Opening the drawer and taking out a five-dollar red plum, Lao Bai threw it to Yang Sen and expressed a different opinion.
Lu Chuan actually didn't know that when he was away, Liu Guodong and the others basically didn't smoke the Huazi he put on his desk.
Unless someone from another office comes over.
The rest of the time, a few people either smoke red plums or red rivers.
As a new member of the field survey office, Lu Chuan took the initiative to spread cigarettes and invite everyone to smoke expensive cigarettes. No one had any objection.
They also came here like this when they were working, but unlike Lu Chuan, they still couldn't afford Huazi at that time, so they smoked Camel cigarettes for their master.
Yang Sen gave Lao Bai a blank look.
He took Lao Bai's cigarette, lit it, and coughed.
"This smoke is stronger than Huazi."
"Nonsense, how much does this cost?"
Lao Bai didn't know that Hongmei was more powerful than Huazi and could scratch his throat, but it was cheap.
Yang Sen nodded. Not only did he feel that what Lao Bai said about cigarettes was right, but he also felt that his judgment about the case was correct. The probability of something happening at the scene was the highest.
When a case occurs, every office is actually discussing the case.
The current investigation office is actually not bad. After all, I have a technical background. Although I have not been handling cases on the front line in recent years, all my inferences and guesses are based on the findings of the current investigation.
The same cannot be said for other offices.
Civilian police officers gossip more.
"I remember it was a murder of love. I heard that the underwear on the body cost more than a thousand dollars!"
"That's not necessarily true. The corpse's coat only costs a few dozen yuan. It could be anything."
"Team Leader Sun has a dark face today, so he probably won't gain anything."
"Hey, the case has been going on for a week, and I heard from Brother Hui that there is still no big progress..."
Police officers are human beings too. Civilian police officers who work in the back office also like to gossip while working.
However, due to the limitations of the police industry itself, or the characteristics of the work, gossip is still a gossip case.
However, there are specialties in the art industry, and the frontline investigation must be an action team.
Most of the time, whatever they can think of, the action team will not let go.
Soon, the day passed without any results.
In the two or three days after the case happened, everyone was still very nervous and very busy.
But a week passed, and there was no progress in the case. Everyone performed their duties and started to deal with other tasks at hand.
Except for Lu Chuan who is busy in the current investigation office, no one else has any important work at hand. The workload of the current investigation of this case is relatively small.
Of course, Lu Chuan was not busy with the current survey work.
In recent days, everyone knew that Lu Chuan was raising insects in the current laboratory.
Many people took the time to come over and take a look.
Of course, I was in high spirits when I came, but pale when I left.
It's not Lu Chuan's fault. These people came over to see the maggots when they had nothing to do. They were sick.
What's more, most of the people who came to watch were internal police officers.
I've never been to the scene, let alone seeing maggots? .
Lu Chuan remembered that there were two police beauties from the office inside, and they seemed to have vomited when they went out.
From this point of view, Forensic Shen has a natural advantage.
After all, Forensic Doctor Shen is the only police beauty in the entire criminal investigation detachment who can discuss the topic of maggot breeding with Lu Chuan and usually drink coffee.
Early the next morning, Lu Chuan didn't bother to clean up his office as soon as he got to work, and went straight to the current exploration laboratory in the basement.
Today is the day when the intermediate larvae he cultivated will emerge.
Combining the time of early emergence of Sarcophagus larvae and the growing larvae stage, Lu Chuan was able to determine the time when these larvae parasitized on the corpse.
That is to say, it is more accurate to lock the time of death of the victim.
Lu Chuan arranged more than fifty petri dishes in a row in order.
Record the growth status and emergence time of Sarcophagus larvae of different sizes in the petri dishes one by one.
The optimal cultivation temperature for Sarcophagus larvae is between 24 and 28 degrees, and the relative humidity is between 60 and 80 percent.
With fourteen hours of light every day, it will hatch in about a week.
Sarcophagus eggs can enter a dormant state when the external temperature and relative humidity do not meet the hatching requirements.
Even at low temperatures, it can be stored for a week or even longer.
But the minimum temperature cannot be directly exposed to minus ten degrees.
According to experiments conducted by Lu Chuan, the results showed that the longest growth period of Sarcophagus larvae on corpses was thirty-six days!
Thirty-six days, the entire life cycle of an average lineage fly is about one or two months.
That's why Lu Chuan judged that the eggs had signs of being frozen.
Lu Chuan collected humidity data at the first scene where the murderer dumped the body, and combined with recent temperature changes, restored the external environment at that time.
If the murderer dumped the body as soon as possible after the murder, it would take eleven days for the Sarcophagus eggs to hatch.
But the reality is that the hatching time of insect eggs is thirty-six days.
After getting this conclusion, Lu Chuan can draw a definite conclusion.
After the victim died, the murderer did not abandon the body immediately.
The body was dumped eleven days ago, and the victim died thirty-six days ago!
The current survey office.
Liu Guodong looked solemn.
"Are you sure the body was refrigerated?"
Lu Chuan nodded affirmatively: "If it had not been refrigerated, the eggs of the Sarcophagus fly parasitic on the corpse would not have a thirty-six-day incubation period."
"But if the body was refrigerated, wouldn't the eggs be frozen to death?"
"Cryogenic refrigeration, even sub-zero cryogenic refrigeration, is not freezing."
"This is also the reason why the forensic doctor did not find freezing during the autopsy."
Low-temperature refrigeration is actually what is often referred to as preservation in life.
The preservation time is generally not too long, but because it is not completely frozen, there will basically be no traces.
What's more, the body was highly decomposed when it was discovered.
Qin Yong's office.
"Do you suspect that the body was refrigerated?"
Liu Guodong nodded: "It is possible."
Handing Lu Chuan's corpse parasite egg analysis report to Qin Yong, Liu Guodong explained.
"This is the forensic entomology analysis report made by Lu Chuan based on the parasitic eggs of the Sargassum fly on the corpse."
Although Qin Yong has been a criminal police officer for a long time, this is the first time he has seen this thing.
"The hatching time of Sarcophagus eggs is usually one to two weeks."
"Based on the temperature, humidity and other conditions at the first place where the body was dumped, it is estimated that the hatching time of the eggs should be eleven days."
"In order to verify the calculation, Lu Chuan has done several experiments this week. There is a high probability that there will be no problem."
"However, the actual incubation period of insect eggs on corpses is as long as thirty-six days!"
"Only under low-temperature refrigeration, that is, during the dormant period of the eggs, is it possible to achieve such a long incubation time."
"Thirty-six days...so accurate?"
