Chapter 144 Footprints

In the office.

The computer was rumbling, and the desktop was in a mess.

Wang Zhong was actively looking for cases, but the actual efficiency was not high.

This was mainly because the cases were not classified by footprints.

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

However, footprints are used as clues for current cases, but they are a little insufficient for backlog cases.

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

At this stage, the police database only contains footprints found on the scene. Basically, it can only be used for one case at a time.

Jiang Yuan looked at Wang Zhong's operation and couldn't stand it for a while, saying: "How about this, put the picture of the footprint separately, I think it seems to be okay just now?"

"Do you mean to only look at the picture of the footprint? Look directly at the gallery?" Wang Zhong didn't quite understand.

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

"This... can we not look at the case, is it okay?"

"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 pictures, and information kept emerging in his mind.

Height!

Weight!

Age!

Foot shape characteristics!

Gait characteristics!

Wear marks!

Jiang Yuan wanted to find a special footprint.

It is still difficult to solve a backlog case with footprints, and Jiang Yuan does not pursue solving a case with a footprint, which is not realistic.

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

"I'll do it myself." Jiang Yuan saw that Wang Zhong had no other operations, so naturally he didn't need to keep pressing buttons there, which would affect his performance.

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

Wang Zhong was happy with this.

He just watched Jiang Yuan's actions from the side, thinking in his heart:

Is it really just the level of doing homework?

It is estimated that he also learned it on the spot, otherwise, it is impossible that he has never used it before.

So, the skills he learned on the spot should not be very good.

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

"Let's play this case." Jiang Yuan gave up his position and motioned Wang Zhong to operate. He was not very familiar with the software here.

Wang Zhong looked at the picture of the footprints, his eyes couldn't help but condensed, and he said in surprise: "Bloody footprints?"

Yes, the picture in front of him was a pair of bloody footprints.

As we all know, it is not easy to make a bloody footprint from the blood shed by minor injuries.

And serious injuries and murders, plus the elements of a backlog, are definitely not easy to solve.

Even if it was easy to solve the case back then, it is probably not easy to solve it now.

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

Yan Ge, who was in the office, heard the bloody footprints and got up to see.

Jiang Yuan sat down unceremoniously and looked at the case.

The case was not complicated. A middle-aged male owner of a family surnamed Yang in Shanghe Village on the outskirts of the city was found dead at home. The murder weapon was a sickle from his own home. There were bloodstains on the sickle, but no fingerprints.

In addition, no usable fingerprints and DNA were collected at the scene, but there were a large number of footprints.

In the direction of the investigation, it was initially suspected that it was a dispute between villagers, so everyone in the village was questioned and a record was made. The footprints of the whole village were collected and compared, but nothing was found.

Later, the direction of the investigation turned to burglary. It was speculated that after the thief was discovered, he escalated to murder in panic and fled.

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

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

Not surprisingly, there were also hundreds of words in the footprint analysis, which was obviously judged by experts.

"Chen Wenming, the trace examiner of Qinghe City Bureau, is also quite famous for his footprints. This footprint was taken for him." The case was less than 10 years ago, and Yan Ge remembered it clearly, and all the footprints were handled by him.

Jiang Yuan said "yes" and first glanced at the conclusion:

Height: 178-185 cm.

Age: between 18 and 23 years old

The direction of the starting and landing feet is consistent; the shape of the plantar indentation and the heel indentation on the sole of the foot is basically the same.

There is no judgment on weight, and the judgment on age is relatively long: in the whole footprint, the stride is large, the step is neat and powerful, the step angle is small, and the step width is narrow... The heavy pressure point of the indentation is on the inner side of the forefoot, and the indentation is forward... The estimated age is between 18 and 23 years old.

The 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 on the footprint.

However, it is appropriate to have inconsistencies. If they are completely consistent, then Jiang Yuan's judgment, in theory, will not help the case.

"See who the police officer in charge is. I'll call him for consultation." Jiang Yuan expressed his humility.

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 No. 1 Squadron. Captain Wu has a bad temper. Don't be too blunt."

"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 out 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 a backlog of cases here that 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 yelled, then changed his voice and said with a smile: "I'm arresting someone, you say."

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

Wu Junhao was obviously taken aback: "Why are you suddenly talking about this case? How are you related to it?"

"I saw the footprints of this case, 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 case.

The per capita height in Shannan Province is quite high, and men over 180 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 will be 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 working on this case, 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 facing a 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!"