The computer is rumbling and the desktop is a mess.
Wang Zhong actively searched for eucalyptus, but the actual efficiency was not high.
Mainly because pieces are not classified by footprints.
As a type of evidence, footprints are relatively easy to use. Imagine that there is a footprint in a piece of evidence that is consistent with the pattern and wear on the suspect's feet. This can prove that the suspect has been at the crime scene.
.
However, when footprints are used as clues, the actual footprints are okay, but the accumulated footprints are a little bit insufficient.
Because unlike DNA and fingerprints, which have corresponding databases, there is no database for footprints.
At this stage, the police database only contains the footprints discovered at the scene. Basically, they can only be used one by one.
Jiang Yuan looked at Wang Zhong's operation and lost his temper for a while, saying: "How about this, just release the pictures of the footprints separately, I think it seems okay just now?"
"Does it mean you can only look at the pictures of the footprints? Do you want to look directly at the gallery?" Wang Zhong didn't quite understand.
Jiang Yuan nodded: "Yes, just pictures of footprints."
"This... can you do it without looking at the eucalyptus?"
"I'll first find a footprint I like, and then look at the eucalyptus," Jiang Yuandao said.
"Okay." Wang Zhong didn't know what kind of footprints Jiang Yuan liked, so he found the gallery of footprints and flipped through them one by one.
Jiang Yuan stood in front of him, looking at the footprints in the picture, and information kept pouring into his mind.
height!
weight!
age!
Foot shape characteristics!
Gait characteristics!
Signs of wear!
Jiang Yuan wanted to find a special footprint.
It is still difficult to use footprints to break the dirt. Jiang Yuan does not pursue breaking every dirt at the sight of a footprint, which is unrealistic.
However, Jiang Yuan believed that with such a large photo gallery and so many on-site footprints, one or two strange things would always be found.
"I'll do it myself." Jiang Yuan saw that Wang Zhong didn't do any other operations, so naturally he wouldn't need to keep pressing buttons there, which would also affect his own performance.
Jiang Yuan occupied Wang Zhong's position and continued to scan pictures slowly.
Wang Zhong was so happy.
I just watched Jiang Yuan's movements from the side and thought to myself:
Is it really just the level of doing homework after class?
I guess I learned it now, otherwise, it is impossible that I have never used it before.
Therefore, the techniques currently learned should not be very good.
Just as Wang Zhong was thinking about pulling away, Jiang Yuan pushed the chair and stood up with a squeak.
"Put this piece out and take a look." Jiang Yuan gave up his position and motioned to Wang Zhong to operate it. He was not very familiar with the software here.
Wang Zhong glanced at the picture of the footprints, his eyes couldn't help but condense, and he asked in surprise: "Blood footprints?"
Yes, what you see in the picture in front of you is a pair of bloody footprints.
As we all know, it is not easy to make a bloody footprint from a minor injury.
As for heavy damage and life, plus a build-up component, it is definitely difficult to break.
Even if it was easy to break the eucalyptus back then, it is probably not easy to break now.
Wang Zhong sat back down, opened the file, read two sentences carefully, and then quickly gave it to Jiang Yuan.
Yan Ge, who was also in the office, heard the bloody footprints and got up and walked over to take a look.
Jiang Yuan sat down unceremoniously and looked at the eucalyptus.
The situation is not complicated. In a family named Yang in Shanghe Village on the outskirts of the city, the man in his prime was found dead at home. The murder weapon was a sickle owned by the family. There were blood stains on the sickle but no fingerprints.
In addition, no usable fingerprints or DNA were collected at the scene, but there were a large number of footprints.
The direction of the investigation was initially suspected to be a dispute among the villagers, so everyone in the village was interviewed and a record was made. The footprints of the entire village were also collected and compared, but nothing was found.
Later, the investigation direction turned to burglary. It is speculated that after the thief was discovered, he escalated to murder in panic and escaped.
The criminal police officer in charge then scanned all the thieves nearby and focused on tracking down thieves who were active in the early stage but disappeared later, but still could not solve the problem.
Jiang Yuan looked at all the bloody footprints, and then opened the analysis of the footprints.
