I'm Not a Detective

Before DNA detection technology was widely used in the field of criminal investigation, fingerprints were the well-deserved "number one criminal evidence".

Therefore, the Japanese National Police Agency has been trying to establish a nationwide fingerprint database since the early 19th century. However, this matter is too difficult. There are even some disputes over the privacy rights of ordinary people in Japan. Currently, the Japanese National Police Agency Only fingerprints of criminal offenders can be collected.

In other words, the fingerprints of anyone who has committed a crime are in the police fingerprint database and can be identified by the second-generation "infrared area distributed photosensitive fingerprint comparison system".

The current efficiency is a bit low, and it cannot completely get rid of manual work. The system can only select similar fingerprints from the fingerprint database through regional key point comparison, and the final step of confirmation still needs to be completed manually.

If we want to improve efficiency, we can only wait for the further development of electronic computer technology. It will probably not be until the beginning of the 21st century, around 2003, that all this work will be completed by computers.

But it’s almost enough now. This is how Kikuma Kuji was identified by comparison. A large number of fingerprints were found in Sugata Yukio’s study, excluding the Sukada family. Among the unfamiliar fingerprints, only Kikuma Kuji’s fingerprints were compared and identified— —On a Western clock placed on the desk, which has more decorative significance than practical significance.

Wearing white gloves, Takeshi Nanahara carefully picked up the Western clock and looked at it repeatedly for a while. He found that the small clock was working normally and displayed the current time. Although it looked exquisite and unique and had some age, it was not an antique and its market price was about 10,000 yen.

Seeing Liuli standing on tiptoes, Qing watched for a while and asked in a low voice: "Is there anything wrong?"

Takeshi Nanahara twisted the clockwork, then opened the back cover of the small Western clock and took a look at the mechanical structure inside. He shook his head and said, "I don't see anything wrong with it. It's just an ordinary ornament."

"Then why does it have Hisashi Kikuma's fingerprints on it?" Qingmi Ruri said inexplicably, "In this room, only the clock has his fingerprints on it. He must have something to do with this clock."

Takeshi Nanahara put down the small Western clock, looked at the study, picked up the fingerprint comparison report, looked at it, and said thoughtfully: "It may not have anything to do with this clock."

"Why?" Qingjian Liuli asked as he picked up the small clock and began to study it.

"The desks and chairs in the study must have been wiped frequently. Even if he left fingerprints, they should have been wiped off long ago." Takeshi Nanahara made a gesture of holding the clock. "From the fingerprint comparison report, the fingerprints on the clock are only the thumb and The little finger looks more like a remnant after daily wiping, so it may not be the only thing Hisashi Kikuma moved."

Qingjian Liuli thought about it and felt that what he said was not unreasonable.

It seems that Yukio Sugata often stays in the study, and this is even the place where he chats with his friends. For example, if the desks and chairs are wiped not only every day, but every two or three days, they will definitely be wiped. If there are fingerprints, they will not be saved. This clock has a unique shape and is not particularly important. If you wipe it casually, it will leave some fingerprints.

But she thought about it and asked Nanabahara Takeshi: "But we shouldn't stay for more than five years, right?"

Takeshi Nanahara nodded: "This is indeed a bit strange. There is a high probability that he has been here recently."

Qing Jian Liuli was a little confused and murmured: "Did Sister Eri remember wrongly that he was not actually dead? But he is still a serious criminal. He should be in prison even if he is not dead. How could he come here?"

As soon as she finished speaking, Nakano Eri, who had just called to verify the situation, came back with a very serious face and said directly: "I called and asked. Five and a half years ago, Kikuma Kuji did die in the detention center while awaiting trial. Here, the cause of death is also cyanide poisoning, and I have asked someone to get the case files from that year to see what happened."

There is no problem with her memory. Theoretically speaking, Kikuma Kuji is indeed dead, and there was a lot of trouble that year.

It's not uncommon for prisoners to commit suicide. It's nothing like hanging. There will always be one or two every once in a while. But committing suicide by taking poison while in custody is a big problem. Where did this highly toxic substance come from? It took a long time to find out, even in the end Nothing was found, but many people were still punished in the detention center.

Now the problem is more serious. The dead prisoner has reappeared. Could it be that he faked his death to escape?

If something like this really happened, it would be impossible to make it a big deal and make it a trivial matter. Many police officers at the detention center might go to jail for this.

Nanahara thought for a moment and said, "I'm going to meet the victim's family first." This case is indeed a bit troublesome, so let's go see if Kasuda's own family committed the crime first, and then talk about "resurrection from the dead."

"Okay." Nakano Eri had no objection, "I'll go ask the detention center again and find out about the situation of Kikuma Kyuji in the detention center at that time."

