Chapter 395: Reliable

Kang Zhichao picked up the photos Jiang Yuan handed out and read them carefully.

After watching for a while, he took his laptop from under his seat, went on the intranet, and looked through the previous autopsy reports and photos.

Feng Qiong waited for him for almost ten minutes.

During this period, no one in the meeting room spoke. The answer Jiang Yuan gave had too great an impact.

The determination of the time of death is not only extremely important in forensic medicine, but also extremely important in criminal investigation practice.

Like the famous "perfect murder" in reasoning, half of it must have used an "alibi," which is the use of the time of death. Murderers have used refrigerators, air conditioners, adjusted watches, taken shortcuts...

In this, most murderers encountered forensic doctors who were too responsible but of average level. So they always gave an accurate time of death to facilitate the police's misjudgment.

In fact, forensic doctors of normal level are basically unable to determine the time of death to the hour. For a death within 24 hours, saying a number like 8 to 10 hours, or 3 to 5 hours, is already very reluctant, after all, there is data like liver temperature to support it.

Once the death exceeds 24 hours, it is very difficult to give a more accurate value. It is not completely unfeasible, but the technology used is no longer what ordinary forensic doctors can master.

As for cases with longer deaths, the more accurate the requirement, the higher the difficulty.

The information that forensic doctors can rely on is basically non-standard. Such as liver temperature, insect species and generational relationships, corpse stiffness and corpse spots microbial community changes, the degree of red blood cell ATP degradation, and even the infrared Fourier transform of the skin after death, can all be used for the determination of the time of death.

But looking at this problem from another angle: if there is a technology that can simply and crudely determine the time of death of a corpse, are these scientists' brains burned out to use various methods to make determinations?

As the saying goes, poor students have many stationery items. The more technologies and methods developed for a numerical calculation, the more it shows that this value is difficult to calculate accurately.

And for Case 503, if the first victim was an armed police officer, then this case is highly likely to be two criminals stealing or robbing a gun, then killing the victim, and carrying the firearm, trying more and more efficient robberies.

At this time, to solve the case in a positive direction, one must consider the first victim more. It can basically be determined that the criminal was aiming for the gun.

Because if it was about people, one could completely choose a time when the police officer was not carrying a gun, and there was no need to carry out subsequent multiple robberies.

There are many similar cases, such as the famous fierce bandit Bai Baoshan, who started his robbery path by attacking a sentry to seize a gun.

Then, following the idea of seizing a gun and killing to rob as the direction of criminal investigation, what is naturally considered is the disposal of property, the criminal's familiarity with the armed police officer, the planning of the robbery route, the planning of the robbery method, the planning of subsequent robbery schemes, etc.

However, if the first person the murderer killed was actually the second victim, the situation would instantly reverse.

Killing the second victim first, then killing the first victim, shows that the murderer's original target was very likely the second victim, and the first victim, as an armed police officer returning home from work, was more likely to have bumped into the murderer and then been killed in a conflict.

In this way, the criminal investigation direction based on seizing a gun and killing is completely wasted. The investigation of the second victim needs to be re-thought from the perspective of whether it was about people or money.

All kinds of emotions, all kinds of thoughts, all kinds of realities flowed in the meeting room. Feng Qiong couldn't wait, turned his head and asked Kang Zhichao: "How is it?"

"Are you asking me?" Kang Zhichao was still looking carefully at the photos in his notebook.

"Right. Otherwise?" Feng Qiong knew that his colleague was a bit dull, but there was no way. Even in the ministry, you can't expect your colleagues to be technically good, have a good personality, be emotionally stable, look good, be indifferent to fame and fortune, and be hardworking. The so-called impossible hexagon is just that.

Kang Zhichao raised his head, found that everyone was looking at him, and then said: "I'm also asking someone." "Asking who?"

"Old Tao."

Kang Zhichao paused, then said: "My forensic medicine is half-baked, learned later, let Old Tao take a look." Feng Qiong was helpless, sighed, and asked: "What did Old Tao say?"

"Old Tao." Kang Zhichao looked at his laptop and said: "I'll paraphrase his original words, just one sentence: So awesome? Question mark."

"And then?" "Nothing else."

The two spoke in front of everyone, and the content had no intention of covering up. A group of county bureau police officers listened and looked at each other. So the leaders from the ministry, when the case couldn't go on, the action of shifting blame was actually like this?

