His active brain was running rapidly, and the doubts that had previously appeared in his mind were being solved one by one.
At this moment, he seemed to have returned to his student days. The joy and encouragement after solving a problem, and the clarity of his brain, made him feel that he had entered the world of "omniscient".
Looking at Uye Naoki's performance, Tang Ze nodded with relief.
Tang Ze was also very pleased to see his first apprentice grow from a young and cute boy to a criminal who was now able to take charge of his own duties.
It was almost time for the other party to finish his internship, and he would have to rely on himself to handle cases by then. The promise he showed now made Tang Ze more and more reassured.
Of course, Naoki Ino couldn't understand Karasawa's mood. He was still immersed in the "enlightenment" of reasoning at the moment.
Tangze understood his state very well. After all, he often entered this state, so he had no intention of interrupting.
This feeling is rare. Every time you reach the state of "omniscience", you will gain a lot of insights, which normally takes a long time to achieve.
To put it simply, Naoki Kamei at this moment is like an "epiphany" in a martial arts novel. When it is over, his reasoning level will not be greatly improved, but it will definitely be improved than before.
With Karasawa's cooperation and guidance, Naoki Kamei finally got the answer that Karasawa had deduced.
"Shirota Uno saw Okuchi Hirobumi's murder, so he threatened him with this incident and asked him to be promoted to professor."
Uye Naoki looked excited and said, "If that's the case, then everything can be explained."
"Not only that, in order to help Hirofumi Oku exonerate himself, he actively attracted our attention and induced us to search in the direction."
Tang Ze echoed: "I have to say that this is indeed a brilliant plan."
If the real culprit is Hirobumi Okuchi, this can also explain why Shirota Uno did not know any details of the murder when he took the lie detector test.
Because the truth is exactly what he said to Tangze before, he doesn't know anything.
I have to say, this is really a clever trick.
Who would have thought that the two people who were originally incompatible with each other would actually cooperate on a murder case?
If Karasawa hadn't dug out this information from Shirota Uno's behavior and words, he seemed to be sure that he could be promoted to "professor".
Then their search direction will probably keep their sights on Daida Uno, and they will not suspect the other party's enemy Hirobumi Okuchi at all.
"Then what should we do now? Investigate the relationship between Professor Hirobumi Okuchi and Koji Koyu?"
Although Uye Naoki's expression was still excited, he remained calm: "But even if we can really find something, the most important evidence is not there, and it still cannot prove that our reasoning is correct."
"Don't worry about this, I already have an idea."
A hint of amusement flashed in Tang Ze's eyes: "In a case where two people cooperate, the most critical issue is 'trust'..."
Seeing Karasawa's malicious expression, Naoki Kamei couldn't help but shudder, and he mourned in his heart for the next two people.
Based on his understanding of Tang Ze's crime, the other party was thinking of something good at this moment.
The two prisoners were just waiting for their mentality to explode.
While Naoki Kamei secretly mourned for him, the black car drove into the distance and finally disappeared around the corner of the street.
........
Kesouyan.
This is a newly established department of the Metropolitan Police Department. To the public, this department also has a bit of science fiction color.
After all, the name is such that it is easy for people to think that there are a lot of high-tech equipment in it.
And this is indeed the case, all science here is to solve cases.
However, the security check here is also very strict, and so far not many outsiders have been able to intervene.
After all, as scientific research gradually gets on track, many dangerous goods are also concentrated in the special storage space of the research room.
For example, some poisons, or paid guns and other murder weapons.
"Unexpectedly, I was lucky enough to be the first group of outsiders to visit the "Kesouyan"."
While undergoing the security check, Daida Uno looked at Karasawa and joked: "What I didn't expect is that you are also a member of the "Kesouyan".
After all, we should be considered half of our peers, as we are both scientific researchers."
"No, my real job is actually still in criminal justice. I am just a taller person among the short ones, so I, a person with a little knowledge, was transferred to the "science search and research" job."
