Chapter 581

"It's not easy to not leave footprints at the crime scene."

Jiang Yuan flipped through the photos, speaking as if chatting.

The police in charge nodded: "That's what I said, so we guessed, did the murderer use something to wrap his feet?"

He dragged his voice, looking at Jiang Yuan, as if he wanted to get an answer.

Jiang Yuan looked at the photos and replied: "Doesn't look like it, there are no abnormal footprints. If you wrap your shoes with plastic bags or newspapers, there will always be traces when you land."

"Oh... is that so. Then Wang Zhong's judgment is also quite good." The police in charge smiled and decided to believe in Wang Zhong.

Liu Liu Wenkai also recalled this case and said: "We investigated at that time, this family except for the traces of intrusion at the main door, no other entry and exit points of the crime scene were found. In the room, except for the messy clothes, the lost items were mainly cash and jewelry. Some valuable electrical appliances, including computers and alcohol, were not lost, so initially there was suspicion of inside theft."

"Indeed, the reporter is a teenager?" Jiang Yuan agreed. Adolescence is the age to challenge the world and authority, and the law itself is part of the world and authority.

Liu Liu Wenkai nodded and said: "If it was done by this son of the Chen family, it should be possible to find the whereabouts of the money. 200,000 yuan in cash, and so much gold and silver jewelry for selling stolen goods... As a result, no clues were found."

Jiang Yuan nodded slowly.

Although in ordinary cases, the police's means are relatively limited, it depends on who you compare with.

It is very difficult for ordinary students to hide this money alone, as for selling stolen goods, the difficulty is even greater. It is hard to say that there is no wind at all.

"So, every case is made by the perpetrator with all his strength." Jiang Yuan felt that this case was a bit interesting, and couldn't help but sigh.

Liu Liu Wenkai nodded with a smile: "This is like a woman. Every woman has her delicate and cute side. Ordinary girls also have their unique beauty. The girls in every field are different, regardless of low-price fields and high-price fields."

Jiang Yuan looked up at Liu Liu Wenkai: "Your translation is a bit of a distortion of my words... Look at the case, check the situation of this reporter again. It's been half a year, see if there are any changes."

If it is really inside theft, in the past six months, the boy's spending and usage should have improved. Even if it can't be reflected in daily life, checking his WeChat, shopping records, ticket purchase records, and hotel opening records, etc., can always reflect it.

If there is still none, inside theft doesn't need to be considered too much.

Without Liu Liu Wenkai's instructions, the police in charge agreed and went to check.

Jiang Yuan put this case aside and looked at other cases.

Extraordinary conclusions need extraordinary evidence.

Inside theft is the most routine judgment. Even if the previous police checked along this line, when it comes to Jiang Yuan, it still needs to be checked again. Because excluding this conclusion means entering a non-routine judgment.

This is also why large hospitals prefer patients to redo examinations. Because when patients come to large hospitals, they have often excluded routine illnesses. To reach a non-routine conclusion, naturally, more evidence support is needed.

The police behind brought other case files.

Jiang Yuan felt that reasoning and the like were a bit mind-consuming, so he picked cases like fingerprints and did them first.

This kind of case is comfortable because other conditions have been done by others, and you can purely do technology.

The trace inspection in Ningtai County is still Yan Ge and Wang Zhong, and the level is still the same. Facing various small cases, it is not necessarily better than the middle fingerprints...

Jiang Yuan picked those fingerprints with a difficulty level of LV1.5 and above.

For fingerprints with a difficulty level lower than this, Yan Ge and Wang Zhong should have a relatively high probability of doing it, and Jiang Yuan doesn't do much research.

Two cases, involving more than a dozen fingerprints, assuming the difficulty meets Wang Zhong's ability, he also needs one or two hours to do it.

As for Jiang Yuan, plus the ten minutes of opening the computer and software, it took a total of a quarter of an hour to complete the comparison.

"Bring it back and interrogate." Jiang Yuan matched one suspect to one case, and felt it was about the same.

For this kind of small case, no matter whether the person brought back is the main owner or an outsider, it will be clear after interrogation. There is no need to make it particularly complicated.

Liu Liu Wenkai agreed and happily arranged for people to execute it.

Jiang Yuan continued to do a footprint case, still a similar process.

The Second Squadron was in high spirits and began to feel the goodness of the limited edition.

Jiang Yuan smiled, and he was actually quite happy in his heart.

Compared with running around outside early and late, smoking and squatting for the whole night, or rushing to catch people, sitting in front of the computer to catch people is also quite good.

Moreover, the cases of the Second Squadron are major cases relative to the county bureau. For example, ordinary burglary and the like are sentenced to three years. If it is a repeat offender, or a repeat offender, adding a heavy item, it is very normal to add two years.

