He had just married a policewoman when he was diagnosed with criminal genius.

As Director Ding said, although these counterfeit bills are realistic enough, they are not as sophisticated as the previous counterfeit bills.

While previous counterfeit bills had many problems, only a top counterfeit bill manufacturing expert like him could discover those problems.

Then the problem with this batch of counterfeit money becomes even more serious. Anyone with a little knowledge of paper money might be able to tell that these banknotes are fake.

Such counterfeit money is no match for the rampant counterfeit money criminal groups currently operating in Jiangbei City.

"The color-changing ink ratio is incorrect. For every 100 grams of ink, you need to add 3.7 grams of film green ink and 1.2 grams of Meniere white ink to mix it."

"And these micro-textures, the level of detail is not up to standard," Lu Chen said casually.

"What?" Ding Jianguo asked in confusion.

"Oh, I was referring to the issue of counterfeit currency production," Lu Chen said casually.

Ding Jianguo was taken aback: "No, you know how to make counterfeit money?"

Lu Chen smiled and said, "I majored in painting and fine arts in college. I was once obsessed with painting banknotes and studied the production methods of banknotes for a period of time."

"Oh!" Ding Jianguo gave Lu Chen a strange look.

What is Lu researching?!

They're either researching cheating techniques or figuring out how to make counterfeit money!

If Lu Chen hadn't married Jiang Xue, someone like Lu Chen would have been a key target of their police station's surveillance.

"But what you said about color-changing ink is wrong, and that you need to add some film ink, is that true or not?" Ding Jianguo asked with some disbelief.

The main problem is that this is a counterfeit of Xia Kingdom's paper money; how could it be so easy?

If it were really that easy, then wouldn't counterfeit money be everywhere in Xia Kingdom?

Lu Chen said he had done some research, but he probably couldn't even say he knew anything about it.

Therefore, he was skeptical of what Lu Chen said.

Lu Chen smiled and said, "It should be fine."

"And I suspect they used a very sophisticated camera to photograph the original banknotes before making the replicas."

"However, this inevitably results in moiré patterns, which are difficult to resolve unless they are purely hand-painted."

Ding Jianguo didn't know about the other things, but he did know that Lu Chen said they used very sophisticated photographic equipment for copying.

Because all the equipment these forgers needed required Ding Jianguo's approval.

Among the items on the purchase list was a medium format camera with 6 million pixels.

"No, you really know a lot!" Ding Jianguo was somewhat shocked.

Jiang Xue then chimed in, "Director Ding, last time we were able to spot the counterfeit money because Lu Chen spotted it at a glance."

Ding Jianguo's pupils contracted; he had seen this new type of counterfeit money before.

If he hadn't already known it was counterfeit, he would have examined it carefully for a long time before noticing the flaw.

Otherwise, it would be very difficult to detect.

However, he keenly noticed a key word in Jiang Xue's words: "at a glance".

Lu Chen actually recognized it as counterfeit money at a glance; his ability to identify counterfeit money is quite extraordinary.

This made Ding Jianguo believe that Lu Chen knew how to make counterfeit money even more.

"Okay, then I'll take your advice and have them make the changes." Ding Jianguo was completely desperate and prepared to give it a try.

Lu Chen nodded: "Their most important problem right now is the color-changing ink. If they change the ratio of the color-changing ink according to my instructions, the problem will be much better."

Ding Jianguo was skeptical, but he hurriedly left with the note written by Lu Chen.

……

A moment later!

Ding Jianguo arrived at the factory that the police station had specially set up for these counterfeit money criminals.

"Chief!" Two heavily armed police officers outside the door saluted in unison.

Hearing the argument coming from inside the door, Ding Jianguo's face darkened.

"Are they arguing the whole time?" he asked in a low voice.

"Yes, they've been arguing for two hours already."

Ding Jianguo nodded, his expression growing even more somber, and pushed open the door to enter.

His entry did not stop the four people inside from arguing heatedly, and no one noticed that Ding Jianguo was already standing at the door.

"Old Chen, your ink ratio is wrong!" one of the oldest men, a middle-aged man with thinning hair, shouted.

Another person, who was rather thin, retorted, "Tang Sancheng, your ink ratio is even worse."

"Stop arguing, stop arguing. Can't we just talk this out? We're all here to try and get our sentences reduced," said a middle-aged man who looked somewhat kind.

"Make meritorious contributions? What meritorious contributions? A color-changing ink stumped me, how am I supposed to make meritorious contributions?"

"It's not that we're bad, but this guy who makes counterfeit money is really skilled. I wonder which genius made it."

"Yes, it's not that our skills are lacking."

"..."

Ding Jianguo had witnessed this scene countless times in the past few days.

They argued, complained, and pushed each other, but made no real progress.

The four of them, some former leaders of a counterfeit money ring and others technical advisors for the ring, were all prominent figures before their arrest, yet now they are arguing fiercely.

"Hmph!" Ding Jianguo snorted softly, which stopped the argument among them.

A plump, kind-looking middle-aged man strode up to Ding Jianguo and said somewhat obsequiously, "Director Ding, you've arrived. Have you eaten?"

Ding Jianguo didn't reply, but went straight to the point and asked, "How's it going? Any progress?"

His words instantly silenced everyone present.

If we say that the color-changing ink they made previously had a 70% similarity to the color-changing ink on genuine Xia Dynasty coins.

The color-changing ink on this newly emerged counterfeit banknote has a similarity of up to 85%.

The difference may seem small, but it really stumped several people.

"There hasn't been much progress yet." After a moment, Tang Sancheng slowly said, "Director Ding, the time you gave us is too tight. If you give us six months, no, three months to study, we can definitely produce counterfeit money that meets the standards."

"Three months?" Ding Jianguo was speechless. Three months later, the opportunity would be lost.

"No way, can you even finish it in a week?!" Ding Jianguo held up one finger.

The group shook their heads repeatedly at Ding Jianguo's request.

"Director Ding, that's impossible. We can't even handle the color-changing ink in a week."

"Yes, let alone the few of us, even if we gathered all the counterfeiters in prisons across the country, it would be impossible to finish it within a week."

"Director Ding, why don't you go and get the formula for the color-changing ink? That would save us a lot of time," counterfeiter Old Chen suggested, offering a terrible idea.

Ding Jianguo looked at Old Chen with an expression as if he were a fool: "The formula for color-changing ink is a state secret of Xia Country. Do you think I, a mere police chief, could possibly get it?"

Tang Sancheng, who was standing to the side, also mocked, "Old Chen, why don't you ask Director Ding to bring over the printing press from the Xia Kingdom's mint? That would be much easier. What you're doing is counterfeiting, not printing real money."

Old Chen was speechless, choked up.

Ding Jianguo was too lazy to watch the argument.

"Take a look at this ratio, try it out, and make color-changing ink." Ding Jianguo took out the note written by Lu Chen.