"Jiang Yuan, what are you busy with?" Wang Zhong knew that Jiang Yuan was back and calculated that Wu Jun's superstitious ceremony was over, so he strolled over, looking like a civil servant with nothing to do.
Jiang Yuan said "Yes" and said: "I found a set of pictures to look at."
"Hey, a set of pictures?" Wang Zhong became more energetic and smiled: "I'll just say..."
He looked like a fellow man and moved behind Jiang Yuan's desk. He saw on the big screen that a door was half-open, and there were bloodstains all over the light and dark.
"I'm going!" Wang Zhong almost jumped up.
It's not that he's afraid. People who have been on the scene a few times have gone through everything. It's just that the pictures don't match expectations...
Wu Jun raised his head and glanced at Wang Zhong dissatisfied. He was also a young man, and Wang Zhong was a few years older, but he just couldn't do things well. When it came to business, he was always at the end of the queue, and the traditional virtue of respecting the old and caring for the young was not the same.
Very understanding, very out of the box in what he says and does...
"The backlog of cases from thirteen years ago." Jiang Yuan introduced it.
Wu Jun on the other side of the desk heard this and couldn't help asking: "Which one?"
Jiang Yuan immediately realized that the backlog of murder cases thirteen years ago had all been handled by Wu Jun.
Jiang Yuan immediately acted obediently and said: "611 He Jingqin case, there was a lot of blood at the crime scene..."
"I have the impression that some of the photos were taken by me." Wu Jun stood up and walked over.
Standing behind Jiang Yuan, Wu Jun lit up another Chinese medicine, spit it out gently, and said: "You don't have to be mentally burdened. It's a good thing that you choose to do these murder cases now. While I'm still here, maybe you can still remember it."
Order something. Later, when I retreat, people from all over the country will go to the north and south to have fun. Where can you ask people?"
"I'll just call you when the time comes." Jiang Yuan grew up eating hundreds of meals in the village, so he still knows what to say.
Wu Junchang thought about his retirement life, nodded with satisfaction, and said: "That's okay. If the old woman doesn't let me smoke anymore, I will say that I must smoke to think about the case. Hey, I can get two or three cigarettes back with this."
"
Jiang Yuan felt inexplicably sad when he heard this, and thought to himself: After all, Guan Erye smokes more cigarettes than you.
After the chat ended, Jiang Yuan continued to swipe pictures one by one.
Wu Jun looked at him without saying a word and just smoked. From time to time, his eyes would cross the smoke ring, as if he was thinking about something.
Wang Zhong just looked at it dumbly. He was a trace examiner, and he could also dabble in blood stain examination. However, there is a saying that blood stains were learned at the level of LV1, that is, looking at the location of the splash, etc., and left the current case.
On site, it basically has no effect.
Not to mention, Wang Zhong's bloodstain science is probably at the LV0.3 level - probably capable of distinguishing the obviously abnormal murderer's bloodstains.
After he graduated from the police academy and took the joint entrance exam to join the workforce, the number of violent crimes had been very small, and even fewer involved blood stains, so he had no place to study.
In fact, nowadays, there is a surplus of talents in this field.
The supply of violent cases cannot keep up. In the past, blood stains were examined and no one died. Occasionally, there would be a case where blood was all over the floor. The blood stain experts from the municipal bureau and the provincial department would rush over as if they had smelled it, but nothing happened.
Wang Zhong’s training environment.
"There are bloody footprints here." Wang Zhong looked at it for a while and finally saw something familiar.
Jiang Yuan still said "En" and crossed the picture again.
"Is it useless?" Wang Zhong asked.
"I don't know." Jiang Yuan breathed out and gave his master a cigarette, Wang Zhong a cigarette, and himself a cigarette, firmly using his cigarette to resist the second-hand smoke.
Wang Zhong took a deep breath and said, "If you don't know it, you probably can't find anything about this footprint."
"It's been too long, and I can only make some basic judgments with this kind of featureless footprints." Jiang Yuan saw that Wang Zhong was interested, so he took a notebook, opened a blank page, and wrote:
"The suspect is about 25 to 30 years old, male, 170 to 175cm tall, and 120 to 140cm tall."
These are all very common values.
What Jiang Yuan wrote is meaningless.
These values can be said to be the most common values for Chinese men. Of course, the average height of today's young people has increased a lot, but not enough of them have entered the criminal market.
