"Xiao Cong, give a call to Cao Fan, an expert from the forensic department, there are some mysteries that still need his help to solve. Qiu Lan moved her eyebrows, and her tone was calm.

"Yes. The assistant Xiao Cong put down the things in his hand and walked to the table, ready to contact the forensic department.

But at the same moment, the phone rang.

It's Cao Fan's phone.

"Hey, Expert Cao. Satoshi clicked on the speakerphone button and greeted politely.

"Hello Satoshi, is Dr. Qiu here? We found something in the evidence collected at the scene yesterday, and I think it should be helpful to Dr. Qiu's judgment. A deep voice came from the receiver of the phone.

As soon as Qiu Lan, who was standing next to the planing table, heard this, she put down the equipment in her hand and strode to the phone.

"Expert Cao, I'm Qiu Lan, I was about to call you, I don't know if the substance I asked you to test yesterday has a result?"

"I was just about to tell you that in a sample of gasoline in an oil drum yesterday, I found a concentration of 2 percent bil hydroxy hemst. ”

"And the white substance on the surface of the oil layer is the product of its esterification, biel hydroxyl acid diester celery. ”

"This substance has a high-strength thermal insulation effect. ”

Qiu Lan and Cao Fan said this sentence almost in unison.

"Doctor Qiu is really amazing, he can react to this problem so quickly, if I don't know that you are a forensic doctor, I really think you are a chemical genius. Cao Fan praised two sentences affirmatively.

It is inherently remarkable to be able to skip the stage of forensic assistant at a young age and become a full-fledged forensic doctor in the forensic department of the police station.

In the first two case contacts, Cao Fan saw Qiu Lan's excellent thinking ability and logical analysis ability, and he couldn't help but have a sense of admiration for her.

"Expert Cao is too famous, I have only read this kind of book before, forensics, I need to know more about it. Qiu Lan responded to him modestly and shifted her attention to the case.

"By the way, as far as I know, the substance is also very corrosive, and it also proves why wounds that do not decompose until three to five days after death appear within a few hours of death. ”

"Expert Cao, thank you very much. Qiu Lan raised her eyebrows, and her mouth suddenly opened.

Hanging up the phone, she lowered her eyes, thought silently in her heart, and kept muttering.

"Bil hydroxyl diester celery, this substance has not yet been specially calculated by international authoritative organizations or experts to calculate its thermal insulation effect, how can we judge the time of death of the deceased?"

Xiao Cong, who was standing on the side, frowned, and also thought about this question together.

Suddenly, Qiu Lan's eyes flashed, and she thought of a method that had been used in scientific verification.

"Xiao Cong, the corpse is almost finished here, there is only some finishing work left, you don't have to worry about it for the time being, you can go to the market here now to help me find a piece of pork liver, and at least eight centimeters thick pork belly." ”

"Good. ”

Although Satoshi didn't know what she wanted these things for, since she said so, there must be her intentions.

For the next half hour, Qiu Lan made a record of the final examination of the body, then stitched the body back to the cold storage for frozen preservation.

By the time she was done with all this, Satoshi had already bought everything back.

They found a transparent glass sink and added another two thousand milliliters of gasoline.

Eventually, Qiu Lan found a heater and heated the temperature of the liver to thirty-eight degrees and the pork belly to thirty-seven degrees.

These data are exactly the same as the data of the human body.

"Doctor Qiu, what are you going to do here?" Xiao Cong helped her do these things, still confused in his heart, and couldn't help asking.

"This is a reduction technique, the composition of pork liver is not much different from that of human liver, and pork belly represents the fat layer and muscle layer wrapped around the liver. ”

Qiu Lan picked up the pork belly, breaded it around the pork liver, then cut off the excess part, and finally sewed it up.

"You see, although this is very different in appearance, but it is not the same as the structure of the human body?"

She pursed her red lips and methodically added an appropriate amount of bil hydroxy dister celery, which just made up a solution with a concentration of two percent.

"Satoshi, for the rest of the time, you have to stay here and measure the temperature of your liver every five minutes until the temperature of your liver drops to about thirty-two degrees. ”

"I see. Satoshi nodded, his admiration palpable.

He originally thought that this case was more complicated than before, and the work of determining the time of death would be even more difficult, but Qiu Lan's small method solved all the problems.

Qiu Lan briefly instructed a few words, then turned around and walked into the laboratory.

While waiting, she made a small piece of tissue that had just been cut from the corpse into a slicing and examined it under a microscope.

It is true that no green part was found.

Later, she tested it with a chemical experiment agent and confirmed that there was no copper oxide on it, which means that the rusted copper wire found by Mo Heng yesterday was indeed not a murder weapon.

The process of the experiment lasted for more than two hours, and after Qiu Lan packed up all the experimental supplies, Xiao Cong also had the results.

This result was very pleasantly surprised.

"Doctor Qiu. Xiao Cong excitedly walked in front of Qiu Lan with the record book, his eyes flashing with a faint light, "The deceased really didn't die an hour before he found out. ”

"I measured the temperature of my liver, and after three hours and five minutes, it dropped to 32 degrees, and this process lasted for eight minutes. ”

In other words, about three hours later, according to the situation at the time, the deceased should have died three to four hours ago. ”

"The time of our inspection is 5 p.m., which means that the time of death is between 1 and 2 p.m., and the time when there is a fight or being beaten is between 11 and 12 p.m. ”

Everything suddenly became clear, and the mystery was solved.

As for why the gasoline in the oil drum appeared in the diglycoate celery, and how the body was put in, all these questions have to be dealt with by the people of the serious crime team.

However, Qiu Lan's identification results have been of great help to them.

"Xiao Cong, send a copy of our autopsy report to Officer Xu, and then tell him the time of death we judged, as soon as possible. ”

After dealing with the corpse, Qiu Lan changed out of her surgical gown, lit incense, and lay on the swivel chair to close her eyes and rest for a while.

The wall clock on the wall ticked, and she glanced up at the hands.

It's already one o'clock in the afternoon.

From morning to now, she has not taken a sip of water or eaten a bit.

The rumbling of her stomach would not allow her to sit in the office any longer and remain indifferent.

Qiu Lan stretched, put on her coat, and walked towards the cafeteria.

But just as she got off the elevator and walked out of the elevator door, a black shadow crossed by, and someone tapped her shoulder.