wavenovel Chapter 1033 Leather Gloves
Chapter 1033 Leather Gloves
Chapter 1033 Leather Gloves
There were many people visiting this time, including not only leaders of Ningtai County’s directly-managed agencies, but also leaders from various investors, as well as some people from the media and non-police systems.
Someone who was smart took the initiative to step forward, smiled before speaking, and said, "Director Jiang, are you going to dissect the body on the spot? Well... some of our comrades who came 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 also be called the director.
Jiang Yuan walked over to the body at this time, shook his head, and said, "I won't be dissecting the body on the spot. I recently did some research and industry learning on fingerprint identification of drowned bodies, and I wanted to show it to everyone. Because we are the Taihe Working Group, many of the cases we encounter involve drowned bodies."
"That's good. However, those who are not police officers and are not used to handling corpses can leave first." The leader from the provincial department was very friendly.
Jiang Yuan took advantage of this time to slowly put on latex gloves and began to check the objects next to the dissection table.
No one left the scene.
Even the media reporters who came with them were knowledgeable. Although they were a little uncomfortable with corpses, they could at least hold on for a while.
Jiang Yuan was ready. He coughed twice and said, "This body was found on the south side of Taihe River four days ago and was brought here today. The body is a male and is severely decomposed... We are now trying to get fingerprints from the body."
While Jiang Yuan was speaking, he directly activated the temporary skill +1.
In this way, the fingerprint analysis method that had just been acquired at LV6 soared to LV7 on the spot.
This level was already a bit unreasonable. The dog food at level 6 could make a police dog give up its job, and the fingerprint analysis method at level 7 even made Jiang Yuan recall some of the most impressive fingerprints he had done before.
This is a bit like Xu Limin, one of the Eight Tigers of Criminal Investigation, who memorized more than 3 fingerprints when he was young. It was a natural talent. This is different from a photographic memory, because he obviously does not have such an ability when reading text.
As for Jiang Yuan, he had tried the LV6 fingerprint analysis method yesterday and had also collected fingerprints from the corpse, so he was not unfamiliar with the current work.
Of course, it's not easy.
The body found in Changyang City four days ago was sent here by the Criminal Investigation Center in the provincial capital because they couldn't handle it. Even so, the degree of corruption was relatively deep. If it was given to the previous Jiang Yuan, it would be unlikely to take fingerprints.
"Generally speaking, for bodies that are severely decomposed, we will try to take the epidermal gloves. The forensic doctor at the site of discovery has already tried this method, but without success." Jiang Yuan gave a brief introduction while making preparations.
"Epidermal gloves are the kind that are made by peeling off the skin of a corpse and wearing them on your hands to leave fingerprints?" Wu Zhisu, the captain of the Criminal Police Brigade of Jianjiang Municipal Public Security 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 police below the provincial capital. If the local forensic doctors are not particularly strong, they cannot do such fancy things.
Jianjiang City is densely covered with rivers, lakes, swamps and mountains. It has always been a place where bandits and bandits gather, and the people are fierce. Although there are no professionals now, the number of homicides is not small at all. Jiang Yuan has also committed many cases in the area, and there are serial murders.
Wu Zhisu is also a policeman who likes new technologies and is well aware of the difficulty of making leather gloves.
Jiang Yuan nodded and said, "After the corpse decays, the epidermis will peel off from the dermis. Using this property, we can remove the epidermis of the corpse from the fingers like gloves, forming "epidermal gloves." After the peeled epidermal gloves are rinsed with clean water and soaked in glycerin, if the papillary patterns on the fingers are intact and clear, they can be worn on the hands of living people and printed with ink."
If you said the same thing in a shopping mall, you would probably get comments like "Ugh, how disgusting!", but in the police station's forensic building, both tall and strong men and dignified and beautiful women stretched their necks to look.
Then, Jiang Yuan said, "However, the hands of this corpse are too severely decayed to be suitable for making skin gloves, so we can only use other methods."
"What method?" Reporters at the scene had already started taking pictures after getting permission.
"Although the skin of the corpse is severely decayed, from my observation, it has not completely rotted away. It is only broken into pieces. We can try to piece them together. However, there is no mature technical solution for this method." Jiang Yuan said as he did it.
The reporters were a little confused and couldn't help but whisper questions to the policemen they knew.
Seeing this, Wan Baoming from the Changyang City Criminal Science and Technology Center stepped forward and said, "Captain Jiang, Director Jiang uses a very difficult fingerprint sampling method. Let me briefly introduce it to you."
His identity was the most suitable, and the provincial department leader smiled warmly: "I want to listen to it, too."
Wan Baoming then stood up and said a few humble words before saying, "When taking fingerprints from corpses, we generally divide them into four levels, depending on the degree of decay of the corpse. The first level is the fingerprints of corpses that have not yet formed rigor mortis, that is, fresh corpses. This is the easiest. The second level is the fingerprints of stiff corpses. The difficulty here is mainly because the fingers of the corpse are stiff, so the fingers cannot be opened well."
Wan Baoming said: "There are many ways to deal with stiff corpses. For example, you can soak them in hot water or rub them with your hands to warm them up. These can relieve the stiffness of the corpse. It is not difficult to obtain fingerprints from second-level corpses. We usually do this a lot."
Wan Baoming: "The third level is the shrunken corpse. This is mainly because the corpse is dehydrated, and the treatment plan is generally to inject liquid corpse wax or glycerin. It is quite difficult to obtain fingerprints from this type of corpse. Our Changyang Municipal Bureau handles relatively more fingerprints of this type, and often undertakes identification tasks sent by other units."
After he said this, everyone, whether knowledgeable or not, understood that the third type of fingerprint acquisition method was already the ceiling for Shannan Province.
"The fourth level is the epidermal gloves we just mentioned. The principle of epidermal gloves is simple to say, but it is really not simple to make. It is very difficult and has a high failure rate. In many cases, it depends on luck. We don't have many successful examples in Changyang City Bureau." Wan Baoming paused and continued: "The current condition of this corpse makes it impossible to make epidermal gloves. This is actually beyond the general forensic technology."
Wan Baoming thought for a moment and then said, "As far as I know, the country can basically reach the fourth level. What Captain Jiang is doing now should not be done by anyone in the country."
"It has been done, but there are relatively few examples." Jiang Yuan took over the conversation and introduced while working: "I have found a few pieces of remaining epidermis. I preliminarily judged that they belong to the index finger. Because the epidermis is already very thin, it is easy to shrink if treated with conventional saline or formalin, so I tried to rinse it directly with clean water."
Jiang Yuan bent over and operated carefully, but he couldn't see the specific movements clearly.
"Okay, I will now put this piece of epidermal tissue directly on a glass slide and take a photo to record the evidence." Jiang Yuan said this as he picked up the camera, took the photos himself, and then started to look at the photos.
Jiang Yuan said it simply, but this was not a simple technical discussion after all. For the police present, this was a practical operational demonstration, and it was a technical service that everyone could enjoy after joining the Taihe Working Group.
Thinking of this, many people have already taken out their mobile phones and started silently contacting people who know the business.