I'm only five years old, how come I've become the military region's darling?

What does that mean?

Su Mei's pupils contracted sharply as she looked at Wu Gang with some nervousness.

Wu Gang was also completely confused. "Expert Song, what do you mean by that?"

Song Yuan smiled and picked up two pieces of paper. "It's true that the technology for determining the age of paper is not currently included in the police's identification catalog. However, our criminal investigation technology has been working hard to move forward. The technology that Comrade Ruan Xiaochun mentioned has precedents abroad, and it's only a matter of time before we include it in the catalog."

"That's a matter for the future, isn't it?"

Wu Gang's stubborn rebuttal is unpredictable; who knows how long it will take, or what will happen in the future?

Song Yuan glanced at Wu Gang sideways. Having studied law for many years, he should at least have some professional ethics. But now it seems that compared to this guy and those hooligans, he's just a cultured person in disguise.

A hint of displeasure flickered across his brow.

I'm too lazy to waste my breath arguing with someone like that.

Song Yuan laid the paper flat on the table. Just then, a young policeman came in carrying something. "Teacher Song, I've brought the thing."

Song Yuan took out a stereo microscope and an ultraviolet-infrared lamp from the box.

"Although the age of paper is not currently included in the public security technical catalog, it is still an important piece of evidence for the technical department in daily identification. Under a microscope, changes in the age of paper will show changes in granularity."

"But today we're not using a microscope to examine the changes in this paper."

After all, it's pointless to watch it; Wu Gang's mouth can talk the dead back to life.

"Today we are using this microscope to observe the extent of ink penetration on this paper. Under the microscope, we can see that the ink penetrates to different depths into the paper fibers over time."

"When ink is first applied, it mainly stays on the surface of the paper and penetrates into the fibers in a shallow and uneven manner. The edges of the ink mark are relatively clear and sharp. However, over time, under the repeated influence of gravity, paper capillaries, and air humidity, the ink will slowly diffuse and penetrate deeper into the fibers, becoming more even and even. The edges of the ink mark will become slightly blurred and fuzzy."

"Simply put, the deeper and more evenly the ink penetrates, the longer the writing time will be."

As Song Yuan explained, Su Mei's expression grew increasingly grim. "This...this can't possibly be wrong, can it?"

"A mistake? What mistake? Su Mei, you might as well admit you forged it, otherwise you'll be in big trouble once Expert Song's analysis comes out."

Li Xuehong raised an eyebrow with a mocking smile, and everyone's eyes were focused on Su Mei's face.

"I don't!"

"Then I'll trouble you, Expert Song, to continue the examination." Xiaochun's soft voice was exceptionally clear and strong. "Only evidence can prove the truth."

Song Yuan picked up the letter and placed it under the microscope, shining a slanted light on the paper. "The ink on this paper has sunk deeper into the fibers, making the shadows softer and thicker when viewed from the side. Now let's switch to this divorce agreement."

Using the same method, Song Yuan spoke again, "The ink on this letter is floating on the paper, the fiber shadows are obvious, and the ink is only wrapped around the outer layer of the fibers."

With each word he uttered, Su Mei's face grew paler. After finishing that simple sentence, Su Mei staggered and slumped into a chair.

"No, no, I didn't."

"Comrade Su Mei, the expert's words are already very clear, what else do you want to say?" Xing Yong's voice was cold, his sharp eyes meeting her flustered expression.

Wu Gang was speechless for a long time.

"Captain Xing, Expert Song, this technology..."

"Wu Gang, are you going to say again that this technology isn't on the police's technical investigation list?"

Shen Huaishan sneered and pulled a stack of documents from the brown paper bag next to him. "Why don't you take a good look?"

The heavy documents made a dull thud on the wooden table.

Wu Gang's eyes fell on the bright red title at the top: "Notice on Strengthening Document Examination and Including Handwriting Time Identification in Investigative Techniques."

The date on the signature is clearly three days ago.

this......

Wu Gang awkwardly twitched the corner of his mouth. "So this is the latest research result of Expert Song."

"Aren't you going to take a look?"

Shen Huaishan deliberately spread out the materials below and opened the journal "Criminal Technology," which was published six months ago.

"Comrade Song Yuan has been conducting this research for nearly a year, and it's been published for over six months. Wu Gang, how do you plan to defend yourself now?"

A naked, invisible slap landed on Wu Gang's face. He looked at Su Mei, who was sitting on the chair looking completely distraught, and swallowed hard.

With a forced smile, she said, "Wouldn't the quality of preservation also have an impact...?"

They really won't give up until they reach the Yellow River.

"You're simply..."

Song Yuan stopped Shen Huaishan, his voice calm, "Unless this divorce agreement is kept in a completely sterile, airless vacuum, does Comrade Wu Gang think that's realistic?"

Even the most prestigious museums probably don't have this kind of technology nowadays.

"So, this divorce agreement is forged, isn't it, sir?"

Li Xuehong stood up excitedly, her eyes fixed on Song Yuan.

Song Yuan nodded slightly. "Based on my abilities and the current situation, this divorce agreement should be written in no more than half a month."

half a month.

The accuracy of the time measurement is remarkable, which shows how long Song Yuan spent researching it.

"Su Mei, what else do you want to say now?"

Ruan Xiaochun slowly stood up, her eyes calm as deep as an unfathomable well. "I know you don't like Dad and Xiaochun. You can openly ask Dad for a divorce, instead of deceiving everyone by taking advantage of his lapse in judgment. Grandma always says you're not bad, just sometimes confused, but that's not true. You know that if you directly ask for a divorce, everyone will look down on you. Everything you have now is based on Dad's achievements. You're not confused at all; you're just bad, bad to the core!"

Xiaochun's tearful voice echoed in the conference room.

"Don't cry, Xiaochun. It's not Xiaochun's fault, it's her fault."

"Jianhua needs to see a doctor. If he gets better, Xiaochun won't be bullied anymore."

Ruan Jianhua held Xiaochun's trembling body helplessly, his eyes filled with deep pain. He knew he had been foolish to let Xiaochun suffer.

Li Xuehong's eyes were red and swollen with pain. "Su Mei, you're not human."

"Officer, please do justice for Ruan Jianhua and Xiaochun. They, father and daughter... have suffered so much."

Xing Yong lowered his gaze, his brows furrowed, and coldly looked at Su Mei, who sat on the stool, looking lost and dejected.

"Comrade Su Mei, the fact that this divorce agreement is forged has been confirmed. We will ask Expert Song to issue an appraisal report, and the Public Security Bureau will also issue a statement. All the materials will be sent to Commander Cao."

Upon hearing that the goods had been delivered to Commander Cao, Su Mei suddenly seemed to come back to life, abruptly raising her head with an expression of unprecedented panic and loss of control.