civil forensic

Chapter 145 Footprints
in the office.

The computer is booming and the desktop is in a mess.

Wang Zhong actively looked for the case, but the actual efficiency was not high.

Mainly because cases are not classified by footprint.

As a kind of evidence, footprints are relatively easy to use.Imagine that in a case, there is a footprint that is consistent with the pattern and wear on the criminal suspect's foot, and it can prove that the criminal suspect has appeared at the crime scene.

However, footprints are used as clues, and the current case is okay, but the accumulated case is not enough.

Because unlike DNA and fingerprints that have corresponding databases, there is no database for footprints.

As far as the current stage is concerned, in the police database, there are only footprints detected on the spot.Basically, it can only be used for one case at a time.

Looking at Wang Zhong's operation, Jiang Yuan lost his temper for a while, and said, "How about releasing the picture of the footprints separately, I think it's okay just now?"

"Does it mean to only look at the pictures of the footprints? Do you just look at the gallery?" Wang Zhong didn't quite understand.

Jiang Yuan nodded: "Yes, just put pictures of footprints."

"This...doesn't look at the case, can it work?"

"I'll find a footprint I like first, and then look at the case." Jiang Yuan said.
"Okay." Wang Zhong didn't know what kind of footprints Jiang Yuan liked, so he found the footprint gallery and flipped through them one by one.

Jiang Yuan stood in front of him, looking at the footprints in the picture, information kept popping up in his mind.

height!

weight!

age!

Foot features!

Gait characteristics!
Scuff marks!

Jiang Yuan wanted to find a special footprint.

It is still difficult to use footprints to solve accumulated cases. Jiang Yuan does not pursue to solve a case by seeing a footprint, which is not realistic.

However, Jiang Yuan believes that with such a large library and so many on-site footprints, one or two strange ones can always be found.

"I'll do it myself." Jiang Yuan saw that Wang Zhong didn't have any other operations, so naturally he didn't need to press the buttons constantly, and it also affected his own performance.

Jiang Yuan took Wang Zhong's place and continued to scan the pictures slowly.

Wang Zhong was so happy.

He only watched Jiang Yuan's actions from the side, and thought to himself:
Is it really just the level of homework?

It is estimated that it is also learned now, otherwise, it is impossible to never use it before.

Therefore, the current technology should not be very good.

Just as Wang Zhong was thinking about getting out and leaving, Jiang Yuan pushed the chair and stood up with a squeak.

"Let's take a look at this case." Jiang Yuan gave up his position and signaled Wang Zhong to operate.He is not very familiar with the software here.

Wang Zhong glanced at the picture of the footprints, his eyes couldn't help concentrating, and he asked in surprise, "Blood footprints?"

Yes, the picture in front of you is exactly a pair of bloody footprints.

As we all know, it is not easy to collect blood footprints from minor injuries.

As for serious injury and homicide cases, plus an element of accumulated cases, it is definitely not easy to solve the case.

Even if it was easy to solve the case back then, it is estimated that it will not be easy to solve it now.

Wang Zhong sat back in his seat, opened the case, read a few sentences carefully, and quickly gave way to Jiang Yuan.

Yan Ge, who was also in the office, heard the bloody footprints, so he also got up and walked over to have a look.

Jiang Yuan sat down unceremoniously and looked at the case.

The case is not complicated. In Shanghe Village on the outskirts of the city, the man surnamed Yang was found dead at home when he was a man in his prime. The murder weapon was a sickle of his own.There was blood on the sickle, no fingerprints.

In addition, no usable fingerprints and DNA were collected at the scene, but there were numerous footprints.

The direction of the investigation was initially suspected to be a dispute among the villagers, so everyone was questioned in the village and a record was formed.They also collected and compared the footprints of the whole village, but found nothing.

In the later period, the direction of investigation turned to burglary. It was guessed that after the thief was discovered, he escalated to murder in panic and escaped.

The criminal police in charge then scanned all the nearby thieves, and focused on tracking down the thieves who were active in the early stage and disappeared later, but still failed to solve the case.