"Haha, then I hope you, the criminal, can launch an internal investigation to find out why the polygraph of "Kesouyan" failed so "quickly"."
Daida Uno emphasized the word "quick" and looked at Karasawa with a sneer: "Speaking of which, I remember that the policy of popularizing the "lie detector" to the Metropolitan Police Department seems to have just begun.
It’s only been a few days, and the instrument has already broken down. Do you think it’s possible that someone used it as a substandard product and took bribes?”
"We will naturally have dedicated personnel to supervise these matters, so you don't have to worry about it." Faced with Shirota Uno's strange annoyance, Karasawa ignored him.
After all, they were the ones who played the "trick" first. They had already tested the other party with a lie detector, but now they insisted that the lie detector machine was malfunctioning and asked him to come back and test again.
Tang Ze even said "politely" on the phone that if an "arrest warrant" was needed, he could apply for an "arrest warrant" first and then force him to take a test.
Under such "warm" reception, it is easy to understand why the other party would react like this.
While listening to the other party's sarcastic words, Tang Ze smiled and dealt with the other party.
The two of them walked all the way to the room where the lie detector was placed.
Although Shirota Uno said something unpleasant, he still honestly took off his coat and sat on the test chair when he got into the room.
Hiroshi Saito on the side began to press the detectors on the opponent's chest and fingers one by one.
Upfront is as always a "poker of cards" pre-check.
It's just that this time Shirota Uno drew "8", so the test seemed a bit long, and changes didn't occur until the last moment.
"This time I have to see it accurately. I really got an "8", and then the lie detector also detected my lies."
After taking the question sheet and flipping through it casually, Daida Uno looked at Karasawa standing aside and said.
"Of course, I promise that no matter what the outcome is, this will be the last time." Tangze smiled meaningfully and said, "Let's wait and see."
"That's naturally the best thing."
Daida Uno looked at Karasawa's "malicious" smile and snorted: "Let's get to the point quickly. I don't have that much time to accompany you to fool around here."
"Saito-kun, please."
Tang Ze said hello, and the other party nodded and said, "Then write it down and start testing."
"Did you know that Koji Kaoyu is wearing black clothes?"
"have no idea."
"Did you know that Koji Kaoyu is wearing white clothes?"
"have no idea."
After Daida Uno chose to deny the first two questions, the lie detector test showed no fluctuations as usual.
But it seems that what Karasawa said before starting made Daida Uno a little uneasy, so every time after answering a question, his eyes unconsciously turned to the side of the image display table on the desktop.
.
Tang Ze could clearly see that every time there was no obvious change in the fluctuations, the other party would unconsciously breathe a sigh of relief.
Regarding this, Tangze still maintained a calm expression on the surface, but he was secretly laughing in his heart.
What he said before was intentional, just to put pressure on the other party.
And as to why do this?
That is of course for the follow-up plan.
The questioning continued, and Hiroshi Saito quickly asked the third question.
"Did you know that Koji Kaoyu is wearing yellow clothes?"
"have no idea."
When Tian Yuye answered for the third time, he answered as always, "I don't know." But the result was that the red line that had been flat before on the lie detector suddenly rose by several points.
That dazzling red color instantly changed Daida Uno's expression. He didn't know why the red line suddenly rose, but he began to panic inside.
But the panic in his heart made his mind even more confused. A lie detector detects people based on their physiological reactions.
Now, he will be suspected!
But Shirota Uno's panic could not change anything. Saito Hiroshi asked the next question as usual.
He answered mechanically, his mind constantly thinking about the events that had happened before.
Soon all the colors for the first question were asked, and then came the second question.
"Next question, start asking."
Hiroshi Saito did not give Uno any buffer space, and immediately asked the second question.
"Did you know that the prisoner strangled Xiaoji Xiangyu to death with his bare hands?"
"have no idea."
