Chapter 180 As long as you move your hands and feet, you will definitely leave traces
He didn't need to tell him this information, Yu Dazhang also knew it.
There are detailed records of this time in the case book.
The video conference at that time was also preserved as a audiovisual evidence.
The exact time is twelfth minute into the video conference.
Liu Zhengyang first had symptoms of consciousness, and then gradually slipped from the chair.
The whole process takes less than a minute.
"Did he take medicine before the meeting that day?" Yu Dazhang continued to ask.
This issue was missed by the police officers who handled the case before.
Because the identification results given by the forensic doctor were naturally died, the police officers participating in the case at that time excluded the possibility of drug poisoning.
This is the mistake of preconceived.
"Eat." The housekeeper answered very simply:
"I remember very clearly. At that time, I brought hot water for my husband and watched the husband take the medicine."
"Do you remember a few minutes before the meeting?" Yu Dazhang asked.
The housekeeper didn't seem to expect that he would ask so detailed, and then answered after thinking about it for a while:
"I can't remember it, it is about ten minutes."
This timing is very clever... Yu Dazhang calculated it in his mind.
Ten minutes before the meeting, plus twelve minutes after the meeting.
In other words, Liu Zhengyang had a heart attack more than 20 minutes after taking the medicine.
"You said that you looked at Liu Zhengyang to take the medicine?" Yu Dazhang repeatedly asked the housekeeper.
"Yes." The butler replied affirmatively.
Yu Dazhang's brain was running rapidly, and after thinking about all the possible changes, he asked:
"Is there any difference in the number of medicines at the time?"
"Nothing different, just the same as usual." The butler answered very confidently:
"I personally take the medicine and water every day. I also remember very clearly how many pills to take for each medicine. There is absolutely no mistake."
The reason why Yu Dazhang focused on the question of drugs was because this was the only way he could think of to kill Liu Zhengyang.
God did not know that Liu Zhengyang's heart disease had died without knowing it, and he could only do it on the medicine he took.
Those who can do this must be the people around them.
Outsiders can't even enter their house.
But the current situation is: the medicine is right, and the amount taken is right.
The case was clearly remembered that after the incident, the police officer who handled the case brought the two medicines that Liu Zhengyang usually took them back for testing.
The final result showed: there was no problem with the drug.
This was one of the reasons why the police at the time ruled out drug poisoning.
It was these two drugs that Liu Zhengyang took before the onset of the disease.
"Let's leave it like this for now. I'll contact you if I have any questions."
Yu Dazhang's current brain is a bit messy:
"If you think of anything new, you can also contact me. My phone is open 24 hours a day."
He urgently needs to be alone for a while to sort out the information he just received.
After the call, Yu Dazhang quickly fell into thought.
The direction of the investigation is correct. The other party must have done it before the video conference started.
And it must be a certain treatment of the drug.
There is no problem after the test of the medicine, and the number of taking is right, and there is no wrong medicine ...
So how did the other party give Liu Zhengyang a heart attack?
Yu Dazhang thought about all the possibilities, but still couldn't figure out how the other party did it.
When at the police school, the teacher said that when the criminal IQ was high, he was quite unconvinced and believed that no criminal could escape legal sanctions by IQ.
Now he believes it.
There really are people who can do things perfectly.
No.
It's because he didn't check carefully enough... Yu Dazhang secretly encouraged himself.
There must be something I never thought.
Since the other person is very attentive, you have to do everything in detail. No detail can be missed!
"As long as you move your hands and feet, you will definitely leave traces."
In the brain of Da Zhang, recalling the conversation with the housekeeper, but inadvertently chanted:
"Your IQ can make traces disappear, but some traces should not disappear."
"For example ..."
I know... Yu Dazhang's eyes lit up and he immediately came to the door of the detachment and called Ma Jian and the others out.
"You go to the evidence room. Two bottles of medicine were sealed in Liu Zhengyang's sudden death case. You go and get them. The evidence numbers are recorded on the case file. After you get them, go to the technical department and find me."
"Okay."
After the two agreed, one person went to the evidence room, and the other went to investigate the case.
Yu Dazhang took out his phone and called Qian Cheng:
"Brother Qian, are you in the technical department?"
"Oh." Qian Cheng heard Yu Dazhang, and his voice unconsciously raised a little:
There is no mistake, one, one, one, one, one, one, one, one 619, one book, one, one, one, one, one, one, a book!
"Is there a case again?"
"Still you know me." Yu Dazhang said with a smile:
"I have to find you to help this time. I will go to the technical test fingerprint for a while."
The technical department will not give you a reply immediately.
It usually takes one to two working days to get results.
During this period, the corresponding procedures must be taken, and there must be written reports.
But there are acquaintances in the department.
If you skip those programs and do not need a written test report, the results can be released immediately.
Especially detecting fingerprints can be completed in just a few minutes at the earliest.
"Why are you so polite to me?"
The relationship between Qian Cheng and Yu Dazhang can be described as close, and their conversation is naturally more casual:
"Come on, I'm waiting for you."
I am also a person who has a connection ... When he thought of having his own acquaintances in the technical department, he felt that his waist rods were hardened.
The system pays attention to interpersonal relationships.
If a person is well-connected and well-connected, if nothing else, his work efficiency will be greatly improved.
You know, some departments in the system take the procedure to drag people crazy.
Come to the technical department.
As soon as Qian Cheng saw Yu Dazhang, he immediately asked:
"What case?"
It is worth mentioning that at this commendation conference, he also received third-class personal merit.
In the case of the tertiary hospital, Qian Cheng was assigned to the arrest team by Yu Dazhang, so when the credit was given, he was also among them.
As long as the technical department can endure, it will not be difficult to gain collective credit.
But if you want to obtain personal credit, it is simply the difficulty of hell.
Why?
No chance.
Investigating the scene and assisting in solving the case are all done by the department, and there is basically no opportunity for personal performance.
This time, even Qian Cheng didn't expect to be honored on stage.
Everything happened so suddenly, and out of nowhere he became the most handsome boy in the technical department.
"There is a backlog of cases in our branch." Yu Dazhang replied.
There is nothing to conceal between him and Qian Cheng, and there is nothing to keep in confidentiality in this case.
"Your current courage is getting bigger and bigger."
When Qian Cheng heard that it was a backlog of cases, he couldn't help but show a worried look on his face:
"You dare to touch the case, I think you are really floating."
(End of chapter)