Tokyo Police

Sakurada Gate Station, as the working hours approached, a large number of people wearing monotonous professional suits poured out from here, starting a busy day. Nine out of ten office workers who came out of Sakurada Gate Station at this time are enviable civil servants, and they are the most enviable group of civil servants working in Chiyoda Ward in the RB bureaucracy.

A petite beauty walked out of Sakurada Gate Station and stopped by the roadside waiting for the end of the red light. Perhaps because of her outstanding looks, many men secretly looked at this charming woman from time to time. Beauty seems to have gotten used to it. She sorted out her clothes, took out the badge from her pocket and hung it around her neck. If anyone can see the content on the badge at this time, they will definitely feel sorry for such a beautiful woman. Because it had the words "Forensic Researcher, Forensic Researcher" in the Criminal Division of the Metropolitan Police Department, in the title column.

The long red light finally came to an end. Chiyo Tanaka stepped on high heels across the road, and there was a rhythmic rhythm of the heels hitting the ground. After crossing Sakurada Avenue from Sakurada Gate Station, and walking back a few hundred meters is the Metropolitan Police Department. Chiyo followed the crowd into the building, swiped his card through the gate in the lobby, and took the elevator to his floor. At this moment, a familiar voice suddenly came from behind.

"Chiyo-chan, oh ha!"

"Yuriko! You finally don't have to be late today?"

Chiyo Tanaka greeted her happily when she saw Yuriko who joined the Metropolitan Police Department in the same class as her.

"My boyfriend sent it to me, Chiyo-chan, how was the friendship yesterday?" Yuriko asked gossip.

"Deep blow! As soon as I heard that I was a forensic researcher, the atmosphere on the scene changed! I swear I will never participate in the association again!" Chiyo Tanaka said with a long sigh.

"Oh! Chiyo-chan is so pitiful, why are you working at the Metropolitan Police Department, but your fate is so different!" Yuriko raised her left hand to show off in front of Tanaka Chiyo. Yuriko was showing off the diamond ring in her hand.

"Yuriko, I want to break up with you!" Chiyo said through gritted teeth.

……

After the two reached the end of the corridor, they parted ways and went back to work in their own departments. Yuriko worked in the Planning Division of the General Affairs Department. The main job content was to be responsible for the publicity and planning of the Metropolitan Police Department. To deal with, do not have to face the cold corpse.

Chiyo is not so lucky. As a forensic researcher, her job is to deal with corpses, and when faced with social interactions, most people have a taboo against the profession of forensics. So Chiyo always felt hurt. After returning home every day, Chiyo basically spends his time with a beer in one hand and a TV remote in the other.

"Chiyo, oh ha yo, how was the friendship last night?"

"Forget it, it's really... not interesting."

"Don't be discouraged, you will always meet a good man, come on Chiyo-chan!"

Chiyo met a female colleague who was also a forensic researcher in the locker room. Unexpectedly, the other party asked about the friendship last night, which made Chiyo suffer a merciless blow again.

"Oh, by the way, Chiyo-chan! It seems that there is one of your packages, and it's on your desk..." When another colleague walked in, he reminded Chiyo.

"The package? Who sent it to me?" Chiyo felt very strange, she walked out of the dressing room and came to her desk. Sure enough, I saw a delicate package. The shipping address for the package is Shimojo Village, Nagano Prefecture. Chiyo felt very strange, who sent it, and no one he knew lived in this place!

After tearing open the outer packaging of the package, Chiyo saw an exquisite gift box. The gift box is printed with words such as "Famous Things in Nagano", "Scenic Poems of Nanshinshu in Winter" and "Ichida Persimmon". There is also a small envelope attached to the gift box.

Chiyo opened the envelope and realized that these Nagano specialties were sent by Lin Shuichi. Lin Xiuyi said in the letter that he is currently investigating some things in Nagano Prefecture, and wants Chiyo to help him detect the fingerprints of a certain suspect. The sample is the business card printed with Kono Saito, professor of history and archaeology at Yamanashi University. The fingerprints that need to be compared are an unfinished case that happened 10 years ago at Buddha Temple in Yamanashi Prefecture.

"This Lin Xiuyi is not idle when he goes to 'training'!" Chiyo shook his head. For the sake of the gift, Chiyo still planned to help Lin Xiuyi.

Although it is an old case ten years ago. However, the fingerprints left on the handle have already been entered into the police information database. Once new suspects enter their fingerprints, the system will compare the fingerprints of these unsolved cases with the newly entered fingerprints. Thanks to the rapid development of science and technology~www.wuxiahere.com~ Because the extraction medium of fingerprints is paper, the ninhydrin reaction method is more suitable in this case. The principle is that sweat contains a lot of amino acids, and ninhydrin can react with amino acids to form blue-violet substances under heating conditions and weak acid environments. This kind of reaction is very Lin Min. When the ninhydrin reaction occurs, a clear fingerprint can be obtained by colorimetry with a spectrophotometer at a wavelength of 570 nm according to the depth of the blue-purple produced by the reaction.

When Lin Xiuyi received the business card, he noticed that Saito Gongwang used the thumb and forefinger of both hands to pinch the top two corners of the business card and handed it over, and Lin Xiuyi also held it in a good manner. I took it after picking the two corners below the business card. If this business card was clean before, Chiyo should be able to extract 8 fingerprints from it. And the blood fingerprints left at the scene of the murder at the Buddha Temple happened to belong to the thumb.

If Lin Xiuyi's guess is correct, the defenseless Professor Saito will be dead this time, because fingerprints can't lie. So far, if the case is considered with the motive of trespassing, Professor Saito, who has both fame and fortune, is definitely the biggest suspect.

Chiyo successfully obtained the fingerprints of 4 thumbs and 4 index fingers from the business card. Because Lin Xiuyi's fingerprints were kept on record at the Metropolitan Police Department, his fingerprints were immediately excluded. Chiyo then compared the fingerprints of the remaining two thumbs with the blood fingerprints left over from the murder at the Buddha Temple ten years ago. result……

……

After a while of shaking, Lin Xiu rolled over and got up from his seat one by one. He picked up the phone on the table. Seeing that it was sent by Chiyo, I couldn't wait to open the message.

"Ichida persimmons are delicious, but unfortunately the fingerprints don't match!"