Let’s first ask from the side. We can’t reveal the possibility of Kikuma Hisashi being alive for the time being, so as not to cause other troubles.

If it is true, something big is going to happen to the Hirano Judicial Police!

She turned around and left again, while Takeshi Nanahara and Ruri Qingmi went to the living room of the villa. Yukio Suda's wife Sayoko Suda, servant Mitsuko Aseda, and Yukio Suda's daughter Mai Sugada were being asked to temporarily Stay here - there is a female police officer accompanying them, or monitoring them, and the forensics department is still searching around the villa!

Sayoko Sugata is in her forties. She has not gained weight in middle age and has maintained a good figure and appearance. However, her face is pale now, her eyes are red and swollen from crying, and she is sitting on the sofa in a daze.

Her daughter Sukada Mai was sitting in a wheelchair next to the sofa. She reached out and gently held one of Sukada Sayoko's hands, silently sharing her sorrow.

The servant Mitsuko Aseda looked to be in her thirties, and her face was also pale. She probably didn't expect such a tragedy to happen to her employer's house, her eyes were filled with panic, and she was wringing her hands desperately.

She was the first to notice that Nanabahara-san was coming, and quickly stood up and reminded: "Madam, Miss Mai, that... Nanabahara-san is here."

Takeshi Nanabahara is now considered a minor celebrity in Hirano. After all, when he has nothing to do, he collaborates with that unscrupulous little reporter Sanae Takura to publish soft articles in newspapers to brag about himself. Recently, he has become even more active, posting x-words to mysterious people in newspapers every now and then. Although the dirty water did not make the mysterious person X get angry and attack him, his reputation was really improved a lot.

Of course, he is not so famous that he can be recognized at a glance on the street. In fact, he is not as famous as some wild idols in Hirano. The main reason is that he and Qingmi Ruri, a pair of high school students, came to the murder scene a little strangely. The three people just asked the accompanying female police officer and found out that he was a senior adviser to the police station.

Mrs. Sugada and Mai Sugada both came to their senses and looked at Takeshi Nanabahara and Ruri Kiyomi.

Qin Yuanwu said warmly: "Madam, please forgive me."

Mrs. Sugada's tears instantly flowed down again, and she choked with sobs and couldn't speak. It seemed that the couple had a good relationship. Mai Sugada sat in a wheelchair, bent slightly and said for her mother: "Thank you."

Qingmi Ruri also bent down slightly to return the greeting. He raised his head and took a closer look at Sugada Mai. He found that she looked about thirteen or fourteen years old, with a slender figure. She was wearing a clean and tidy school uniform. She had long, beautiful black hair and bangs. Very neatly groomed.

Her skin is very white and tender, her eyes are big, and her eyelashes are very long. She just cried. Now her eye circles are a little red but watery. With her eyes slightly lowered, she looks pitiful, like a large Japanese doll - if it were changed Wearing a kimono and not sitting in a wheelchair, Sugada Mai looks like a Japanese doll from appearance to temperament.

Qing Jian Liuli only glanced at her. Even for a girl, she couldn't help but feel pity. She felt a little sorry for the fact that she had to use a wheelchair at such a young age. She also felt sorry for her that her life had been so difficult and she had to suffer death at such a young age. Father's pain.

Takeshi Nanahara glanced at Mai Sugada, gave her a gentle smile, then turned to Mrs. Sugada and said, "Sorry, ma'am, if it's convenient, I need to ask a few questions."

I had already made a record before, but Sayoko Sugada was the wife of a retired criminal police officer after all. She understood that it was normal to be questioned repeatedly when encountering a case. She wiped her tears and said, "Excuse me."

"Did you discover that Sugata-san was killed?"

"Yes, Yaguchi-san called to ask..." Mrs. Sugada choked up again when she said this, "I came to ask him if he wanted to go fishing together on the weekend. I went to the study to find him to answer the phone, but as soon as I opened the door, he saw Until he fell to the ground. At that time, I thought he had another heart attack, so I quickly asked Manzi to get medicine, but when I went over to take a look, I found him... Later, I asked Manzi to call the police."

"Have you touched the body?"

"I'm sorry, I moved, but not too much. I heard him talk about some cases handled by the criminal police before. I was only sure that he was indeed... gone, and then he didn't do anything else." Mrs. Sugada started again. Wiping tears, her husband's mouth and nose were bleeding, and the whites of his eyes were bloodshot. It was nothing like a heart attack. It looked like he had been poisoned and died, and there was no need to call an ambulance.

Takeshi Nanabahara turned to look at his servant Mitsuko Aseda and asked, "Were you the second to arrive at the scene of the crime?"

Mitsuko Asae's face turned even paler, she wrung her hands and said tremblingly, "Yes."

"Where were you before?"

