On the other side, Moriran and Narumi Asai are investigating the number one suspect who has just returned home, Tomoshi Tanaka.

"Mr. Tanaka, could you please answer a few questions first?"

Lin Xinyi slipped away inexplicably, and Mao Lilan had to carry the girder by himself:

"Where were you at the time of the incident, which was in the past hour?"

"I'm walking in a nearby park."

"Can anyone prove it?"

"No, there were very few people in the park at the time, so a few people might see me."

"But it is impossible to find them to testify."

Tomoshi Tanaka's answer was watertight.

He honestly admitted that he didn't have an alibi, but no one could prove whether he was out for a walk at the time.

"Hmm..." Mao Lilan's scalp tingled slightly.

She mustered up her strength before launching the next offensive:

"Do you know that your brother, the deceased Mr. Tanaka Kazuyuki, has any enemies?"

"I don't know."

"My brother is a freelance writer, and he stays at home all the time."

"I'm usually very busy at work, and even if I live together, I don't know much about his life."

Tanaka still hasn't shown any flaws.

He did not deliberately create a situation where his brother had an enemy, but he emphasized that he did not know much about his brother's life, leaving the police with infinite reverie.

Maolilan had no choice but to release an oppressive momentum and said to Tanaka Tomoshi:

"Mr. Tanaka, we have found evidence to prove that this case was committed by an acquaintance and a fake scene."

"After the murderer killed the deceased, he was able to calmly stay in this villa to dispose of the body."

"Do you have anything to say about that?"

She lowered her tone very seriously, implying that the police had a lot of evidence against him.

And hearing that the police had confirmed that it was an acquaintance who committed the crime, Tanaka Tomoshi's expression did change slightly:

The scene that I faked was discovered so quickly...

Damn, it looks like there's no way to put it on anymore.

Tanaka's face quietly turned cold.

But at the same time, he quickly stabilized his position:

"Acquaintances committing crimes? No, it won't, right? ”

"My brother he... Who did you really have a grudge with? ”

He said this with a look of surprise on his face, as if he really didn't know anything about it.

Mao Lilan lowered his face coldly and offered one last move:

"Mr. Tanaka Tomoshi, we need to test you for luminol occult blood and take a sample of occult blood on your body."

"We want to know if you have the blood of the dead on your hands."

"Y-You're suspecting me of being a murderer?"

"Nonsense! How could I kill my own brother who was dependent on me for his life?! ”

Tomosaki Tanaka's emotions were very emotional.

But surprisingly, he did not resist the inspection at all:

"What are you going to do with a occult blood test... Just do it! ”

"But I have to say it beforehand—"

"I do have human blood on my hands."

"Because I just said that I had a nosebleed in the afternoon, and I wiped it with my hands!"

As he spoke, Tanaka Tomoshi also raised his palm and asked Mao Lilan to observe carefully:

There is no need to do any luminol occult blood tests.

Between his fingernails, there were simply dried blood spots visible to the naked eye.

"If you want to take a sample, do it now."

"I'm sitting upright, so I'm not afraid of any inspection!"

Tomoshi Tanaka put on an impassioned look, as if he had been greatly wronged.

And Mao Lilan frowned and reminded:

"Mr. Tanaka, don't get too excited."

"It's useless to cover the blood of the dead with your own blood."

"Even if the blood of the two of you is mixed, we can find out whose blood it is!"

"Oh..."Tomosaki Tanaka sneered: "Then you guys check!" ”

"That's right... I have to warn you, young Miss Forensics. ”

"Even if the blood sample taken from my hand has the same DNA test result as my brother's, it doesn't mean that it is his blood."

"Huh?" Mao Lilan was slightly stunned:

What do you mean... The DNA test results are the same as those of the deceased, so why can't it be proved that it is the blood of the deceased?

"Huh." There was a touch of mockery in Tanaka's smile:

"Miss Forensic Doctor, your level of knowledge seems to be a little lacking."

"Don't you see? My brother and I are twins who look the same. ”

"This—" Mao Lilan was still a little stunned.

But Asai Narumi, who has a professional medical background on the side, reacted suddenly:

"Oops... The two of them, are MZtwins. ”

“MZtwins？” Mao Lilan was puzzled and asked, "What do you mean?"

"Identical twins..."

Looking at the smug smile of Tomoshi Tanaka, Asai Narumi's face became very ugly:

"The two brothers came from the same fertilized egg, which split into two cells before implantation in the uterus, and implanted separately to develop into humans."

"So, as identical twins, Mr. Tomoshi Tanaka and the deceased Mr. Kazuyu Tanaka..."

"The DNA of the two of them is exactly the same!"

"With current identification technology, there is no way to distinguish identical twins using DNA!"

Narumi Asai told the chilling truth.

Hearing this, Mao Lilan's face also changed slightly:

She finally understood why Tomoshi Tanaka was so fearless.

Because his DNA is the same as that of the deceased.

Even if a sample of the deceased's blood was taken from him and the DNA was found to be consistent with the deceased, there was no way to prove that it was the deceased's blood.

Tanaka can say that it was his own nosebleed.

"W-What about this?"

Maolilan's expression was a little ugly:

The murderer actually directly exploited the loopholes that cannot be done by science and technology now, making the evidence invalid!

"Huh."

Tanaka Tomoshi simply didn't hide it anymore, and laughed and mocked:

"I said you, if the evidence is insufficient, don't wronged good people!"

"I've cooperated with your investigation so much, if you can't prove that I'm the murderer... The truth is obviously, I'm not a murderer at all! ”

His smile was full of smugness and banter.

And he seems to be enjoying the thrill of crushing the police and leaving the investigators speechless.