"Did you know that the prisoner strangled Xiaojixiangyu with a rope?"
"have no idea."
After answering the second question, the pointer began to swing violently again, which made Uno Daida, who was peeking from the side, dumbfounded.
On the other side, Hiroshi Saito also discovered this abnormal situation, looked at Daida Uno and said in surprise: "There are irregular records again."
"The clothes were yellow and the murder weapon was a rope. When there were only these two questions, the needle swung significantly."
Karasawa came to Daida Uno and looked at him condescendingly: "This is news that has been blocked at present, and only those related to the case know it.
In other words, apart from us, the police, only the prisoners know!"
After speaking, Karasawa grabbed Daida Uno's tie and asked with sharp eyes: "Tell me! Did you do it!!"
"Impossible! There is something wrong with this instrument!"
Daida Uno jumped up like a wild dog whose tail was stepped on, and struggled to remove the instruments on his body.
"There can be no problem. We have specially prepared a brand new lie detector."
On the side, Hiroshi Saito was sorting out the lie detectors that had been randomly thrown on the table, and answered Shirota Uno's questions like a researcher repeating the results of an experiment.
And this kind of tone that seemed to seal the coffin and just record the observation results made Daida Uno panic instantly.
For a moment, he even felt like he was conducting an experiment.
What is different this time is that he is not the observer and recorder, but the experiment and the observed.
"It's you who lied, Mr. Daida."
Looking at Shirota Uno who was trembling and panicked, Karasawa shouted in a deep voice: "Did you kill Koji Kaoyu!"
"No! I just saw it!!"
Under Karasawa's constant questioning, Daida Uno blurted out a loud rebuttal.
The next moment, the room fell into an eerie silence.
Daida Uno's eyes were wide open but without any focus. Apparently he also realized what he said.
"Tell me, what did you see?" Karasawa looked at Daita Uno's stunned face and sneered, "Tell me, what did you do?"
"……."
Facing Karasawa's words, Daida Uno just looked ahead blankly without any other reaction at all.
At this moment, the door was suddenly opened, and the huge sound made Daida Uno tremble. It also showed how "unkind" the person who opened the door was.
Of course, this "come with bad intentions" is directed at Daida Uno.
"Mr. Daida, did you see that Professor Hirobumi Okuchi was threatened by Koji Koyu?"
Officer Megure took out an "Abortion Surgery Consent Form" that had already been authenticated and said, "We have found out that Koji Koyu had an abortion a month ago, and the signature on the consent form is consistent with Hiruben Ochi's handwriting.
"
"Is there any need to hide it?"
Karasawa patted Daida Uno on the shoulder and said: "Do you think you encouraged Hirobumi Okuchi to kill people and used the condition of exonerating him to get him to agree to your promotion to "professor"? We didn't know about it?
In fact, Professor Hirofen Okuchi has already recruited them all."
After hearing Karasawa's words, Daida Uno's face showed a look of despair for a moment, but he soon regretted it, and emotions such as fear kept changing on his face.
The mixture of various emotions seemed to make Daida Uno's mentality collapse. At this moment, when he looked at Karasawa, he suddenly laughed.
Tang Ze looked at the smile on his face and was not angry, but looked at him with the same smile.
"Haha...hahahaha..."
Amidst the increasingly complimentary laughter, Daida Uno seemed to have been suddenly drained of all his strength. He stumbled back and fell onto the table and chair behind him.
Karasawa stepped forward, using the hands of the chair to examine Daida Uno, waiting for the other party to speak.
"wrong…"
After a moment of silence, Daida Uno looked at Karasawa and spoke: "Actually, it is somewhat different from the facts. It was Professor Okuchi who wanted to kill Koji Koyu.
I know, after all, he is just that kind of person, despicable, shameless and not worthy of being a scientific researcher."
Along with Daida Uno's description, all the truth of the case slowly emerged before everyone's eyes.