Not surprisingly, the footprint analysis contained in it is over a hundred words long, and it was obviously analyzed by experts.
"Chen Wenming, the trace inspector of our Qinghe Municipal Bureau, is quite famous for making footprints. This footprint was made for him." It was less than 10 years ago, and Yan Ge remembered the footprints clearly.
They were all handled by him.
Jiang Yuan said "En" and first glanced at the conclusion:
Height: 178-185 cm.
Age: Between 18-23 years old
The direction of the rising and landing feet is the same; the shape of the plantar indentation on the plantar surface of the foot is basically the same as that of the indentation.
The weight is not judged, but the age judgment is relatively long: in the footsteps, the stride length is larger, the movement is neat and powerful, the step angle is small, the step width is narrow... The heavy pressure point of the indentation is on the inside of the forefoot, and the indentation is towards the front...
…The estimated age is between 18 and 23 years old.
Height is judged by the length from the front edge of the toe indentation to the rear edge of the heel indentation. In other words, the height is judged based on the length of the foot.
This is inconsistent with Jiang Yuan's judgment of the footprints.
However, it is appropriate if there is a discrepancy. If it is completely consistent, then Jiang Yuan's judgment will theoretically not be helpful to the situation.
"Let's see who the policeman in charge is. I'll call him for consultation." Jiang Yuan made a very humble expression.
This time, Wang Zhong saw through Jiang Yuan's "humility" at a glance. When he found the phone, he carefully reminded: "This is Captain Wu of the First Squadron. Captain Wu has a bad temper. Don't speak too bluntly."
"Okay." Jiang Yuan was also impressed by the tall and thick-waisted squadron leader Wu Junhao.
The call was dialed, and Wu Junhao's loud voice came from the phone: "Forensic Doctor Jiang, do you have anything good to do to take care of me, brother?"
Jiang Yuan frowned and glanced at the screen, then simply put the phone on speakerphone, and then said: "Team, I saw an accumulation here, which you handled before, and I want to know the situation with you."
"Oh, you said... follow that bastard and go around from the front!" Wu Junhao roared, then changed his voice and said with a smile: "I'm arresting someone, you say."
Jiang Yuandao: "Do you still remember the murder of Yang Gan in Shanghe Village?"
Wu Junhao was obviously taken aback: "Why are you talking about this news all of a sudden? What is your connection with it?"
"I saw the footprints of this eucalyptus, and I think the height of the murderer should be very special. In my judgment, the height of the murderer is probably 193 centimeters. A very conspicuous height." This is the reason why Jiang Yuan chose this eucalyptus. .
The average height of people in Shannan Province is quite high, and men over 180 centimeters can be seen everywhere on the streets. But no matter what, 193 centimeters is a height that stands out from the crowd, and can greatly narrow the scope of suspects.
On the phone, the whirring sound of running suddenly disappeared.
Wu Junhao asked: "193 centimeters is quite high. Chen Wenming judged it to be 180, maybe 185. How sure are you..."
Jiang Yuandao: "The length and width of sports shoes are slightly larger than leather shoes. Of course, this is a non-essential difference..."
"But from this point of view, I think the sneakers the murderer wore that day were too small..."
"In addition, the size of the murderer's feet may be smaller than normal..."
Jiang Yuan stopped here and asked directly: "When you were doing this, were there any suspects with a height of 193cm?"
Wu Junhao was probably lost in memories.
a long time.
Along with the noise on the phone, Wu Junhao said: "I have to go back and read my notes."
Jiang Yuan reminded: "If it's 193 centimeters, you should have an impression when you see it."
"Well, let me take a look at the notebook." When faced with the specific case, Wu Junhao suddenly became serious.
Jiang Yuan had no choice but to agree, and then he thought of movies and TV shows, in which those who went to get important evidence were always beaten to death in time... and he quickly warned: "Please pay attention to your safety."
"Okay." Wu Junhao responded loudly, took away his phone, and shouted: "Catch that little bastard. If you can't catch him, you won't be able to eat!"
"This kid can run faster than a rabbit."
"Then you should act like a dog and block him up!"
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