Gu Chen's words made everyone stunned, but everyone couldn't understand it, and they didn't know what Gu Chen was talking about.

"Gu Chen, what is your basis?" Comrade Li, who had been standing at the door, finally couldn't help but ask shamelessly.

He is an old comrade who often gives Gu Chen negative opinions.

Gu Chen explained to everyone: "Although Zhao Heng is blood type A, although the results are consistent with the results detected by Forensic Doctor Liu on the threatening letter, he belongs to a non-secretory physique, which can already rule out the possibility that he is a murderer." ”

"Non-secretory physique?" Lu Weiwei bit her lower lip: "Is there anything special about this?"

"Absolutely. Gu Chen looked at the dead Zhao Heng in an instant: "To put it simply, a person with a non-secretory physique means that his saliva, sweat, Jing fluid and other secretory fluids will not secrete blood-type substances, that is, his blood type cannot be judged from his saliva, sweat and Jing fluid and other samples." ”

Hearing this, Comrade Lao Li was immediately surprised: "That is to say, for people with non-secretory physique, the substances that form blood types are not mixed in the body, so such people can't determine their blood type at all except blood, right?"

"Quite right. Gu Chen thanked Comrade Lao Li and saved himself a lot of saliva for explanations.

"The secretory type and non-secretory type of the individual are determined by genetics, and the non-secretory constitution population accounts for about 20% of the Han people, and it is difficult to distinguish the non-secretory constitution population from the secretory constitution population from the secretory constitution population. ”

Gu Chen said this, and Officer Wang also secretly smacked his tongue.

He understood why Gu Chen was so surprised just now, he just wanted to speak, but Lu Weiwei took the lead.

"Senior Brother Gu Chen, according to what you said, the saliva left on the threatening letter, the result of the test is the blood type sample of the real murderer, and the saliva sample of Zhao Heng we sent over today can't be detected at all, right?"

"Yes, Senior Sister Lu. Gu Chen nodded, his face heavy.

However, on the phone, Forensic Doctor Liu on the other side also heard Gu Chen's explanation, and said in his heart that he would treat me as a transparent person?

However, Forensic Doctor Liu didn't mind, he continued on the phone: "That's right, what Gu Chen analyzed is what I want to say, these two saliva samples are not a person at all, if Zhao Heng is an accomplice, then the murderer is someone else, Zhao Heng must have been killed by the murderer." ”

I have to say that Forensic Liu has rich experience, and he quickly passed his own appraisal and had a clear understanding of the case.

Otherwise, it will not be the technical backbone of the major criminal investigation teams, scrambling to tie up.

"Forensic Doctor Liu, where are you now?" Gu Chen hurriedly asked.

"Don't worry, get downstairs. ”

A few minutes later, Forensic Doctor Liu came to the scene of the crime with his forensic assistant.

Using professional instruments, after a preliminary examination of the deceased Zhao Heng, he nodded and said: "It is confirmed that he died of poisoning, judging from the time of death, it should be within two hours." ”

"Within two hours?"

Gu Chen, Officer Wang and Lu Weiwei, the three of them exclaimed together.

"What?" Forensic Doctor Liu was stunned: "Is there a problem?

Gu Chen waved his hand and explained, "That's not what we meant, it's just that the three of us just left this office two hours ago. ”

"So what?" forensic doctor Liu was stunned.

Gu Chen's face was gloomy and he said: "Zhao Heng was poisoned and died within two hours, that can only mean that he started to die of poisoning not long after we left, and it won't be too long." ”

Forensic Doctor Liu glared, and then looked at Officer Wang and Lu Weiwei.

Both of them nodded vigorously, indicating that what Gu Chen said was the truth.

"How did the murderer do it?" Forensic Doctor Liu held his chin: "He can make Zhao Heng take poison unconsciously, then there can only be one possibility, the murderer may be an acquaintance who knows Zhao Heng very well." ”

As soon as Forensic Doctor Liu's words fell, Lu Weiwei and Officer Wang unconsciously looked at the front desk lady beside them.

The front desk lady was also startled, and quickly waved her hand to clarify: "It's not me, it's really not me." ”

"I know it's not you. Gu Chen answered at this moment: "You have no motive to kill, and with your body, you can't kidnap Zhu Linian's son." ”

You must know that although Zhu Linian's son is only eighteen years old, he weighs nearly eighty kilograms, and with the thin arms and legs of the front desk lady, there is no play at all.

When the front desk lady heard this, she finally breathed a sigh of relief, but before she could calm down, Gu Chen continued: "But you may be an accomplice." ”

"Help...... Accomplice?"

The front desk lady had a weak foot and almost fell, and the whole person was at a loss and hurriedly said: "Police...... Comrade policeman, don't make such jokes? I'm innocent, and I've only been on my third day on the job, and I haven't even been around for a week, and I didn't know Mr. Zhao before that. ”

The front desk lady was also panicked......

How did she know that she had become an accomplice to murder when she went to work? It's scary to think about, isn't it?

"Don't be anxious, don't panic, let me ask you, after we left, who entered Zhao Heng's office?" Gu Chen asked again.

The front desk lady pondered and muttered, "It seems to be me." ”

But when I thought about it, I immediately cried: "Hmm...... Isn't that still me? I'm so wronged, woo. ”

"Gu Chen, could it be that you made a mistake?" Officer Wang hurriedly said, "This girl doesn't look like an accomplice no matter how you look at it." ”

As a result, Lu Weiwei was not happy: "Lao Wang, which eye do you have that doesn't feel like an accomplice? Can this be based on feelings? It depends on evidence." ”

Then she pointed to Gu Chennunu's chin: "Yes, Senior Brother Gu." ”

Gu Chen didn't speak, but Officer Wang looked embarrassed.

I usually rub my head in the office like kneading dough, and in front of outsiders, don't you give any face?

"Lu Weiwei, I'm just guessing, okay?"

"It's not okay to speculate, you have to talk about evidence. ”

Officer Wang: "......"

At this time, Gu Chen interrupted the quarrel between the two, and he continued to ask the front desk: "Then did you send anything after the three of us left?" Think about it. ”

"Like...... Just sent a stack of materials, right?" The front desk lady was surprised: "Yes, it is the stack of materials on Mr. Zhao's desk, which Mr. Zeng asked me to hand over to Mr. Zhao for reference, saying that he was in a hurry." ”

Everyone suddenly fell silent, and their eyes brushed together...... The stack of materials that was thrown on the table.

"Could it be that the murderer is Zeng Ke?" Gu Chen hesitated, and the clue map in his mind instantly began to be spliced quickly: "As soon as Zhao Heng died, Zeng Ke should be the biggest beneficiary of this company, right?" And the last time I went to the park, Zeng Ke also went to the scene, is it all a coincidence?"

"But...... But Mr. Zeng only sent a stack of materials, and he didn't personally enter the office, which my colleagues can testify. ”

The front desk lady was not panicked now, and began to do everything she could to help Gu Chen provide useful clues.

Officer Wang also said: "Gu Chen, you may have thought too much, he Zhao Heng died of poisoning, how could he do it?"

"Unless...... There is a possibility. The clue map group in Gu Chen's mind also completed the final splicing at this moment.

He now knows how the murderer poisoned Zhao Heng.