Jiang Yuan looked at all the bloody footprints, and then opened the analysis of the footprints.

Unsurprisingly, the footprint analysis inside also has hundreds of words, which is obviously researched and judged by experts.

"Chen Wenming, the trace inspector of our Qinghe City Bureau, is also quite famous for doing footprints. This footprint is for him." The case is less than 10 years old, and Yan Ge remembers it clearly, and the footprints are all there. He did it.

Jiang Yuan said "En", and first swept to the conclusion:

Height: 178-185 cm.

Age: between 18-23 years old

The direction of lifting and landing feet is the same; the shape of plantar indentation and heel indentation on the plantar surface is basically the same.

There is no judgment of weight, but the judgment of age is relatively long: in the entire footprint, the stride length is relatively large, the stride is neat and powerful, the step angle is small, and the stride width is narrow... The heavy pressure point of the indentation is on the inner side of the forefoot, and the indentation is on the front... …estimated age range is 18 to 23 years old.

Height is judged by the length from the leading edge of the toe indentation to the trailing edge of the heel indentation, in other words, the height is judged according to the length of the foot.

This is inconsistent with Jiang Yuan's judgment on footprints.

However, it is only appropriate if there is a discrepancy. If it is completely consistent, then Jiang Yuan's judgment, in theory, will not help the case.

"Let's see who the policeman in charge is. I'll call him and ask him." 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: "It's Captain Wu Junhao Wu of the No. [-] Squadron. Captain Wu has a bad temper. Don't be too straightforward."

"Okay." Jiang Yuan was also impressed by the big-armed and thick-waisted Squadron Captain Wu Junhao.

When the phone was dialed, Wu Junhao's voice came out of the microphone in a super loud voice: "Jiang Fayi, is there something good to do to take care of me, brother?"

Jiang Yuan frowned and looked at the screen, and simply turned it into a speakerphone, and then said: "Team Wu, I saw a backlog here, which was handled by you before, and I want to know the situation with you."

"Oh, you said...follow that bastard and go around in front!" Wu Junhao roared, then changed his voice, and said with a smile: "I'm arresting someone, you said."

Jiang Yuandao: "Do you still remember the murder of Yang Gan in Shanghe Village?"

Wu Junhao was obviously taken aback: "Why did you suddenly mention this case? What are you related to?"

"I saw the footprints of this case, and I think the murderer's height should be very special. My judgment, the murderer's height is likely to be 193 cm. A very conspicuous height." This is why Jiang Yuan chose this case.

The average height of Shannan Province is not low, and men over 180 can be seen everywhere on the street.But in any case, 193 centimeters is an outstanding height, which can greatly narrow the range of suspects.

On the phone, the sound of running and wheezing suddenly disappeared.

Wu Junhao asked: "193 centimeters is too high. Chen Wenming judged it to be 180, maybe 185. How sure are you..."

Jiang Yuandao: "The length and width of the sports shoes will be slightly larger than the leather shoes. Of course, this is a non-essential difference..."

"But from this point of view, I think the sneakers the murderer was wearing that day were on the small side..."

"In addition, the size of the murderer's own feet may be smaller than the normal ratio..."

Jiang Yuan stopped here and asked directly: "When you were working on this case, were there any suspects with a height of 193?"

Wu Junhao probably fell into memory.

a long time.

Accompanied by the noise on the phone, Wu Junhao said: "I have to go back and look at my notes."

Jiang Yuan reminded: "If you are 193 centimeters, you should have an impression when you see it."

"Well, I'll look at the notebook." When faced with a specific case, Wu Junhao suddenly became serious.

Jiang Yuan had no choice but to agree, and then he remembered that in movies and TV shows, those who went to get important evidence were always killed in time... and hurriedly said: "You pay attention to safety."

"Okay." Wu Junhao answered loudly, took away the phone, and shouted: "Catch that little bastard, don't eat if you can't catch him!"

"This kid runs faster than a rabbit."

"Then you guys will teach me how to behave like a dog and block him!"

(End of this chapter)