Coroner Coroner

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

Mao Lilan turned cold, and resorted to the last trick:

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

"We want to know if your hands are stained with the blood of the dead."

"You, are you suspecting that I'm a murderer?"

"Nonsense! How could I kill my own brother who I depended on for life?!"

Tomoshi Tanaka was very emotional.

But surprisingly, he didn't resist checking at all:

"What occult blood test are you going to do... just do it!"

"But I have to declare in advance—"

"I do have human blood on my hands."

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

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

There is no need for any luminol occult blood test.

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

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

"I can walk upright and sit upright, so I'm not afraid of any inspections!"

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

And Mao Lilan frowned and reminded:

"Mr. Tanaka, don't be too happy."

"Using your own blood to cover the blood of the dead is useless."

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

"Oh..." Tomoshi Tanaka sneered, "Then check it out!"

"By the way... I have to remind you, young lady forensic doctor."

"Even if the DNA test result of the blood sample taken from my hand is the same as that of my brother, it cannot be explained that it is his blood."

"Eh?" Mao Lilan was slightly taken aback:

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

"Hehe." Tomoshi Tanaka's smile was filled with sarcasm:

"Miss forensic doctor, your knowledge level seems to be a little lacking."

"Didn't you see? My brother and I are twins with the same appearance."

"This..." Mao Lilan was still a little dazed.

But Naruto Asai, who has a professional medical background, reacted abruptly:

"Oops...the two of them, MZtwins."

"MZtwins?" Mao Lilan asked puzzled, "What do you mean?"

"Identical twins..."

Looking at Tomoshi Tanaka's proud smiling face, Asai'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 adults."

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

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

"According to the current identification technology, there is no way to use DNA to distinguish identical twins!"

Asai Chengshi told the chilling truth.

Upon hearing this, Mao Lilan's face changed slightly:

She finally understood why Tanaka Tomoshi was so confident.

Because he has the same DNA as the deceased.

Even if the blood sample of the deceased was extracted from his hand, and the DNA was found to be consistent with the deceased, there was no way to prove that it was the blood of the deceased.

Tomoshi Tanaka can say that it was his own nosebleed.

"What, what about this?"

Mao Lilan's expression was a bit ugly:

The murderer actually directly took advantage of the loopholes that current science and technology cannot do, making the evidence invalid!

"Ha ha."

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

"I told you, if you don't have enough evidence, don't accuse good people!"

"I have cooperated with your investigation so much, if you still can't prove that I am a murderer... then the truth is obviously that I am not a murderer at all!"

His smile was full of complacency and mockery.

And he seemed to be enjoying the pleasure of overpowering the police and leaving the investigators speechless.

But at this moment, when Tomoshi Tanaka discovered proudly that Mao Lilan and Asai Chengshi were at a loss...

A firm and powerful voice came from afar:

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

"Our Metropolitan Police Department's forensics department will have nothing to do with you?"

Lin Xinyi appeared again.

There was a fiery light in his eyes, and there was an energy in his eyes that seemed to burn all evil.

"You, what are you talking about..."

Tomoshi Tanaka's smile stopped abruptly.

"Ha ha."

Lin Xinyi returned Tomoshi Tanaka's sneer just now:

"Idiot, if you honestly hide outside and find a way to get rid of the blood on your body, we may have to spend more time on the investigation."

"But now, you actually ran back out of your wit?"

In Lin Xinyi's view, Tomoshi Tanaka is totally ordering takeout from the dung beetle——delivering shit to your door!

"Thank you so much for your cooperation!"

"Miss Mori, hurry up and take the blood sample left on Mr. Tanaka's body surface!"

He gave the order firmly in such a tone.

But Tomoshi Tanaka felt a little guilty in his heart, and said sternly:

"What's the use of extracting a blood sample?"

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

"Haha."

Lin Xinyi laughed again, which made Tanaka flustered:

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

"But a hard problem doesn't mean there's no answer."

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

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

Tomoshi Tanaka: "This..."

His originally calm and composed face lost some blood in an instant.

"idiot!"

Lin Xinyi stared sharply, and shouted loudly:

"Before I send you to prison, I will let you increase your knowledge again!"

"Do you know what is DNAmethylation?"

What he said could not be read in Japanese.

What's more, he still speaks foreign language.

Tomoshi Tanaka was stunned by this sentence.

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

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

With a serious face again, Lin Xinyi uttered a passage from heaven.

Tomoshi Tanaka was told that his heart was pounding.

At first, he thought that Lin Xinyi had made up some nonsense temporarily to deceive him on purpose.

But he never expected that Lin Xinyi would become more devoted and professional as he spoke:

"For mammals, the DNA methylation pattern is established during embryonic development and has the characteristics of relative stability, kinship specificity, proximity to SNP markers, and easy analysis of results."

"This pattern is stably maintained across cell divisions, with differences in methylation levels at individual DNA methylation sites between MZs (identical twins) exceeding even differences among unrelated individuals."

"all in all…"

Under Tomoshi Tanaka's extremely guilty gaze, Lin Xin concluded loudly and loudly:

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