"I was washing dishes in the kitchen." Mitsuko Asae's voice was still trembling, "I heard my wife screaming and ran up. As soon as I entered the door, I heard my wife saying that the master has been poisoned and call the police. I hurried to call 110. After the call, 110 I just went back upstairs to stay with my wife."

Takeshi Takeshi took a closer look at her face, then turned to Mai Sukada and asked, "Where was Sukada-san at that time?"

Sugada Mai was getting tissues for Sugada Sayoko, with red eyes, she replied: "I wasn't at home at the time, I was at school all day, and I didn't know until I got home after school in the afternoon...I knew that my father was gone. , and then I stayed here with my mother."

Takeshi Nanahara looked at her facial expression carefully, then turned to the servant Mitsuko Aseda and asked, "Did you prepare the tea?"

Asakusa trembled and said in a thick nasal voice: "Yes, I prepared it. The master took it up by himself, but...but I didn't poison it. I really didn't poison it. I have worked here for more than seven years." It won’t harm anyone, please investigate clearly, it’s really not me!”

Mrs. Sugada seemed to have reacted just now, looking at Mitsuko Asae blankly, while Takeshi Nanabahara nodded and said: "Don't worry, we will definitely investigate."

Mitsuko Asae looked at Mrs. Sugada cautiously, choked up and nodded: "Please, please investigate clearly. I won't harm anyone, I didn't do anything."

She was so scared. Sitting here all afternoon, she had already recalled a series of unjust, false and wrongful cases in the TV series. After all, she really made that cup of tea. She was the most like a murderer. She was very afraid that the police would think that she was the one who poisoned her.

Takeshi Nanahara reassured her and asked, "Has anyone been here today?"

"No." Mitsuko Asae said immediately, "From the time Miss Mai went to school in the morning until the police arrived, the door was never opened."

Takeshi Nanahara looked at Mrs. Sugada again, and Mrs. Sugada nodded subconsciously, proving that she was right. No one had entered this small villa before the incident, at least she didn't see or hear anyone. Outsiders have come in.

But her sadness subsided a little now, and she came to her senses. At that time, there were only three people in the small villa. Now that her husband is dead, and she was not the one who poisoned her, the only one left is the servant Mitsuko Aseda. but……

However, she couldn't figure out why Asae Mitsuko would poison her husband and kill her husband. After spending so many years together, she knew Asae Mitsuko's character and felt that she was not the kind of person with malicious intentions.

There are only two suspects, and there is no one else!

She asked Mitsuko Asae blankly: "Is it really not you, Mitsuko?"

"It's really not me, I won't harm anyone." Mitsuko Asae became more and more frightened, looked at Mrs. Sugada, and said in a trembling voice, "Isn't it you, madam?"

Nakano Eri and others will definitely not inform them about the investigation of the case. Now these two people only know that Yukio Sugata was poisoned and died. They instinctively doubt the cup of tea. Although the cup of tea was brewed by Mitsuko Asae, Mitsuru Asae made it. I can't guarantee whether Suda Sayoko took advantage of her not paying attention and added some ingredients or something.

After all, there were only two suspects. If it wasn't her, it must be Sayoko Sugada who murdered her husband.

Mrs. Sugada was stunned for a moment and said painfully: "How could I do that? We have been married for more than ten years..."

Mitsuko Asae opened her mouth and had nothing to say for a moment.

She felt that there was no one else but Sayoko Sugata, but...she couldn't figure out why Sayoko poisoned her husband. Normally, the two of them seemed to have a good relationship, and Sayoko's character didn't seem to have the courage to kill someone. .

Sugada Mai sat in a wheelchair, held the hands of two people respectively, and said with tears: "Mother, Aunt Mitsuko, please don't do this. I believe it's not you, there must be other reasons."

Takeshi Nanahara sat aside and looked at the three people, and said softly: "Yes, the facts are not clear now, and there is no point in being suspicious of each other. Please believe that the police...or me will investigate clearly, so please don't worry."

Mrs. Sugada and Mitsuko Asae both nodded with tears in their eyes and choked up in unison: "Then please."

Takeshi Nanabahara then asked about Yukio Sugata's daily life, friends, and the financial situation of the Sugada family, and Mrs. Sugata and Mitsuko Asae answered honestly.

Yukio Sugata has recovered from his illness and suffered from heart disease. However, he does not stay at home and does not go out. He joins several clubs and participates in various activities from fishing and flower gardening to playing chess and reading. From time to time, I also do charity activities and have many hobbies.

The financial situation of the Sugata family is also very good. The family is quite rich. They have no luxury goods and no one gambles or goes to whoring. In terms of money, they don't have much worries.

If money problems are not big, the family atmosphere will be more harmonious, and there will be no conflicts in life, including the servants.

