The test took a long time, and with Naoto Yoshiwara's stupid answer - this was not Nana Hoshino's prejudice, Naoto Yoshihara who was locked up in the interrogation room was a little dumber than usual.

With Naoto Yoshihara's answer, Nana Hoshino looked at the data displayed on the microcomputer, and her heart slowly settled.

Professional polygraph interrogations are not conducted by direct questioning, let alone a battle of wits between two people, as in the movie, but is the result of artistic exaggeration, in fact, formal and professional interrogation is done by the mechanical sound of a computer - the emotionless mechanical sound can reduce errors, and the real interrogator does not show up at all, and enters it manually in another room.

The questions asked are also formed by the selected templates in the question bank in combination with the actual situation, and casual questions are not allowed. If two people were to fight each other, and the verbal confrontation there would stir up a spark of intellect - it would look beautiful, but the result would be unrecognized.

According to the formal operation of polygraphy, it is to first conduct an irrelevant test on the person being tested - ask questions that are not related to the case, some common sense and cold knowledge as normal emotional values, and then ask control questions, questions that are not related to the case but will cause emotional fluctuations, mostly negative, as reference values, and then the key questions related to the case, and finally the scientific results.

The whole process is very cumbersome, so the test time will be very long, and the cost of all aspects is also extremely high, so it is easy not to use.

If it weren't for Nishikujo Ruri's willfulness and great background, although Naoto Yoshihara killed three people, he would not have enjoyed professional polygraphing.

The light in the interrogation room was changed to soft, and Naoto Yoshiwara had electrodes attached to his arms and neck, and his hands were fixed to the sensors, answering questions at will—

"Name?"

"Naoto Yoshihara. ”

"Gender?"

"Male. ”

"Is it Muyao Day?"

"Yes. ”

"Is the sixth year of Heisei 1993?"

"This ......" Naoto Yoshihara was stunned for a moment, and said stupidly, "It's 94 years, I'm a little unsure if I asked so suddenly." No, it should have been 1994. ”

"Who is Oda Gen from?"

"I ...... I do not know. Genji?Kiyoji?"

......

"Did you ever steal as a child?"

"Is stealing sweet potatoes counted?

"What's the most guilt-free behavior you've ever felt guilty about?"

"Alas, I failed to be filial to my parents. ”

"Have you ever fallen out of love?"

"No, I'm not in a relationship. ”

......

"Why did you attack the other party at that time?"

After more than an hour of questioning, Naoto Yoshiwara looked even lazier, scratched his chin with one hand and thought about it and replied: "They are foul language to my friends, and one of my friends is injured and the other is too small, so I stepped forward to stop him...... I was very polite, but he stabbed me with a knife, and I fought back, but I didn't expect to stab him to death, and then they tried to cut me and kill me, so I resisted, and they all died. ”

"Do you have any military experience?"

"Nope. ”

"Do you have a history of X disease?"

"No, of course not!"

"Do you have a record of breaking the law?"

"No, I'm always law-abiding. ”

"Do you have a history of drug use?"

"No, I don't touch that. ”

"Have you ever been involved in drug trafficking?"

"Nope. ”

"Did you kill anyone before today?"

"No, I haven't killed anyone before. ”

......

Entering the critical issue stage, Ruri Nishikujo looked at the real-time data displayed on the computer screen, and the green light representing no anomaly kept flashing, and even the staff around her couldn't help but praise: "The stability rate is 96%, which is really rare! This person is so honest, and he doesn't dare to hide his privacy issues, probably because he is worried that he will really be treated as a criminal! His various indices almost did not fluctuate...... It is impossible for such a person to sin!"

Listening to the meaning of his words, he has already decided that Naoto Yoshihara's crime is a fantasy.

This staff member does not belong to the West Kujo glass pipe, and is engaged in technical work, that is, there is one to say one, there is two to say two, and he does not look at the tractor head next to him with a faint face.

And Nana Hoshino felt that the dark clouds above her head had all dispersed, the sun was shining, and her mood was so good that she couldn't do it - Shiro was worried, and she had already said that it was impossible for her mother to make a bad guy by her side!

This guy is innocent and innocent......

Why, then, should an innocent person accept such an insult?!

She stood up, stared at Ruri Nishikujo with her small chin and said, "We won't accept this kind of insult in vain, Nishikujo Police Department, you're in big trouble, it's not so easy to forget it, you wait!"

Nishikujo Ruri glanced at Nana Hoshino, turned his head and asked the staff, "Is the instrument working properly?"

