ICS Homicide Tracking

The wound on the photo was located on the arm of the deceased, and the bruises of ordinary people are purple, but the bruises on this photo are red.

Shi Han took a look and explained: "Most of this wound is bruised, with slight contusions on the surface. The material contaminated by the wound was tested and confirmed to be the wall dust on the outer wall of the building. There are two types of contusions: horizontal and vertical. Vertically, it is caused by the body falling and rubbing against the wall. Arm bruises are subcutaneous blood vessel bleeding caused by external force, while tiger mouth bruises are formed under the pressure of gravity, because different muscles have different degrees of healing. Similarly, living people The degree of healing is not the same as that of the dead."

After death, the blood circulation stops, and the blood falls along the blood vessels and accumulates in the capillaries and small veins under the action of gravity, forming a phenomenon of empty high-level blood vessels and congested low-level blood vessels, making wound healing impossible.

Shi Han made a final deduction: "The wound on the deceased's body was bruised red, which was caused by a heavy blow not long before his death."

"That is to say, the deceased had been hanging on the outer wall for a while before he was alive? Then there might really be another person at the scene, and the deceased asked him for help? Who would that person be?" Li Qi asked several questions at once.

They surveyed the scene, and the only smooth object on the roof that echoed what Shi Han said should be the handrail of the roof railing, but if they really grabbed the handrail, then the position of these scratches should be further down, and there should be some scratches. Creases blocked along the wall.Therefore, the greatest possibility is that the deceased grabbed someone else's hand and dragged it down for a certain distance, so there were long and uniform longitudinal scratches on the deceased's arm.

Shi Han tapped the edge of the table with his fingers, and waited for Li Qi to finish speaking before he said, "The autopsy report on the corpse will be added later, and the suspect's portrait will be added when the chain of evidence is completed. But as for whether you have asked for help?" , who to ask for help, this is a matter for your criminal investigation."

Li Qi nodded, he knew about this, so he looked at the second photo that was missed yesterday, and saw that the scar was a bruise during his lifetime, but the shape did not seem to be a blow wound from an ordinary object.

This kind of scar is a rectangular scar, the long side is obvious, and the short side spreads out. For a while, he couldn't think of anything that could make such a scar.

"what about this?"

Shi Han explained: "There were many bruises like this on the deceased's body, and the degree of healing was different. They were injuries during his lifetime, but they were not fatal. So far, no tools have been found to cause injuries."

As he said that, Shi Han looked up at the wall clock on the wall, got up and packed up his things and prepared to leave: "The detention time is just over, I'll send the little guy back to school first, I'll contact you by phone if you need anything."

Shi Han walked to the door of the office, stopped suddenly, turned around and said, "By the way, I will go to University A tomorrow."

"Send him back to school tonight, and go to accompany him tomorrow, aren't you tired?" Li Qi had an expression of "I understand".

Shi Han froze and laughed, "Captain Li, please be simple-minded. I'm going to the scene tomorrow."

There were many scars on the surface of the corpse. If he did not cause it himself, then the deceased should have been abused during his lifetime. He had to find out the tools used to injure the wound and do a scar examination before he could issue a report.

Li Qiyi nodded, "Yes! Obtaining evidence!" He didn't believe it anymore, Shihan wouldn't go to Yanran, the result was the same, why bother to pursue the details so much.

"By the way, since you're going to the scene, it happens that the Physical Evidence Division can't afford manpower, so you can bring the physical evidence interns to the scene to help search for evidence tomorrow!" Li Qi said, clasping his hands together, praying for Shihan to be able to recover Mercy, show consideration for their sparsely populated ICS.

The Physical Evidence Section has always said: The longer the delay, the greater the chance of the evidence being contaminated.

But on the night of the crime, there were too many physical evidences brought back from the scene. The colleagues in the Physical Evidence Department had been up all day and night, and they really couldn’t get away. I went abroad for further study at the beginning of the year, so the most suitable person to go is the forensic medicine department.

Shi Han didn't have much opinion, he was going to the scene anyway, it was just a matter of bringing one more person, so he responded: "Got it, let him wait for me at the door of the dormitory tomorrow."