Takeshi Nanabahara asked around carefully, but couldn't find any questions. After pondering for a moment, he asked: "In the past month or two, who has visited Sugata-san and been received by Sugata-san in the study?"

"Shikatori-san, Shido-san, Yaguchi-san, Mr. Takamiya, Ito-san..." Mrs. Sugada immediately reported a list of people. Sugata Yukio had many hobbies and many friends, and his old colleagues would come to visit him occasionally. He chatted, "They usually go to the study room to chat. Sometimes four or five come at a time. There should be a few more, but I can't remember the time clearly."

"There are also Ota-san, Seta-san, and Anzawa-san. The police station occasionally sends people to visit..." As a servant, Asae Mitsuko added five or six more people, some of whom had eaten or eaten at Suda's house. It was a staycation.

"Uncle Furuba and uncle Furuya also came here." Daughter Sugada Mai also recalled, "Uncle Furuba often came to play chess with my father, and Father Futase from the church also brought people here."

There were quite a few people. Takeshi Nanabahara turned around and asked someone to bring a pen and paper, and said, "Then please recall the three of you and make a list!"

Without finding out who poisoned him, Kikuma Kuji's "resurrection from the dead" becomes even more suspicious. He must have been to Sugata Yukio's study in the recent past - fingerprints also have a shelf life and will gradually fade over time. Decomposition is blurry, very dependent on the environment and attached materials.

As long as there is no harsh objective environment (heavy rain, exposure, etc.) or man-made damage (erasure, covering, etc.), fingerprints can usually exist naturally for three days to several years depending on the material they are attached to.

For example, if you press a random finger on an indoor wall, the fingerprint may not be identifiable within a day or two;

By changing the material such as glass or mirror, the shelf life of fingerprints can be extended by weeks or even months;

If the paper is replaced, the time can be longer, it may be half a year to several years, depending on what kind of paper it is - if the fingerprint is caught in a book, or on a page in a document, or is placed in an insurance policy In the cabinet, it is possible to identify it after two or three years.

At the same time, it is also necessary to distinguish between people. Some people have sweaty hands or high oil secretion on their hands, and the shelf life of fingerprints will be extended simultaneously. If it is stained with viscous liquids such as blood, it will be more reliable and can still be used to identify people for several years or even more than ten years.

The shelf life of fingerprints needs to be analyzed on a case-by-case basis. In this case, the casing of the small Western clock is made of smooth metal and it is in a study room that is not too ventilated. Takeshi Nanabahara estimates that the shelf life of fingerprints should be within two months, so by the way Ask anyone who has been to the study room in the past two months, but there is no need to explain in detail.

The three members of the Sugada family had no objection and began to write the list. He then got up and walked to the Sugada family's kitchen to continue his investigation.

Qingjian Liuli followed him, still wondering who was responsible for the poison. There were only two suspects at the moment, but she listened for a long time and tried to observe the words and expressions. In the end, she didn't find out who was more suspected.

The servant Asae Mitsuko was very scared, but the fear didn't seem like a guilty conscience, it was more like scaring herself, fearing that she would be wronged.

Although his wife Suda Sayoko was not afraid that she would be wronged, she looked like she was too sad and did not think of it for a moment, or she did not think of the possibility of being a murderer at all, and she did not look like she had poisoned her husband. .

Not to mention her daughter Sugada Mai. She said she was in school. I think a large number of classmates could prove that she could not tell such a lie that could be easily exposed. The case had nothing to do with her.

If an outsider committed the crime, the study window was locked from the inside. She and Takeshi Nanahara checked and found no problem. Only the study door could be accessed, but the two women were on the first floor, one in the living room and one in the kitchen. There were people. It's impossible for them to miss it from the first floor to the second floor...

Maybe you should check other rooms on the second floor. Maybe someone sneaked in from the back of the villa through the windows of other rooms, went straight to the second floor, entered the study and fed Yukio Sukata poison.

But this is hard to explain. Sugata Yukio is not a three-year-old child. If someone sneaks in secretly to give him poison, or gives him a piece of candy or a piece of cake, he can't eat it without saying a word, right?

Or knock him unconscious and force-feed him? But the door on the back of the desk is impossible to detect if someone opens the door. Not to mention a senior former criminal police officer, even ordinary people cannot be successfully attacked.

Moreover, it can knock people out, and it makes no sense to feed them poison. Wouldn't it be better to just stab them a few times?

The key lies in how the murderer poisoned him!

Qingjian Liuli's thoughts were overloaded, and he couldn't think of a possible method. He could only rely on Qian Yuanwu to figure it out. When he had a preliminary idea, he would say a few words.

As a heroine, you don’t have to do everything yourself, you just need to wake up the hero at critical moments.

Hope he can find something!