Mu Yuan's gaze fell on the ground again, and he continued: "As for the situation you just said about bringing a basin of water, this possibility does exist. But the starting point for this type of footprint is either in the kitchen or in the bathroom. But if you look at the footprints in this line, they go straight from the door to the balcony. Then it turned back again. ”

Li Jun stared at the row of footprints on the ground, his eyes wide.

"This row of footprints...... Is there any difference with other footprints?"

Team Yuan was also a little stunned, and after watching it for a long time, he also followed: "I don't see any difference, can Team Mu help explain?"

"These footprints, all of them have striped soles. Because the sole of the slipper is generally softer, the stripes will be slightly wider in the parts that are stressed and the stripes will be relatively narrower in the parts that are less stressed. And everyone's walking posture is different, some people take a step forward, is the sole of the foot on the ground, so that the force is more even, and some are the heel first to the ground, so the heel force is greater. Similarly, if the forefoot lands first, the center of gravity will also fall on the forefoot. In addition to the difference in the front and rear forces, the left and right forces may also be different. As long as a person does not deliberately control his pace, this law is fixed. You look at these two footprints, one is heavier on the inside, and the other is heavier on the outside. If there is an occasional footprint like this, it may be because the owner of the footprint is standing in place and the center of gravity is offset. But if you look at the heavier footprints on the outside of this row, they are all the same. ”

Li Jun was very surprised, and said with a wry smile: "How do you see that the width of this line is different?"

In normal operation, if you want to make such traces, you generally need to shoot them with a high-pixel camera, and then get them back and analyze them with software.

Of course, this kind of analysis can at most analyze the appearance, that is, the width and narrowness of the stripes, and what conclusions will be drawn due to the different widths of the stripes, then you can't rely on the computer, you can only rely on the human brain.

But now, listening to the meaning of Mu Yuan's words, he can see the subtle differences between this line with his naked eyes, which is too awesome, right?

"I have a natural sense of size, thickness, width, etc. Mu Yuan said lightly, "Maybe it's because of this, so I'm also good at making analog portraits." ”

Li Jun was stunned for a moment, he had also heard about Mu Yuan's mock portrait.

He is engaged in criminal investigation technology, and simulated portraits can also be regarded as a category of criminal investigation techniques, and the two major cases that Mu Yuan cracked before were mainly completed through simulated portraits, which caused a lot of repercussions in Xihua City.

Naturally, he paid special attention to this.

Is there just a connection between the simulated portrait and the observation of the current survey?

To be honest, Li Jun is not sure about this.

However, if you think about it, this is indeed not an impossible thing, and some people are born with an extremely sensitive sense of "width and narrowness", which can be seen with the naked eye.

It's just that this kind of seeing is more of a perceptual feeling, but I can't say how wide or narrow it is.

But in this situation, it is enough to be able to perceive the difference between width and narrowness.

Li Jun had such an idea, and Yuan's brigade was similar.

It's just that compared to Li Jun's doubts from a purely technical point of view, Team Yuan chose to question and follow the other party's train of thought first.

As a police officer, a team leader in charge of criminal investigation work in a place, he naturally understands that in the process of handling cases, the most taboo thing is arbitrariness.

"Squadron Mu, according to what you said, someone came in through the door, walked to the balcony, and then pushed people down?" Team Yuan frowned, "But this is just a footprint......"

Mu Yuan didn't wait for him to finish, and then said: "This is just a speculation of mine. The basis for supporting my speculation is not only the difference in the force of the footprints, but also a very important point. This row of footprints that come in through the doorway and then go out is covered by it when it overlaps with all the other footprints. This shows that this row of footprints is left at the end. And in this kind of footprint, there are also overlapping ones. If you look at this group, it's obvious that the footprints that went out covered the footprints that came in. This shows that ......"

"It means that this person will come in first and then go out!" said Team Yuan immediately.

Mu Yuan looked at the other party: Well, yes, I will answer it.

Li Jun on the side suddenly said: "Squadron Mu, you said that someone came in wearing the same shoes as the suspect, and then pushed the deceased downstairs. But it's slippers, who doesn't have anything to do with slippers walking around, and we don't get the corresponding shoe prints in the aisle outside. According to what you say, either the suspect is still hiding in this room, which of course is impossible, or he came with his shoes in advance. But in this case, how did the suspect know what shoes the deceased was wearing, and even knew the pattern of the soles so clearly? and even ...... In order to commit the crime, he also specially brought a pair of such slippers over, and then went in and out to change his shoes. What do you think...... Is this a big possibility? Is it too far-fetched to judge that the deceased fell from a building and killed him based on just such a row of footprints?"

Fan Yitong glared at the side and said, "Brother, in terms of handling cases, what our squadron leader said must be correct. This has been proven by countless previous cases. ”

Li Jun glanced at Fan Yitong, and inexplicably thought of a sentence in his mind: Licking dogs has no house.

Mu Yuan smiled slightly, and said calmly: "I say this, not to conclude that this is a homicide case based on this, but just so that this incident is not simply characterized as a stumbling and falling from a building." As for whether the final case is constituted, further investigation is needed. ”

Brigade Yuan clapped his hands and said, "I agree with what Squadron Mu said! Since we cannot now rule out the presence of other people at the scene when the deceased fell from the building, we cannot characterize this as a stumbling fall. In this way, the person who called up the monitoring should be coming back soon, and we will take a closer look at the monitoring ...... in a moment."

Mu Yuan didn't wait for him to finish, and said, "Team Yuan, there's no need to be so troublesome." ”

Brigade Yuan looked at him with a look of surprise, could there be any better way?

Mu Yuan pointed at Fan Yitong and said, "If someone really appeared at the scene at that time, Ermao would definitely be able to sniff it." And the target hasn't been away from this room for a long time now, and Ermao can completely catch up with his breath. As long as the person is found, the rest will be very simple. ”

Yuan Brigade turned his head and looked at Fan Yitong blankly, Ermao?

Finally, his eyes stayed on the husky in Fan Yitong's arms.

Well...... There's nothing wrong with this......

Ask for a commuter pass!

(End of chapter)