The meeting continued, and the discussion was divided into different views.

Ren Qiang only proposed two possibilities, and no one knows what it actually looks like.

Some people feel that although there are blood stains on the sharp knife, and the blood type is the same as that of the deceased, because the traces on it can no longer extract DNA information, it is impossible to use it as the basis for determining the murder weapon.

Therefore, there are different opinions on whether the murder weapon is a murder weapon or not.

After all, the claim that the murderer provoked is not very tenable, and there are not many such fools in the country.

Because the judicial systems at home and abroad are different, foreign criminal cases attach importance to both evidence and jury in the verdict.

Evidence that can be used as evidence at home may not be able to be used abroad.

Therefore, provocative police officers are often heard of abroad, but very few at home, and occasionally there is such one, and the end will not be very good.

It is too much of a coincidence that the murderer first abandoned the murder weapon, and then the body went down the river, just where the murderer abandoned the murder weapon.

Wouldn't it be like this in TV dramas?

Survey laboratory.

Lao Bai looked at the little things in the bottle with a curious face, crawling east and west, which was quite interesting.

"What is this?"

Not to mention, these little things are really disgusting when they crawl out of the corpse.

But when it's in the bottle, one or two alone squirm and squirm, and it's hard to see where you got it without saying it.

"A larva of a common Diptera insect in life."

Lu Chuan looked at Lao Bai, who was observing the larvae in the bottle up close, and did not explain in easy-to-understand words.

"What Diptera? Larvae?"

Liu Guodong rolled his eyes: "It's the larvae of flies."

Larvae of flies?

"Where is this thing?"

Lao Bai and Yang Sen just glanced at it when they were helping to move the corpses by the river.

Because of the heavy rain, the smell of corpses was masked, and the maggots that bred on the corpses did not appear.

When they were just examining the corpse in the dissection room, Yang Sen and Lao Bai were testing the sharp knife, so of course they didn't know where these things came from.

"Of course, it's on the corpse, which Lu Chuan used for experiments."

On the corpse?

Lao Bai's face suddenly turned bad.

Lu Chuan chose all energetic, white and chubby larvae, and their appearance didn't seem to have anything to do with corpses.

"Unkind......

underestimated, Lao Bai left a little depressed.

Liu Guodong smiled bitterly and shook his head, he didn't let him come down just now, he had to follow.

Yang Sen didn't come down, and of course he didn't have to disgust himself.

"Xiao Lu, next you come to do the cultivation experiment, if there is anything you need our help with, I'll come down again."

Liu Guodong obviously didn't want to take it down there.

He is an investigator, and he does not have a forensic doctor who is about to become a girlfriend, let alone receive two salaries, and the work of a forensic doctor is ...... Forget it.

The criminal police of the criminal investigation detachment are also people.

Solving a case is actually a job, but it is much more exciting than ordinary work.

It's also harder and more dangerous.

But once there is a choice, who doesn't want to live a stable life and move forward with a heavy load...... It's not good to do.

Lu Chuan was the only one left in the laboratory.

The time of death of the deceased can be determined by analyzing the parasitic eggs on the corpse, not just by looking at the length of the bugs.

The first thing Lu Chuan had to do was to determine the species of larvae.

There are many types of flies, and there are also many flies that like to parasitize on corpses.

Generally, the most common are houseflies, lily flies, fruit flies, mercerized green flies, etc.

Different species of fly larvae have this subtle difference, and the incubation cycle and optimal incubation conditions are also slightly different.

But these differences are not big, and Lu Chuan is making a distinction.

First of all, you can exclude the fly fly, which also has some small branches, such as the most common mung bean fly, which is a type of fly fly.

This fly prefers to eat human and animal excrement, but does not like to breed on carrion.

Moreover, the larvae of the flyfly are darker in color and generally appear gray, which is more obviously different from the white larvae collected on the corpse.

The larvae of houseflies, fruit flies, or mercerized green flies are similar in appearance, but they have subtle differences in their response to stress in some particular foods.

After several experiments, Lu Chuan could basically determine that the parasitic flies in the corpse were hemp flies.

Compared with houseflies and mercerized green flies, hemp flies prefer to survive in the natural environment outdoors.

In most cases, if the corpse is killed indoors, after which it decays and deteriorates, the parasitic flies are mainly houseflies and mercerized green flies.

However, if it is killed outdoors and begins to spoil and deteriorate, most of the parasitic flies are hemp flies.

Of course, this is only an approximate situation, and some special cases are not included.

The type of parasite is determined, which is to simulate the external environment of the corpse, and then the corpse fly larvae are cultivated.

It's not something that can be concluded in a day or two.

Lu Chuan needs to cultivate the existing larvae and compare the growth rates of different sizes of larvae before simulating the external environmental temperature and humidity of the corpse.

These two factors are the most critical factors that determine the growth rate of the larvae.

Only by mastering this, we can compare the parasitic time of the hemp fly on the corpse according to the growth cycle of the hemp fly under the standard situation, so as to determine the time of death.

"Ding!"

"Basic Mission: Complete a forensic insect experiment to determine the time of death of the corpse by cultivating parasitic maggots on the decaying corpse."

The basic task?

Lu Chuan, who was cleaning the petri dish, was slightly stunned.

It's been a long time since you received the basic task of system release, right?

When Lu Chuan first got the system, he was exposed to the basic tasks released by the system many times.

Compared with advanced tasks, the content of basic tasks is relatively simple, and the main task is to further become proficient in acquiring skills.

However, there is no corresponding reward for completion.

Thinking of the task, I don't know what happened to the case of Lu Yao's fraud?

QZ City heard that the man who defrauded Sun Yuting had been caught.

In this case, it is estimated that the 10 million that Lu Yao was deceived may still be returned in its entirety.

Shaking his head, Lu Chuan continued to work.

Economic investigation cases are different from criminal investigations.

Criminal investigation is more like hide and seek, and 90% of the cases are solved when the murderer is found.

However, economic investigation is different, and it is often much more difficult to solve the case than criminal investigation, which pays more attention to the process of solving the case, the flow of funds, and the locking of evidence.

For example, in some common fraud cases, more often people are caught, but the stolen money cannot be recovered.

Either the suspect is deliberately hiding, or it is really defeated.

But in either case, it is difficult for the victim to get back the money they have been defrauded, or it is difficult to get the full amount back.

QZ City Economic Investigation Detachment, Wang Haiyi has been very busy in the past two days.

Sun Yuting's case has dug up a lot of exciting insiders.

Like Sun Yuting, there is more than one person who has been deceived, and the amount of money she has been deceived is not the largest. Look at the book

The suspects did not commit the crime alone, they have an extremely well-connected gang behind them!