After speaking, he walked towards the door of the detention room, signed the consent form handed over by his colleague, and prepared to leave with Yan Ran.

The colleague saw that the section chief only wrote his name, but did not fill in the relationship, so he rushed to inquire.

Shi Han thought for a while and replied, "Family."

Uncle Yan and Aunt Yan probably didn't know that Yan Ran was imprisoned in ICS. After all, Yan Ran always called him brother when he was a child, so he could barely count as half of his family.

"Ah?" The colleague was dumbfounded, so the classmate Yan inside is really Section Chief Shi's younger brother?But they have different surnames!

Yan Ran also looked at Shi Han suspiciously, so Shi Han has cultivated to the point where he can tell lies without blushing?

Shi Han brought Yanran to the garage. Seeing that Yanran wanted to sit in the back row, he locked the rear door and opened the passenger seat, "Your school is going to be closed, hurry up."

Yan Ran's eyes twitched slightly, he didn't struggle anymore, and obediently sat in the passenger seat.It's not that he rejects Shihan, the main reason is that he is a little sleepy and wants to sleep, and the lights in the back row are dimmed.

But he didn't sleep well last night, and fell asleep after leaning against the passenger seat for a while. Shi Han glanced at Yan Ran who was sleeping soundly beside him, and silently pulled down the baffle to help him block part of the street light.

Yan Ran had class early the next morning, and stood sleepily downstairs in the dormitory. He was really sleepy last night, so he said hello to Shi Han vaguely and went back to the dormitory.

Thinking about it now, his guts are green with regret, he didn't even leave Shi Han's contact information.

Work hard, he fell on the starting line before he started.

Yan Ran was wearing a loose sweater, just like the pajamas that Li Qi said, but no matter how long the clothes were, they still couldn't cover his slender legs.

In order to cover up the color of his eyes, Yan Ran often droops his eyelids, and because he hasn't had a good rest in the past two days, he can hardly keep his eyes open.But when Shi Han passed by, Yan Ran recognized it at a glance, and hurried to catch up, "Why are you here?"

Shi Han looked down at the address, and seeing that it was Yan Ran who was asking the question, he handed him the breakfast in his hand and said, "Come here to investigate and collect evidence, and I'll bring you breakfast along the way."

When Yan Ran took the breakfast, his mind was still muddled from sleep, and he was in a daze, so he only replied, "Oh."

"Where is building No. 20?" Shi Han had come over a long time ago, looking for the dormitory where He Xia was, while waiting for Yan Ran to go downstairs.But Yan Ran had already gone downstairs to go to class, and he hadn't found out where He Xia's dormitory was.

After being questioned, Yan Ran finally came back to his senses. After all, he was short-handed, so he personally brought Shi Han downstairs to Building No. 20 before going to class.

He had just taken two steps when he suddenly remembered something, turned around quickly and wanted to go back to look for Shi Han, but happened to bump into Shi Han.

"Are you free at noon, let's have dinner together?" Shi Han stretched out his hand to protect Yan Ran, afraid that he would fall.

Yan Ran was still sleepy, and nodded as soon as he heard eating, "Okay!"

Shi Han smiled, and stroked the fluffy little curly hair on Yan Ran's head very smoothly, "Alright then, I'll come to you at noon."

It wasn't until Shi Han walked into the girls' dormitory that Yan Ran came back to his senses, "I obviously wanted to leave a call just now! Why am I so stunned? Go to bed early in the future!"

He looked up to the sky and sighed, he must rest well next time before talking to Shi Han, it's just that he didn't wake up, which made him miss a great opportunity.

While Yan Ran was still regretting, he suddenly heard the class bell coming from the teaching building, and ran to the classroom as he couldn't care about anything.

Li Qi had already greeted the school in advance, so Shi Han could enter the girls' dormitory just by registering.

When Shi Han arrived at the scene, there was a cramped young man standing at the door of He Xia's dormitory, who should be an intern of the forensic department.

When the intern saw Shi Han coming, he hurried forward to say hello: "Hello, Chief Shi! My name is Yuan Rong, and I'm an intern in the forensic department. Please give me your advice!"

As Yuan Rong said, she made a big bow to Shi Han.