Chapter 2429

Yun Shishi overturns this saying, "as long as we investigate, we should be able to find some clues?"?! There should be no one on the second floor except Lu Jingtian and the prisoners. "

Lu Bosheng and Yun's poems look at each other and stop talking.

However, he said, "the second floor of the bar is not empty all the time. It's just at that stage. There are fewer people."

Lu Bosheng nodded, "but there were only a few people at that time. When Tian Tian arrived at the bar, it was already midnight, and the guests all ran to the dance floor. Before that, the bar was singing folk songs. At this time, there was no one on the dance floor. Except some guests took the lead in occupying the seats, the rest went upstairs. Upstairs, many guests were drinking and listening to songs. But the waiter has been upstairs once. She brought the man a cup of herbal tea. She also watched the black clad guest take the cup and drink it directly. "

Yunshishi twisted her eyebrows, walked to one side, deliberated over and over again, then turned around and said with great determination, "in this case, according to the truth, her fingerprints should be left on the cup! Glass is a very good 'fingerprint collector', more than one should be left! "

Lu Bosheng was a little desperate. He closed his eyes and murmured, "it's only when I find out if I don't have one, that I'll find it very strange."

"Has it been wiped off?"

Yunshishi said, "I've seen one. I don't know whether it's true or not. I heard that with hydrochloric acid, fingerprints can be wiped off."

Lu Mu was shocked.

But Lu Bosheng said, "the police only said that if she touched the cup, even if she wiped it with hydrochloric acid, she could get even incomplete fingerprints through technical means, which is a basic clue. Today's criminal investigation technology is very developed. Unlike before, there are few outstanding cases on hold. Basically, they will be solved in a few days. Even if the killer escaped the lie detector, he could not escape the evidence left at the scene. ——Moreover, if she wipes it with hydrochloric acid, it proves that the cup has been wiped. But a lot of people's fingerprints were extracted from the surface of the cup by the police's technicians, but only her fingerprints were not extracted. "

Yun Shishi is shocked.

"Only she wasn't picked up?!"

"Well."

Yunshishi is surprised and says, "how can it be?! Didn't the waiter watch her drink with her own eyes?! If so, even if we can't find the fingerprints, we can also find the residual saliva, right

"Almost impossible. Even provincial forensic agencies do not have this capability. DNA identification needs to be measured. If it is less, it cannot be done. "

Yun Shishi is shocked severely.

"It's incredible..."

Suddenly, what came to Mu Yazhe's mind was, "there is only one possibility that fingerprint can't be extracted."

"What's the possibility?" he said, his eyes widened

"Destroy fingerprints."

"Destroy fingerprints?"

Yunshishi suddenly laughs and says, "if it is cut with a knife, even so, the fingerprint will not be completely damaged..."

Suddenly, muyazhe interrupts her words and casually says, "if you are cut to the abdomen, it will be different."

Cloud poetry, " Cut?! Do you mean to cut with a knife? "

Cut a piece of meat from your fingers?!

How painful is it?!