"Smoke a cigarette."

The director handed Feng Qiong a cigarette, his mood was not bad.

If this case goes according to what Jiang Yuan said, then next, Feng Qiong and others should return to Anhai City, use the manpower of the Anhai City Bureau, and investigate and collect evidence in Anhai.

For the Miaohe County Bureau, it is indeed a loss of a chance to make a contribution, but to tell the truth, for this kind of headless case, is this kind of opportunity given something that the small Miaohe County Bureau can grasp?

It's really better to get out early.

Director Guan Xingfu couldn't help but glance at Jiang Yuan, thinking: By comparison, finding a dog for Jiang Yuan might be more reliable. Woo woo...

Kang Zhichao's phone vibrated.

He picked it up, looked at it, and said: "It's Old Tao's."

"Turn on the speakerphone." Feng Qiong rubbed his eyes, not pretending anymore.

This case has now reached a fork in the road. If it proves that Jiang Yuan is talking nonsense, then shoot it back clearly and continue the investigation in Miaohe County. If it proves that Jiang Yuan is not talking nonsense, then they should leave Miaohe County. At this moment, paying attention to image, dignity, etc., has no meaning.

Kang Zhichao connected the call and said: "Old Tao, speakerphone is on, we are having a meeting. Next to me is Feng Qiong, as well as several leaders of the Miaohe County Bureau, and relevant police officers."

"There are quite a few people." Old Tao hissed and asked: "That, is Wu Wu Fa Yi Jiang, who was mentioned just now, there?" "Next to me." Feng Qiong said directly: "Old Tao, just tell us the conclusion, no need to worry."

Old Tao said "Ah", and said: "I have no conclusion. If you ask me if I can see the time difference between the two, in the photos, I really have no way to determine. However, if you ask me to deny this judgment, I can't do it either. I know I'm talking in circles, but I have a 'but', but..."

Old Tao paused for a moment and said: "Relatively speaking, I am more inclined to the conclusion that the second victim died first. However, regarding this specific judgment, especially in terms of the time of death, I think I should discuss it with Wu Wu Fa Yi Jiang. Wu Wu Fa Yi Jiang?"

"I'm here." Jiang Yuan responded, and started by saying: "From the photos, the time of death of the two is indeed relatively close, only about an hour apart. Regarding the specific time judgment, I think it can be compared through the cornea."

"I saw the two photos you sent. Regarding the cornea... I didn't see much difference..." Old Tao was obviously looking at the photos on the other end of the phone, just with an uncertain voice.

Jiang Yuan said: "The state of the cornea is close, which is actually the problem. You look at other photos. The armed police officer died with his eyes open, and the second victim died with his eyes closed. In addition, the second victim should have been put into the trunk after death. Then in a relatively anaerobic environment, the excessive lactic acid produced on the corneal epithelium will lead to the swelling and turbidity of the corneal stroma. The environment in the trunk is airtight, and the time for corneal turbidity to appear is relatively fast. In addition, the first one had his eyes open, so the moisture evaporation of the cornea was relatively fast, and the corneal turbidity appeared relatively slowly. In this, the degree of corneal turbidity has changed, so you have to compare them..."

He knew Old Tao's pain point. Although forensic medicine is very particular about practice, when it comes to such fine details, in the final analysis, it is still academic stuff.

At this time, Jiang Yuan, sitting on the Level 6 time of death determination skill, naturally knew the difficulty of determination for lower-level forensic doctors. It's like a great teacher giving a lecture, knowing the students' pain points very well.

The old man on the other end of the phone couldn't help but say "Oh", and then there was no sound for a long time.

Feng Qiong waited for a few minutes and said helplessly: "You technical people, why do you stop talking when you talk?" Old Tao hissed, as if waking up, and said: "Old Kang, what do you say?"

Kang Zhichao, who was asked, didn't answer, and said: "I'm in trace examination, you have the final say."

Old Tao then took the responsibility, laughed twice, and said: "Then I will follow Division Chief Feng's request just now and state the conclusion first. Awesome!" ===== CHAPTER 396 =====

Old Tao, not one to shirk his duty, chuckled twice and said, "Then, following Commandant Feng's request just now, I'll state the conclusion first. It's awesome!"