Wang Zhong somewhat understood what Jiang Yuan meant, and nodded: "So, not much information can be extracted from the footprints."
"Not necessarily." Jiang Yuan put down his pen, flipped through a dozen photos in succession, and said, "You can see his gait here."
He found a few photos that he had just seen.
While letting Wang Zhong look through the photos, Jiang Yuan recorded the numbers of the photos, then put down the pen and asked Wang Zhong, "Do you see anything?"
Wang Zhong looked confused, just like when he saw the bloody footprints.
Jiang Yuan intended to teach him something, so he said: "The most basic teaching of footprints, you memorize it. First, look at the outline from a distance, look at the wear and tear up close, combine measurement with observation..."
Wang Zhong silently recited.
Silly look.
"Second, first look at the size of the footsteps, and secondly, look at the footing. The shape of the feet is very important. Look for the four areas one by one. Make good use of edge features. Don't forget to make a comprehensive analysis." Jiang Yuan said, writing these two paragraphs on his notebook.
Write it down and ask Wang Zhong again: "Do you remember it?"
Wang Zhong was confused.
If he had a photographic memory, he would have taken off long ago.
Jiang Yuan then tore off the record page from the notebook where he had just written two paragraphs, handed it to Wang Zhong, and said, "Go back and take a look."
"Well..." Wang Zhongmo read it over and asked in a low voice: "What are the four areas?"
"Refer to the toes, soles, arches and heels." Jiang Yuandao: "Now that I know how to memorize it, look at some photos and compare old cases. Put your fingerprint experience to use and you will be able to practice it soon."
Wang Zhong nodded repeatedly.
When Wu Jun saw that they had finished speaking, he put away his cigarette and asked, "What can you tell from the gait?"
"It can be seen that this person has a good psychological quality." Jiang Yuan took out the picture just now and said: "Look at these few steps, the stride length has basically not changed."
Wu Jun and Wang Zhong both looked at and nodded.
"There are still traces of dragging here." Jiang Yuan sighed, pointed to another picture, and said: "The murderer probably knocked the victim down. The victim was still struggling, so he dragged him to the rooftop. Even so, it was
Step by step, the steps are equal."
“Very calm.”
"Yes, so it is very likely that he is a habitual criminal." Jiang Yuan wrote these two words in his notebook and said: "If I make a bolder guess, I think it is possible that he is a person who has been released from prison."
Wu Jun suddenly became energetic and said: "What you said makes sense. Whether you have been in prison or not, your mentality is different. If the victim is still struggling and screaming, he can still take it easy. Then he has probably been jailed.
He is in prison and may have experience in violent crimes."
"It's not necessarily a violent crime." Jiang Yuan slightly corrected Wu Jun's words and added: "Judging from the blood stains, I think it is more likely to be a sexual crime."
"Why? I remember... this girl was not sexually assaulted." Wu Jun frowned.
Now looking at the pictures from the scene, he can gradually recall the details of the case. Although 13 years ago was a long time ago, the murder left a very deep impression on people.
Jiang Yuan selected a few pictures, then sorted out the order, and said: "The central scene is on the rooftop, but the victim cannot go to the rooftop voluntarily, so the murderer should use coercion and inducement from the beginning, at least until the fire department
He took out the knife from where the door was."
Wu Jun said "yes" and listened.
Jiang Yuan pointed to the blood stain and said: "If the purpose is to kill someone, since he took out the knife, he can just stab him. Going to the rooftop is actually not necessary. If he has had similar experience, he should know
, going to the rooftop, the risk will be even greater. In addition, he dragged the other party to the rooftop, what is the purpose?"
"The purpose is to rape?"
"Yes." Jiang Yuan said with certainty: "Moreover, it is very likely that there was an obscene act in the elevator. Because the girl lives on the middle floor and went to the top floor, it must be the murderer."
"That makes sense."
"Also, I think the murderer's original purpose may have been obscenity. Because the crime scene was in the victim's own building, this reason can also explain why he finally gave up on rape. He should still feel the risk, and finally
Give up the act of rape."
Wu Jun did not insist on his own opinion. In contrast, he still trusted Jiang Yuan's judgment more.
Seeing that Jiang Yuan had sorted out his thoughts, Wu Jun said decisively: "Your judgment is very important. I think there is a basis for restarting the case. Call Lao Huang."
