Chapter 169: Observation

"Link, if you don't give me a satisfactory explanation, I won't mind reporting it directly, and don't blame me for saying that you are passive in solving the case."

Annoyed Gu Xiao, shouted angrily, the medical school has lost the sample of the research results this time, and he has already taken a lot of responsibility as the relevant person in charge, and he was originally pinned on the police department to be able to solve the case and chase the lost sample, but Link's current attitude of not taking things seriously makes him very angry, even if he is unwilling to solve the case, it will not be that high school student to be a shield, right?

"Emotions are always excited, but they can cause various cardiovascular and cerebrovascular diseases, and if one is not done well, the brain will explode." Jiang Hao kindly reminded Gu Xiaosheng, whose face turned the color of pig liver, took out a piece of paper named the suspect from the many materials, glanced at the name of a person listed on the paper, and reluctantly said: "Give me ten minutes to help you find the person who leaked the sample, and the other ten minutes will be said later." ”

"Okay."

Link patted Jiang Hao's shoulder excitedly, he knew that Jiang Hao would definitely not be helpless, and he didn't have the slightest doubt about Jiang Hao's ten-minute promise, because Jiang Hao has always been a person who can say and do.

"It can't be bragging, right?"

A professor of medical school looked at Jiang Hao suspiciously, all the suspects above Jiang Hao found out that the samples were robbed, because they knew the location of the samples, they had already been detained, and there was no answer after more than ten hours of interrogation, could it be that a high school student could get the suspect out in ten minutes?

"Can't you even afford to wait ten minutes?"

Jiang Hao glanced at the people in the medical school, because he found that no one in the police had doubts about his words at all, and this sense of trust made him very comfortable.

"I hope you do it."

Gu Xiaosheng squinted, his face returned to his calm and returned to his seat, signaling that the skeptical medical staff did not need to refute, because just now he suddenly discovered a fact that he couldn't even believe.

That is, Jiang Hao's seemingly casual kind reminder just now was one of the sentences in the thick information provided by the medical school, and he originally doubted whether Jiang Hao had read all the medical materials, but now it seems that Jiang Hao has not only finished reading, but also really remembered the information deeply in his mind as he said.

A thick stack of information can be successfully memorized, which shows that Jiang Hao is indeed extraordinary, maybe he can really find out who sold the sample.

"Hmm."

Jiang Hao didn't bother to continue talking nonsense, opened the door directly, strode towards the monitoring room of the interrogation room, Gu Xiaosheng followed Link out of the conference room, he wanted to see how Jiang Hao found out the ghost of the medical school.

"All suspects are monitored here."

Link simply became an introducer, pointing to the LCD screen hanging on the wall and began to introduce, the clear scene in the LCD screen is an interrogation room separated from each other, and on the chair in the interrogation room, the suspect sits on it.

"After several surprise interrogations, these people who know the hiding place of the samples of the Dao Dao have answered that they don't know about the robbery case, and they have never interrogated the slightest useful clue."

Link glanced at the boring suspects on the screen, and he had no idea where to start, according to the regulations, if he couldn't find strong evidence, the time for detention and seizure would come, and all the detainees would have to be released.

And the hiding place of the sample is indeed only known to these people, he doesn't believe that the person who robbed the bank accidentally took the sample without knowing it, and the blue and white porcelain that was deliberately exchanged in the safe also revealed that the target of the robbery was the research sample of the medical school!

The people who knew the location of the leak were among these people, but they couldn't do anything about it, which made a resolute Link very annoyed!

"We have also tested everyone with high-tech polygraphs, one by one, but the results of the test show that none of them showed the characteristics of lying.

Almost every person who faces a polygraph shows normal heartbeat, pulse, blood pressure, and body surface features. ”

A policeman immediately made a return, the polygraph is a high-tech identification tool, if even the polygraph can't test the result, then it can only explain two problems, one is that the other party is lying too true, real enough to easily deceive the polygraph.

If even a lie detector can easily deceive the past, it is almost impossible to surprise the interrogation of something!

"Lie detector?" Jiang Hao smiled disdainfully, and said nonchalantly: "The lie detector is indeed useful for many people, but after all, it is only a machine made by people, as long as it is a machine itself, it will have shortcomings.

When the polygraph is faced with people with special constitutions, it will not play any role at all, and even I know that there are many ways to avoid the polygraph, and any use of one will make the polygraph ineffective and escape the judgment of the polygraph

Perhaps one of the suspects used the method of evasion that I know and easily avoided interrogation. ”

"It's true that polygraphs aren't perfect."

Link nodded in agreement, according to science, the polygraph recognition rate is only 80%, which means that 20% of people will escape the detection of the polygraph.

"Can you tell what methods the suspect used to escape?"

Gu Xiaosheng asked a more pointed question.

"There are many ways to escape, and this is not easy to guess!"

Link immediately blocked Gu Xiaosheng's mentally retarded question for Jiang Hao, this kind of question was the same as asking the doctor why the patient was sick, it was simply unnourished to the extreme.