Three or five years, it doesn't sound like much, but it is actually very heavy in criminal law, and the crackdown on ordinary criminals is relatively high.

Jiang Yuan did five cases in one breath, looked at the time to get off work, stood up and stretched, smiled and said: "Let's stop here today, I'll go play with Dazhuang for a while."

"Okay, okay." Liu Liu Wenkai agreed very quickly, and personally went out to send Jiang Yuan to the police dog squadron downstairs.

In the playground of the police dog squadron, Dazhuang is exercising.

Suddenly, smelling Jiang Yuan's scent, Dazhuang, who was doing obstacle running, turned in the air and looked at the direction Jiang Yuan came from.

Jiang Yuan waved from afar, smiling.

Li Li also saw him, wiped her sweat, greeted him, and smiled: "Do you want to leave some playing time for you two brothers."

"Thank you, sister." Jiang Yuan took the traction rope.

Dazhuang "Wang Wang" replied, as if he had thanked him.

Li Li glared at Dazhuang, with an expression similar to Dazhuang's.

Jiang Yuan led Dazhuang, and one person and one dog ran side by side for a few laps.

After warming up slightly, Jiang Yuan took Dazhuang for a walk. Police dogs only eat one meal a day, so today's quota has already been used.

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Dazhuang himself knows, but he is still very happy that Jiang Yuan plays with him.

LV5 or LV6 dog food, even if you can't eat it, it's no big deal... Slurp...

When Jiang Yuan left at the end, Dazhuang looked at his back, and was drooling.

Li Li was helpless for a while, first helped Dazhuang wipe his mouth, and said: "You are really useless, isn't it just dog food... Slurp..."

The next day.

The police in charge of "Jinding Shuxiang Mingyuan" came back to report: "No evidence of the reporter's inside theft was found."

This means that the simplest way to start the case was overturned.

"In this case... is there no problem with the husband and wife of this family?" Jiang Yuan has read the case file, but still needs to confirm it.

The police in charge nodded and said: "I also investigated the situation of the couple, so it took until now. Basically, because this family is a demolition household, they are not short of money. Their family wealth far exceeds this number, and there is no strange income recently. Eh... the two cannot get any benefits from this theft, it looks like ordinary people..."

"There are no footprints of other people in the room..." What Jiang Yuan first thought of in his mind was a gentleman on the beam. If it were a mansion in ancient times, the criminal could go high and low, not falling to the ground, avoiding being discovered.

Jinding Shuxiang Mingyuan obviously does not have such conditions.

Jiang Yuan actually had some ideas in his heart. After confirming to this point, he looked at the photos of this case again, took out a few of them, and said: "Looking at it this way, the criminal should have worn this family's shoes."

A photo he took out was exactly the shoe cabinet of this family.

Jiang Yuan pointed to the slippers among them and said: "In terms of this family's living habits, slippers should be worn randomly, and there is no fixed person wearing them. So the footprints in his home are all his own family's shoe prints, but if you analyze carefully, the same footprint has multiple forms..."

Jiang Yuan said here, found a pair of blue shoes among them, and said: "Other shoes are worn by this family of three, three kinds of footprints, this pair of blue men's slippers has four kinds."

"What about guests?" The police in charge immediately thought of this doubt.

"Maybe. The possibility is not high. There are many relatively fresh footprints of this blue slipper at the scene." Jiang Yuan shrugged and said: "Now it's stuck here, let's see if we can dig something out of this pair of shoes first."

The clarity of the footprints found indoors is not very good in itself. It all depends on the fact that this family's room is large enough, and the boy is lazy enough at home, not sweeping or mopping the floor.

But in any case, just giving such footprints, wanting to solve the case still has a certain difficulty. The pair of blue slippers must be found back, and this clue can continue to be done.

"I'll go find this slipper." The police in charge didn't say much, and took people to go.

Jiang Yuan exhorted: "It is to collect DNA when it is brought back. You should pay attention that the evidence should not be contaminated. Don't call in advance, take the DNA of the couple back at the scene."

"Okay." The police in charge agreed.

Liu Liu Wenkai said with some concern: "It's been half a year, can you still take the criminal's DNA?"

"Let's see. If he didn't wear socks at the time, and the shoes weren't washed, there is a relatively high hope of taking it. Wearing socks... if you sweat, you should also be able to leave something..." Jiang Yuan analyzed very carefully.

Liu Liu Wenkai curled his lips: "Don't wash the slippers at home for half a year? This family's habits are dirty enough."

"How often do you wash your slippers at home." Jiang Yuan was suddenly a little curious.

"Slippers... I don't seem to have washed them specifically before." Liu Liu Wenkai hesitated, and then entered the long thinking time.