The staff replied directly: "Of course, the Nishikujo Police Department, what's the matter, don't you agree with this result?" He paused, looked at Naoto Yoshihara in the interrogation room, and said with some embarrassment: "There are indeed examples of murderers passing polygraphs, such as the murderer in the Green River murder case in the United States who passed the polygraph test, but that is only a very small number of exceptions, and it is also because the accuracy of polygraph instruments in the past was not enough, but now it ......"

Nana Hoshino laughed directly beside him: "What's the matter? The Nishikujo Police Department, without evidence, suspects innocent people, and forces innocent people to accept polygraphs, and now that the polygraph has passed, they are still not satisfied, are they going to plant false accusations in the next step? If you can't solve the case without the ability, you have to take innocent people to blame, just for you to be promoted?"

At the end, she shouted, "Stop your despicable behavior now, Nishikujo Police Department! You are really the scum of the police!"

Nishikujo Ruri took a deep breath, and looked at the staff next to him with a strange gaze, and was about to say something, Kitagawa Jiro entered the door, and said directly into her ear: "The section leader called and asked the team leader what he wanted to do?"

Nishikujo Ruri was silent for a while, the two sword eyebrows slowly flattened, and after half a sound, he ordered: "Remove the instrument and invite Yoshihara-san to my office." ”

She felt that she had miscalculated, and never expected that the polygraph would get nothing—the polygraph application is relatively widespread. For example, if two suspects who are caught committing a joint crime cannot match their confessions, they can directly go to the polygraph to easily distinguish the false confession and the head, which is convenient for prosecution and sentencing.

Another example is if a suspect is found, but there is no key evidence for a while, what should I do? Go to the polygraph, through the suspect's state of psychological fluctuations, such as asking questions such as "Has the murder weapon been destroyed?", "Has it been thrown into the water?", and other narrowed questions, and there is no need to work hard to find evidence......

I don't use this thing in detective films because it's boring, how can the plot be ups and downs with this thing?

Although it is very troublesome to use, it is not difficult to apply for some big and important cases. Only this time, she never expected that she would find nothing - just an ordinary person tied to a lie detector can ask a little bit of illegal deeds.

Kitagawa Jiro let out a sigh of relief, the section chief had three points of scruples about Nishikujo Ruri's background-maybe in seven or eight years, Nishikujo Ruri would be the section chief's superior--he had always spoken more politely, but not like that to himself...... I was already scolded on the phone just now, but I can understand the section chief's worries - if I really dig up any major cases, it's fine, if I don't dig up, then the ordinary case will become a big storm, and the news media will add a few more fires, and the head of the section leader must be beaten out of his dog brain.

Seeing that the head of the group was finally about to give up, he hurriedly ran to pass the order - this is fate, who let himself not be reincarnated, and he didn't study hard enough at the beginning!

Nishikujo Ruri wanted to hold Nana Hoshino's hand again—she was very tolerant of Nana Hoshino, and Nana Hoshino scolded her and she wasn't angry—but Nana Hoshino refused, so she just took her back to the office, and said on the way: "The polygraph has imperfections, and it also involves the RQ issue, I can't control how to deal with it in court, but as a police officer, it is enough to be able to use this instrument to distinguish confessions and circle the suspects! Now that Yoshihara-san has passed the test, I have no other evidence...... I will apologize and make amends to him. ”

She is proud, although very unexpected, but not so untrustworthy that she will break her word.

She stuffed a business card to Nana Hoshino as she spoke, "But there's definitely something wrong with that man, call me if you have anything!"

It's not the time since she first came, Naoto Yoshiwara has proven his innocence through the instrument test, so what is the lack of Nana Hoshino? She sneered a few times, and didn't tear it up after playing with the business card for a while, Uesugi Xiang's tutor didn't allow her to do this kind of thing, but she just threw it back to Ruri Nishikujo.

The expression on his face was very disdainful, and it was clear that he refused to accept this kindness.

Ruri Nishikujo silently took back the business card and didn't force her. The two returned to the office. After waiting for a while, Naoto Yoshiwara with a smile on his face was brought.

He didn't look angry at all, he was quite happy when he saw Nishikujo Ruri, and he patted his ass when he sat down: "Ah, Nishikujo Police Department is really hard, I haven't gotten off work after such a night, I'm really a model in the police world, I'm so relieved to have someone like you protect us!"

His mouth was full of sound, and his tone was sincere, as if he was about to burst into tears.