Chapter 301

The personnel of a provincial capital city are much more complex than those of a county seat.

Speaking of which, Huang Qiangmin is actually a big figure in Ningtai County. Although there is a mother-in-law above him, and there are brothers beside him, regardless of seniority or work content, he is considered a big brother in the front.

Yu Wenshu, the detachment captain of this Criminal Investigation Detachment, is not that happy. Beside him are the Economic Investigation Detachment, the Public Security Detachment, the Anti-Drug Detachment, the Cyber Security Detachment, the Detention Center, the Internal Security Detachment, and the Traffic Police Detachment and Special Police Detachment with the largest number of people. In addition, parallel offices can pull out two digits, such as the Legal Affairs Office, Household Registration Management Office, Science and Communication Office, etc.

And above him, the number of bosses is several times that of the county bureau.

At the same time, the districts and counties under Changyang City also have their own district bureaus and county bureaus, and their power may be heavier than Yu Wenshu's.

In addition, the provincial department, this big mother-in-law, will also show her presence from time to time.

And this is also the reason why Yu Wenshu especially needs Jiang Yuan.

Provincial capital city, fierce competition, it is not easy to stand out. Yu Wenshu, this Criminal Investigation Detachment captain, does not do well or badly, or slightly better, which cannot be reflected.

But continuously solving 4 cold case homicides, and the current case is also a 100% completion rate, this can be considered a fruitful result.

Next year, if he can maintain this momentum, Yu Wenshu feels that his life may be more open.

Jiang Yuan roughly knows some of the complex situation in the provincial capital. But he was sold over, so he doesn't need to care about so many interpersonal relationships. As a third-level police inspector, in terms of rank, it is lower than the police ranks of Wang Chuanxing and Tang Jia, so just do things.

"427 Drunken Death Case, the specific case, Wang Chuanxing, put it on the projector for everyone." Jiang Yuan didn't even take out a USB flash drive and began to give orders.

Fortunately, Wang Chuanxing really knows how to use these office equipment and software, immediately connected his computer to the projector in the new office, and quickly found the details of the 427 Drunken Death Case.

During this period, Jiang Yuan was not idle either, saying to himself: "The deceased Wang Jun, 41 years old, died on April 27 last year... The case file says 8 to 10 days, this time is wrong, it should be at most 6 days, very likely only 5 days and a bit."

"In short, after many days of death, Wang Jun's body was found in a house on the hillside outside the village, with traces of being moved. At the same time, the deceased had fecal incontinence, the anal sphincter was relaxed, and the anal swab and deep swab anti-human sperm pre-test were all positive, and male DNA typing other than the deceased himself was detected."

Jiang Yuan described the general case, and Wang Chuanxing's projector was also set up, and more content was displayed on the curtain.

Some people were reading by themselves, and some couldn't help but discuss: "Does it mean this is a rape-murder case?"

"The deceased is 41 years old, and looks... like a pretty good middle-aged person, but not to the point of causing people to commit crimes, right? Is the deceased gay?"

"The deceased has a junior high school education and has lived in the countryside for years. Is the countryside playing so openly now?"

Jiang Yuan waited for everyone to look for a while, discussed for a while, and signaled Wang Chuanxing to turn the page.

To a picture of the body, Jiang Yuan said: "The photos taken here are all very clear. You can clearly see the 3rd instar larvae of the blowfly here, and there are other larvae and pupae of the maggot-disease fly. According to the temperature at the scene, judging by the blowfly as the indicator species, the time of death 5 and a half to 6 days is more accurate."

Using forensic entomology to judge the time of death of a body is a very useful means in cases where the time of death is relatively long.

Moreover, the development of forensic entomology is already very full. It can not only judge the time of death according to the growth and development laws of necrophagous insects, but also advance to the succession of insect communities, individual growth and development, including the seasonal characteristics of insects, and various other biological characteristics.

Of course, there are many complex situations here. Just the classification of insect species, etc., is a specialized subject.

"The forensic doctor of the current case judged it to be 8 days, is there a two-day gap?" Wan Baoming is the deputy director of the Criminal Science Center and had to help his own family ask a question.

"It should be about 3 days difference. The difference mainly lies in the time the necrophagous insects arrived at the body. In low temperature, the arrival time of the blowfly will be delayed. In addition, this body was also moved. The coverage of the body at the first scene might be relatively large." Jiang Yuan explained roughly, and added: "This leads to a problem."

Everyone naturally looked at Jiang Yuan, and no one discussed the content of forensic entomology with Jiang Yuan. The difficulty of this thing is comparable to forensic anthropology, and most of the people present only knew about forensic medicine on the surface.

Jiang Yuan flipped through the case file and said: "The person in charge of the case at that time, based on the victim's time of death, set the time of the case mainly before April 21, and focused on the three days of 17, 18, 19. And judging by the new time of death, the victim hadn't died yet at this time."

"The victim went missing on April 17, which is also a very important point when determining the time of death." Wan Baoming seemed to be explaining for the previous generation of forensic doctors, but in fact, he was endorsing Jiang Yuan.

The judgment of the victim's time of death might be more based on the fact of disappearance, and not a completely scientific judgment based on forensic medicine.

Thinking this way, everyone was more willing to accept Jiang Yuan.

Jiang Yuan didn't talk nonsense either, and said directly: "I lean more towards the victim dying on April 22."

"Missing on April 17, died on April 22, where did the deceased go during these 5 days?" Wan Baoming scratched his head.

Many criminal police present were scratching their heads.

"I think we can follow this direction and look for it." Jiang Yuan said: "The deceased must have a place to stay, and he only brought very little money when he went out, and he said he went out to buy cigarettes. In this case, someone should have taken him away, very likely an acquaintance."

"The investigation direction of the original task force was stranger crime, similar to rape-murder. These are two lines of thinking." Yu Wenshu frowned slightly, then relaxed.

If the investigation direction of the current task force was indeed wrong, then the probability of this cold case being solved would be greatly increased.

Jiang Yuan nodded and said: "The original investigation direction assumed the deceased was raped and then killed. The crime scene is close to the body abandonment site, so the deceased naturally didn't need money, didn't need accommodation, etc."

"However, if the time of death is changed, the deceased couldn't have stayed outside the village for 5 days without going home. The reason that prompted him to leave was very likely the appearance of an acquaintance."

Everyone listened to Jiang Yuan's words and nodded, their emotions slightly excited.

Acquaintance, at least the number is limited. Check the interpersonal relationship again, and maybe there will be a harvest.

"Should we check the interpersonal relationship again?"

"Okay."

"Since he left the village, we can check the monitoring records before and after he left. I'll ask the Image Investigation Detachment."

"Okay."

"Should we check the interpersonal relationship again?"

"Okay."

The members of the task force, you say a word and I say a word, and they assigned the tasks themselves.