"Take the image of this medical school professor Shu Cheng out separately." Jiang Hao did not directly answer Gu Xiaosheng's question, but ordered the microcomputer operator to project Shu Cheng's surveillance video on the projector on the wall alone, and Shu Cheng, who was sitting quietly in the chair, was immediately presented on the huge projection cloth.

"Enlarge Shu Cheng's right hand for me." Jiang Hao continued to command the controller.

"Yes."

The controller immediately followed Jiang Hao's instructions, skillfully controlled the computer, dealt with Shu Cheng's right hand, and directly adjusted the right hand dozens of times, so that Shu Cheng's right hand filled the entire projection cloth.

"Everyone, take a closer look at Shu Cheng's right hand."

Jiang Hao reminded the puzzled people.

"It looks like the finger has been cut once, leaving a small wound."

He observed for a while, and took the lead in discovering Shu Cheng's right hand, which had a clear spot on his index finger that was obviously different from the surrounding color, and in the eyes of outsiders, the dot was just a faint spot, and there was nothing abnormal, but Gu Xiaosheng knew that only a compound miniature wound would show this kind of spot.

Gu Xiaosheng glanced at Jiang Hao, who was calm, with a calm face, and the controller magnified Shu Cheng's right hand more than ten times, so that he could observe the wound in detail, but Jiang Hao observed the strangeness of Shu Cheng's fingers in detail from the LCD screen hanging on the wall, how sharp should Jiang Hao's observation be?

Sure enough, it's not an ordinary teenager!

Gu Xiaosheng finally understood what was going on, just now in the conference room, everyone had to wait for Jiang Hao to arrive before opening a case analysis meeting!

"Sure enough, it's a wound."

Recalling the usual feeling of their wounds, everyone nodded suddenly, agreeing with Gu Xiaosheng's judgment, and casting admiring glances at Jiang Hao, such a subtle clue can be found, and the eyes are really not ordinary vicious!

"Jiang Hao, you mean that the wound helped Shu Cheng escape the judgment of the lie detector?"

Link is a little hard to be confident.

According to the data, Shu Cheng is a professor at the medical school, and his understanding of the human body is like the familiarity of the police with firearms, and the lie detector is based on the body's reaction to test and make judgments.

As a professor of medical school, Shu Cheng naturally knows how to make the body react in a special way, and avoiding the tester and stabbing a wound on his finger is undoubtedly the quickest way to escape.

When the human body is injured by stimulation, various characteristics of physical fitness will show natural abnormalities, such as rapid heartbeat, increased blood pressure, irregular heartbeat, shortness of breath, .......

All kinds of abnormal physical characteristics will interfere with the polygraph comprehensively, making the polygraph confused and unable to make normal judgments. ”

Jiang Hao explained in as much detail as possible for everyone.

"Shu Cheng turned out to be so scheming."

Shu Cheng's colleagues in the medical school were all surprised, and at the same time, they were also angry at Shu Cheng's behavior, and they sold everyone's hard work for money, so he must be punished as he deserved.

"Could it be that the wound is the means used to escape the polygraph?"

Zhang Lang glanced at the spot on Shu Cheng's right hand disapprenously, and the look of doubt on his face could be clearly felt by anyone, and he unceremoniously questioned: "The wound may be Shu Cheng's old injury, as a medical school professor, it is normal to have a little old injury on his finger." ”

"Yes."

Zhang Lang's question is also the question in Gu Xiaosheng's heart, and it cannot be ruled out at all that Shu Cheng's wound is an old wound.

"I'm just guessing, but I'm not sure it's because of the small wound."

Jiang Hao shrugged innocently, but he did find an excuse for Shu Cheng to escape the polygraph at random, Jiang Hao was not interested in what method Shu Cheng used to escape the polygraph, and when he went upstairs, the phone call of the Sakura Group Onikawa asking whether to execute Shu Cheng's wife had already proved that Shu Cheng was the one who informed the Sakura Group of the sample address.

What Jiang Hao is doing now is just to let everyone focus on Shu Cheng's body, so that he can continue to envisage Hao Lu's next plan to interrogate Shu Cheng, he believes that as long as he can interrogate Shu Cheng, Shu Cheng will honestly explain everything, and his task will be completed.

"Just test Shucheng with a lie detector again, isn't it okay?"

Link immediately decided to test Shu Cheng again, and he would definitely not let go of a single suspicion.

"Hmm."

Everyone agreed with Link's approach of testing it again, if it was really Shucheng who leaked the sample hiding point, maybe he also knew where the sample was, and it was impossible to say if he chased the sample back.

"According to legal evidence, a polygraph is only a basis for judging a case, and cannot be used as evidence, even if it is really tested that he is lying, it may be caused by other reasons.

You have to think of a convincing proof to do so. ”

Jiang Hao rubbed his chin in pretended to be pensive, falling into deep thought.

"Is there such a way?"

Zhang Lang glanced at Jiang Hao with disdain, and really regarded himself as an omniscient god, hmph, I see how you find evidence.

"Just because you don't know the Tao doesn't mean it doesn't exist." The corners of Jiang Hao's mouth hooked up with a confident smile: "I'm sorry, I really have mastered a method of judgment." ”