Many people came to visit this time, including not only the leaders of Ningtai County’s directly-administered agencies, but also leaders from various employers, as well as some media and non-police personnel.
Those who are thoughtful will take the initiative to stand up, smile before saying anything, and say: "Director Jiang, are you going to dissect the corpse on the spot? Well... some of our comrades here today may not be used to this kind of activity..."
The person in charge of the Taihe working group is the director, so Jiang Yuan can now be called the director.
Jiang Yuan walked up to the corpse at this time, shook his head, and said: "We won't do an on-site autopsy on the corpse. I recently did some research on the fingerprint identification of the drowned corpse and wanted to show it to everyone. Because it is Taiwan
Many of the cases encountered by the river working group involve drowned bodies."
"That's good. However, those who are not police officers and are not used to corpses can leave first." The leader from the provincial department was very pleasant.
Jiang Yuan took advantage of this time to slowly put on latex gloves and began to examine the objects next to the dissecting table.
No one left the scene.
Even the media reporters who came along were knowledgeable. Even if they were a little uncomfortable with corpses, they could at least hold on for a while.
Jiang Yuan was ready, coughed twice, and said: "This body was found on the south side of the Taihe River four days ago, and it happened to be delivered here today. The body is male, and the corruption is serious... We are now trying to extract from the body
Take fingerprints."
As Jiang Yuan spoke, he activated the temporary skill +1.
As a result, the fingerprint analysis method of LV6 that was just obtained reached LV7 on the spot.
This level is already a bit unreasonable. The dog rice at LV6 can make the police dog give up the establishment, and the fingerprint analysis method at LV7 even made some impressive fingerprints that he had done before appear in Jiang Yuan's mind.
This is already a bit like Xu Limin in the Eight Tigers of Criminal Investigation. When he was young, he memorized more than 30,000 fingerprints. It is a natural talent. This is not the same as a photographic memory, because he obviously does not have such ability to read words.
ability.
As for Jiang Yuan, he had already tried LV6's fingerprint analysis method yesterday and had taken fingerprints from corpses, so he was no stranger to the current work.
Of course, the difficulty is not small.
The corpse found in Changyang City four days ago was sent here decisively by the Criminal Investigation Center of the provincial capital after it found that it could not be dealt with. Even so, the degree of corruption was relatively deep. If it was left to the former Jiang Yuan, it would be impossible to collect fingerprints.
Already.
"Generally speaking, we will try to remove epidermal gloves from corpses with severe decay. The forensic doctor at the discovery site has already tried this method, but without success." Jiang Yuan made preparations while giving a brief introduction.
"Skin gloves are the kind that peel off the skin of a corpse and put them on the hands to check fingerprints?" Wu Zhisu, the leader of the Criminal Police Detachment of Jianjiang City Bureau, was very interested in this and asked immediately.
Many people with police experience have heard of epidermal gloves, but not many have seen them, especially criminal policemen below the provincial capital level. If the local forensic doctors are not particularly strong, they will not be able to do such tricks.
Jianjiang City is densely covered with water networks, including rivers, lakes, swamps, and mountains. It has always been a gathering place for water bandits and bandits, and the folk customs are fierce. Although there are no professionals anymore, the number of murders is not small at all.
Jiang Yuan also committed many cases there, including serial murders.
Wu Zhisu is also a policeman who likes new technologies and is very aware of the difficulty of leather gloves.
Jiang Yuan nodded and said: "After the corpse decays, the epidermis will peel off from the dermal tissue. Through this characteristic, we can peel off the corpse's epidermis from the fingers like a glove to form an "epidermal glove." The peeled off epidermal gloves,
Rinse it with clean water and soak it in glycerin. If the papilla pattern on your finger is complete and clear, you can put it on a living person's hand and apply ink to stamp it."
If you say the same thing in Shang K, you will probably get comments like "Oh, how disgusting", but in the forensic building of the police station, whether it is a tall man or a dignified and beautiful woman, they are all elongated.
The neck looked up.
Then, I heard Jiang Yuandao: "However, because the hand decay of this corpse is too serious, it has basically lost the conditions for making epidermal gloves, so we can only use other methods to make it."
"In what way?" The reporters at the scene had already started taking pictures after getting permission.
"Although the skin of the corpse is seriously rotten, according to my observation, it has not completely rotted away. It can only be broken into pieces. We can try to splice it together. However, there is no mature technical solution for this method." Jiang Yuanbian said.
While doing it.
The reporters were a little confused and couldn't help but whisper to the police officers they knew well.
Upon seeing this, Wan Baoming from the Changyang Criminal Science and Technology Center stood up and said: "Team Jiang, Director Jiang uses a very difficult fingerprint sampling method. Let me briefly introduce it to you."
His identity was the most suitable. The leader of the provincial department smiled warmly: "I want to hear it too."
Wan Baoming then stood up and said a few words of humility before saying: "Take fingerprints from the corpse. According to the degree of decay of the corpse, we generally divide it into four levels. The first level is the corpse formed by rigor mortis, that is, the fresh corpse.
Fingerprints, this is the easiest. The second level is the fingerprint imprint of a stiff corpse. The main difficulty here is that the fingers of the corpse are stiff, so that the opening of the fingers is not ideal."
Wan Baoming said: "There are many ways to deal with rigor mortis. For example, you can soak it in hot water and rub it with your hands to relieve rigor mortis. It is not difficult to obtain fingerprints from second-level corpses. What we usually do is
Much."
Wan Baoming: "The third level is the shrunken corpse. This is mainly because the corpse is dehydrated, and the treatment plan is usually to inject liquid corpse wax or glycerin. It is difficult to obtain fingerprints from this type of corpse. Our Changyang Municipal Bureau does it
There are relatively many fingerprints of this type, and we often undertake identification tasks sent by other units."
He said this, and anyone who knows it or doesn't know it will understand that the third type of fingerprint acquisition method is already the ceiling in Shannan Province.
"The fourth level is the epidermal gloves just mentioned. The principle of epidermal gloves is simple to say, but it is really not easy to do. It is very difficult, the failure rate is also high, and it often depends on luck. Our Changyang Municipal Bureau has successfully done it
There are not many examples." Wan Baoming paused, and then said: "The current condition of this corpse is that even epidermal gloves cannot be made. This actually exceeds the average forensic technology."
Wan Baoming thought for a while and then said: "As far as I know, it is basically possible to achieve the fourth level in China. What Team Jiang is doing now, no one in the country has done it."
"It is still made, but there are relatively few examples." Jiang Yuan took over at this time and introduced while working: "I have now found a few remaining pieces of epidermis, and I initially judged that they belong to the index finger, because the epidermal tissue
It is already very thin, and it will easily shrink if treated with regular saline or formalin, so I tried rinsing it directly with water."
Jiang Yuan bent over and operated carefully, but could not see the specific movements clearly.
"Okay, now I will put this piece of epidermal tissue on a glass slide and take photos to fix the evidence." After Jiang Yuan said this, he picked up the camera, took the photos himself, and then looked at the photos.
Jiang Yuan said it simply, but after all, this is not a simple technical seminar. For the police present, this is a practical operational performance, and it is a technology that everyone can enjoy after joining the Taihe Working Group.
Serve.
Thinking of this, many people have already taken out their mobile phones and began to silently contact knowledgeable people.
