play the cheerleader.

Jiang Yuan had been busy preparing, and now he nodded, “Then let’s follow the plan and first examine the equipment and tools they brought back.”

Jiang Yuan himself was also trying to solve the case using different techniques.

Even a combine harvester needs a working order.

For today’s case, Jiang Yuan felt it was necessary to fully employ the Level 6 Tool Trace Identification skill first.

The Level 6 Tool Trace Identification skill, when facing normal tools, possesses exceptional accuracy and speed.

Basically, it allows one to tell at a glance whether it matches the tools used in the current case.

Furthermore, due to his extreme familiarity with tool traces, Jiang Yuan could memorize many details about the tools and traces involved in numerous files at once—although only temporarily, this greatly enhanced his work efficiency.

Ordinarily, when forensic examiners conduct tool trace identification, the common practice is to first observe, not only with the naked eye but also using a magnetometer and microscope.

The purpose is to record the trace’s characteristics in addition to finding its size, shape, and contour.

A more standard approach even involves sketching a diagram of the features.

Jiang Yuan effectively bypassed these intermediate steps, memorizing multiple trace features at once and then comparing them against multiple tools.

The forensic officers from the Criminal Science and Technology Center under Wan Baoming’s jurisdiction had also sent over a team to assist.

Three forensic officers in their twenties or so, an age for learning new techniques and methods, watched Jiang Yuan’s methods and were on the verge of losing their faith.

“Captain Jiang, there are still many tool traces involved in the files here; how about we start with just these?” one forensic officer suggested, flipping through the files, showing Jiang Yuan a few photos of tool traces and couldn’t help speaking out.

After showing him tool traces from more than a dozen cases, the officer began to doubt and feel uncertain.

Could anyone really remember so many?

Jiang Yuan couldn’t be bothered to explain and simply said, “Then draw some feature diagrams to reinforce your memory.”

Feature diagrams differ from the characteristic points of fingerprints.

Fingerprint characteristics are for computer software and for the court, whereas tool trace feature diagrams are for personal use.

Therefore, feature diagrams can be drawn very simply, without the need to be pretty or realistic; a few quick strokes to represent the trace features will suffice, or it doesn’t matter if they aren’t perfectly represented as long as the person drawing understands them.

Thus, three trace examiners from Changyang City witnessed Jiang Yuan’s flamboyant handwriting.

As it happens, Jiang Yuan also possessed sketching skills, but the only use for them in drawing these feature diagrams was in the linework.

Towards the end, Jiang Yuan even started to use a single line to complete an entire feature diagram.

The three young trace examiners didn’t dare speak, nor did they understand; they just stared blankly at Jiang Yuan’s operation, trying to steady their own swaying trees of skills.

“Found one.

This lever-pressed trace, A27, is likely the work of pliers B109.

Let’s see what case this is.”

When Jiang Yuan started working on real cases, that’s when the three young trace examiners were truly dumbstruck.

The so-called A27 was a code Jiang Yuan had made up himself, representing traces found in the files.

B109, on the other hand, referred to tools brought back by the detectives, starting with a “B” followed by a numerical order for photographing.

B109 was also the photo’s code number.

With hundreds of traces and hundreds of tools, trying to memorize them all was practically a joke.

But for a Level 6 skill, categorizing and memorizing was child’s play.

A trace examiner quickly brought over the photo of A27 and the actual tool in the photo, B109.

Just by seeing that A27 was a sliding window lock strip with clear prying traces on both sides, you would know that Jiang Yuan wasn’t guessing blindly.

The three of them couldn’t help but surge forward, joining Jiang Yuan in comparing the pliers represented by A27 and B109.

They saw that the width of the plier’s tip matched, the number of tooth patterns on the side was the same, and upon closer inspection, the dimples also seemed consistent—the three of them were slow to watch and still couldn’t confirm they were the same, but the absence of discrepancies nearly proved the answer.

“How did you find this?” The youngest trace examiner couldn’t help but let a longing look appear in his eyes.

It was like a martial arts secret manual—if someone mastered this skill, they would truly have nothing to fear wherever they went.

As Jiang Yuan made his notes, he handed the files to Wang Chuanxing beside him to provide to the interviewing officers, and explained, “There are quite a few possible approaches to deduce this lever-pressed trace; I first saw the prying trace and wondered which of these collected tools could have produced it.

Then, consider the size of the traces similarities, and additionally, one could pay extra attention to the issue of static load…”

Jiang Yuan’s first half of the explanation was listened to attentively by everyone, and they tried hard to remember it.

By the second half of his explanation, the looks in the eyes of the three young trace examiners slowly faded.

A deeper study into tool trace examination involved the study of force, such as commonly known forces and reactions, stress, external forces…

and the very important aspects of force direction, magnitude, and contact relationships such as point, line, and surface, and so on.

But as is well known, once mechanical elements come into play, whether theoretical mechanics, mechanics of materials, structural mechanics, fluid mechanics, elasticity mechanics, plasticity mechanics, damage mechanics, fracture mechanics, vibration mechanics, explosive mechanics…

None of them were easy topics.

“I’ll go get the photos,” said the young trace examiner with a knowing smile.

“I’ll fetch the files,” said the slightly younger trace examiner following behind.

“I…

will pour you some water,” said the full-grown trace examiner, bowing and nodding, a picture of devotion and obedience.