A trace examiner enters the toilet and observes the sample to be extracted.

He leaned over, his eyes wandering over the skincare products on the sink, and then looked down at the upper and lower parts of the faucet, and found a drop of dried blood at the corner connecting the spout.

Remove the cotton swab and sealed jar, extract a thin piece of blood from the top into the sealed jar, and continue to search for other evidence.

The shower was randomly thrown on the floor, with a few hairs left in the corner, and he put it in a ziplock bag, and found a lump of mud about 1mm in size under the washstand.

After Ah Hua extracted the deceased's Jing liquid, blood stains and saliva, Xie Song had already made a preliminary observation of the corpse table, and he was a little hesitant in his heart, and got up to observe the objects in the house, and the apprentice Jing Ming asked unclearly: "Master, is there any problem?"

"Look at the wounds of the dead"

She lowered her head and re-examined the bone-deep wound: "It should have been hit with a strip of weight"

He looked around, and finally fixed his gaze on the cramped kitchen: "Look at the two that didn't hurt the bones."

Hearing this, Jing Ming took a closer look, and then furrowed his brows slightly: "This shape is a little familiar, like I've seen it somewhere."

Before the words fell, a kitchen knife with a cold glow suddenly stretched out and stopped firmly at the position of the deceased's skull, and she was suddenly startled.

Xie Song leaned over, the handle of the knife rotated in his hand, the back of the knife was facing down, close to the corpse's wound and compared, Jing Ming took a look: "Is it the back of the knife?"

The captain of the criminal police couldn't get in for a while, so he looked in at the door: "Xie Song, how"

The person who was called straightened up: "The preliminary estimate is that the time of death is more than 30 hours, the fatal wound is in the head, the skull is cracked, the body has been moved, the murder weapon should be this kitchen knife, but I dare not conclude that it should be brought back for comparison" and then called a colleague in the collection: "Drum boy, tired"

A trace inspector named Guzai walked over, opened the ziplock bag, and Xie Song put the kitchen knife inside.

After the physical evidence at the scene was processed, Xie Song confessed to Jingming: "Notify the funeral home to transport the body back"

"Good"

Seals were affixed to the scene, and the people in the technical room left the scene and returned to their respective analysis rooms, while the other two forensic doctors went to the funeral home to autopsy the body.

The two arrived at the funeral home, disinfected and changed into surgical gowns, and the body had been transported to the autopsy table, with an information sign hanging on the thumb of their feet.

Before the autopsy, Xie Song first investigated the surface scars, while Jing Ming assisted and recorded.

He turned on the ultraviolet light, started to shine from the head, and found multiple bruises on his face and shoulders: "The deceased Lin Wan has bruises below the bridge of her nose to her cheeks and neck"

She picked up her camera and took a picture next to her.

After inspecting the surface scars of the corpse, he picked up a magnifying glass and began to investigate the hair on his head, which should not be taken lightly

When he reached his hand, he suddenly picked up the tweezers, and took out a short hair between the deceased's cracked nails, and because he was so close that he smelled a very faint smell between his noses, he lifted the deceased's hand, put it to the end of his nose and sniffed it again.

"Tastes a bit like sulfur"

Jingming: "Brimstone?"

He began to investigate the lower half of his body, pried it open with a cold tool, and found something unusual: "The deceased had a tear on his lower body and had been sexually assaulted"

Jing Ming recorded as he spoke.

After the autopsy was completed and the autopsy officially began, Xie Song picked up the scalpel, cut through the front of the deceased, and explored deeply into the internal organs.

"The entrails have begun to decay," and a half-fingernail-sized piece of food scrap is removed from the stomach.

Jing Ming took a closer look: "Carrots?"

"Hmm"

"The rest of the stomach has been digested, carrots are hard vegetables, the longest digestion time is not more than 6 hours, the deceased died 4-6 hours after eating"

She listened as she signed the pen in her hand.

After the autopsy, he handed over the stitching work to his apprentices.

After the two completed the autopsy and disinfected their bodies, they entered the laboratory and tested the physical evidence taken from the corpse for DNA testing.

It stands to reason that this work is in charge of the physical and chemical biology, and the task of the forensic medicine department is not light, so Jing Ming couldn't help but ask.

While slumping on the desk for analysis, Xie Song did not raise his head: "There will be a special meeting at 9 o'clock tonight, and there are a lot of evidence on Achen's side, you can do more, and the contact area will be wider."

Hearing this, she didn't speak again, put her hair in the kit, lowered her head and pursed her lips, so that the master would not see the slightest hint of laughter

After doing a series of analyses, Jing Ming took out a report and gave it to him: "Master, let's see if there is anything missing."

Dark eyes swept over the paper, and after checking that it was correct, Xie Song signed his name at the identification signature: "Time is tight, send it to the criminal police team in advance, and copy the original to them after I stamp it."

"Good"

At 9 o'clock in the evening, the criminal police team and the scientific and technical personnel all arrived, everyone had their own reports in their hands and had read them, and now the door of the conference room was closed, and the captain of the criminal police went straight in: "What did you find?"

First of all, the criminal police team members made a report on the clues found today: "The deceased Lin Wan, who worked as a cashier in a "Dachangfu Supermarket" near her residence, walked from the supermarket to the scene of the crime, and it took about 9-13 minutes for the female to walk on her feet;

After leaving the supermarket at about 10:40 p.m. on the 14th, I didn't go to work at the supermarket until the 16th, that is, today, and I didn't ask the boss for leave.

According to Chen Fu, the owner of the supermarket, Lin Wan's parents died, living alone, people are very diligent, generally nothing will not ask for leave, the first day when the deceased did not go to work, he tried to contact, did not contact, although a little strange but not very worried, the next two consecutive days could not be contacted, this is suspicious"

"I asked Lin Wan's colleagues who worked in the supermarket, Lin Wan had a good personality, she didn't have any major friction with anyone, and the house where the deceased lived had no traces of being turned over, and the mobile phone, cash in the bag and bank cards were all there."

"In addition, not long after 11 o'clock on the night of the 14th, the residents who lived downstairs in Lin Wan vaguely heard a similar impact sound from the ceiling, and occasionally heard some noises in the past, plus the lightning and thunder at that time, the 103 residents didn't pay attention to it."

Criminal Police Captain Mo Chenglin: "What's the situation over there?"

"We have analyzed and compared the footprints in the house, and only one person's footprints were left in the deceased's house, which was confirmed to be the person who called the police, and the traces in the house have been cleaned up;

We found traces of blood and mud on the faucet of the toilet, the blood stains belonged to the deceased, and the soil composition was composed of ordinary loess chemicals such as silica, alumina, calcium oxide, etc., in addition to extremely rare sulfur components;

As for the strip wound on the deceased's head, it matched the back of the kitchen knife in the kitchen."

"I also found a dried plant spot on the deceased's clothing, which was tested to be a sticky juice produced on the skin of papaya"

Physical and chemical inspector Achen: "I extracted the blood stains on the deceased's head, the blood stains on his clothes, and the saliva spots and ** swabs, but I couldn't find the DNA of the second person."

Captain Mo looked at someone on the field: "Xie Song, what information do you have over there?"