But at this moment, when Tanaka Tomoshi found out proudly, Moriran and Asai Narumi were at a loss...

A firm and powerful voice came from afar:

"Mr. Tomoshi Tanaka, do you really think..."

"Our Metropolitan Police Department Forensic Division, will there be no way to take you?"

Lin Xinyi appeared again.

His eyes shone with a fiery light, and there was an energy in his gaze that seemed to burn all evil.

"Y-What are you talking about..."

Tomosaki Tanaka's smile came to an abrupt end.

"Huh."

Lin Shinichi returned the sneer that Tomoshi Tanaka had just given him:

"Idiot, if you honestly hide outside and find a way to deal with the blood stains on your body, we may have to put more effort into the investigation."

"But now, you're pretending to be clever enough to run back?"

In Lin Xinyi's opinion, Tanaka Zhishi is completely a shell Lang ordering takeout - door-to-door delivery of!

"Thank you so much for your cooperation!"

"Miss Maori, hurry up and take a sample of the remaining blood from Mr. Tanaka's body!"

He ordered in such a firm tone.

But Tanaka Zhishi was slightly weak in his heart, and said inwardly:

"What's the use of taking blood samples?"

"My brother and I both have the same DNA, how else can we tell the difference?"

"Haha."

Lin Xinyi laughed again, and the laughter made Tanaka panic:

"Even in the 'future', in the 21st century, genetic screening of identical twins is a worldwide problem."

"But just because there's a hard question doesn't mean there aren't answers."

"Mr. Tanaka, who told you..."

"We can't identify identical twins from DNA?"

Tomosaki Tanaka: "This..."

His originally calm and calm face instantly lost a bit of blood.

"Idiot!"

Lin Xinyi stared straight at him and shouted:

"Before I send you to prison, I'll let you gain knowledge again!"

"Do you know what DNAmethylation is?"

What he said was written in Japanese and couldn't be understood.

What's more, he dragged it in foreign language.

Tomoshi Tanaka was suddenly stunned by this sentence.

"The so-called DNA methylation is that under the action of cytosine methyltransferase, the methyl group of S-adenosylmethionine is transferred to the 5th position of cytosine to form 5-methylcytosine."

"Methylation modification determines the pattern of gene expression and is involved in many important biological processes such as gene expression regulation, developmental regulation, genome imprinting, and X chromosome inactivation."

Lin Xinyi's face was serious again, and he said a passage from heaven.

Tomoshi Tanaka was said to be pounding in his heart.

At first, he thought that Lin Xinyi had made up some nonsense and deliberately deceived him.

But he didn't expect that Lin Xinyi would become more and more engaged and professional the more he spoke:

"For mammals, the DNA methylation pattern is established during embryonic development, which is relatively stable, general-specific, adjacent to SNP markers, and easy to analyze results."

"This pattern is stably preserved during cell division, and the degree of methylation between individual DNA methylation sites in MZ (identical twins) is even greater than the difference in unrelated individuals."

"All in all..."

Under the incomparably empty gaze of Tanaka Tomoshi, Lin Xin summed up loudly:

"By identifying differences in DNA methylation modifications, we can identify and distinguish DNA samples between identical twins."

"When the time comes, it will be clear whether the blood on your hands is yours or your brother's!"

The DNA of identical twins is indeed the same, but there are differences in methylation modifications.

To describe it in an easy-to-understand way:

It's like two buildings built according to the same blueprint.

At the time of the building's construction, the two were almost identical.

However, as the number of residents gradually increases, the decoration style of each household is different, which causes the difference in nature.

Lin Xinyi is not bluffing Tanaka Zhishi.

Technically, there is a way to identify identical twins through DNA.

"It's... This..."

Tomoshi Tanaka was caught off guard by that technical term.

He was flustered for a while, and he was almost scared out of BGM, and he was about to kneel down and confess his guilt.

But, under this horror...

Tanaka Zhishi still gradually stabilized his position-

His psychological quality is actually not strong, but as a social elite who reads books and newspapers every day, knowledge gives him the strength to resist to the end:

"What are you kidding..."

"Steward Lin, you were bluffing and bluffing people just now, right?"

"I've read the latest popular science magazines, and those authoritative experts have said in the article:"

"There's no technology to screen the DNA of identical twins!"

Tomosaki Tanaka said through gritted teeth.

He believed that his knowledge could not be wrong, so he dared to face the investigation directly.

But unexpectedly, when comparing knowledge with Lin Xinyi, he lost:

"yes, not yet."

"In this day and age, there is really no identification technology to screen identical twins."

"But don't worry, the technology will be available soon-"

Lin Xinyi paused slightly, and said in a calm tone:

"I'll go back to writing my paper now and send it in a few days."

Tomoshi Tanaka: ""

He was stupefied by Lin Xinyi's earth-shattering words:

What the... If you don't have identification technology, you can spot the tech tree yourself?

Can the case be solved like this?

Are you a forensic doctor or a scientist?!

"Humph! Smart! ”

Lin Xinyi's smile was full of disdain, but he secretly sighed in his heart:

Of course, he didn't have the skills to write a dissertation.

In fact, even the tirade he just said was memorized on the spot not long ago.

But Lin Xinyi's work happens to have a great interdisciplinary relationship with Gray Yuanai's major.

He doesn't have the ability to engage in scientific research, his girlfriend does.

Not only that, but more than enough:

As a rare genius science girl in the world, Gray Yuan Wai brought N SCI papers as a dowry.

The name of the first author can be written in full of Lin Xinyi.

Thinking of this, Lin Xinyi couldn't help but feel a kind of happiness of being raised by a rich woman:

This girlfriend... It's worth it!