Criminal Investigation Notes

After supper, Lu Junchi helped Su recover the tableware and chopsticks. When he came out of the kitchen, Su Hui was already sitting at the desk, burying himself in various materials and books.

Lu Junchi remembered the vaccination Lu Haochu gave him: "Go to the headquarters at nine o'clock tomorrow morning at the latest, and have a meeting with the criminal police team. You will get up at eight o'clock?"

Su Hui nodded, looking serious and serious: "You call me back." Then he added, "You can take coercive measures."

"Then if you don't get up, I'll lift the quilt." He tried this trick on Lu Haochu, and it was very effective.

Su Hui lowered his head and hummed.

When Lu Junchi approached, he found that Su Hui was looking at the materials brought back from the General Administration in the afternoon: "Is there something wrong with this case?"

Su Hui was full. At this time, his body felt warm. He rubbed his forehead: "I think these two cases are different."

The files of the two cases were flattened on the table by him, and they were compared with each other. The first case was calm and the scene was cleaned up neatly.

Overall, in the first case, it can be clearly seen that the murderer is prepared, but the second case seems like a homework for a novice.

Su Hui added: "The two communities are also very different. Compared with the first community, the second community is much more upscale."

The higher the level of the community, the more complete the security, and the higher the risk factor when committing a crime.

The first case took place in an old community with the highest six-storey building, and the second community was an elevator room, where the crime took place on the twelfth floor.

After the first case, they found blurry images of the suspected murderer in nearby cameras.

In the second case, the elevator camera did not capture the murderer going up and down the stairs.

Could it be that the murderer climbed up and down the stairs without encountering community patrols and security guards at the gate, and even the cameras along the way did not capture them?

This obviously doesn't make sense.

Su Hui continued to point to a few pictures of the corpse and said, "There is also the corpse we have seen today. In the first case, although there was also a stick injury, it only appeared on the husband's body, indicating that it was the husband who entered the house and subdued quickly. In the second case, the wife was wounded to death by a stick, and only the mother-in-law suffered a stab wound, which did not conform to the murderer's killing pattern."

Lu Junchi frowned and looked at it for a while, and found the abnormality: "It can't be done by a different murderer."

Su Hui tapped the portrait of the prisoner on the side with his hand: "But there is one thing that cannot be explained. If they were made by different murderers, why the portraits of the prisoners are so consistent."

If it is a different murderer, the police have not disclosed any information about the first robbery case, and the witnesses in the second case should have never seen the murderer. Why can they accurately say what the murderer looked like?

Moreover, it was the witnesses in the second case who first pointed out that there were three murderers.

Lu Junchi couldn't explain this: "Then let's start the investigation from these suspicious points."

Su replied: "Tomorrow I want to go to the scene of the second case to have a look."

Lu Jun nodded slowly: "I'll get in touch. I'll go over with Captain Qi tomorrow to check it out."

Although he was mentally prepared, when Lu Junchi got up early the next morning, ran for a walk, took a shower, and finished eating breakfast, Su Hui's room was still quiet, and he had no intention of getting up.

Lu Junchi went to bed at twelve o'clock last night. When he slept, Su Hui hadn't slept yet, and he could hear the sound of his slippers walking. He didn't know what time he had stayed up.

At 8:05 in the morning, Lu Junchi knocked on the door and walked into Su Hui's bedroom. With the curtains drawn, Su Hui put on a blindfold and slept soundly on his side. He put his mobile phone aside, and the alarm clock on it was ringing, but no one heard it at all. It is estimated that the alarm clock rang and the phone was out of power and could not get out of bed.

Lu Junchi stood at the door and knocked: "Mr. Su, it's time to get up."

Su Hui gave a low hum.

Lu Junchi approached and helped him turn off the alarm clock: "Come on, Su Hui, we'll be late later."

Su Hui whispered, "One more... sleep for another ten minutes."

Lu Jun checked the time late: "Five minutes at most, you must be able to afford it in five minutes."

Su Hui hummed again.

After Lu Jun went out a bit late and finished changing his clothes, and then entered the room, Su Hui was still in the same posture he left just now.

Lu Junchi called him patiently for the third time, "Su Hui, it's time to get up, I can't afford to be late again."

Su Hui turned over this time, pressed his right ear against the pillow, and turned his deaf left ear toward Lu Junchi.

Lu Junchi stopped talking nonsense with him this time, walked over to the bed and pulled the curtains open with a clatter, then involuntarily raised Su Hui's blindfold with his fingers, and pulled the quilt down a bit.

Su Hui's sleeping position was exposed. He was lying on his side, wearing pajamas on the upper and lower body. The shirt had already been rolled up, revealing a fair and thin waist. One of his hands was on his chest, and his arms were curled up. Aristotle, who was soundly asleep.

After Lu Junchi did this, one person and one cat finally woke up.

Only then did Su Hui get up obediently, washing and changing clothes as quickly as possible.

Seeing that it was half past eight, Su Hui finally changed his clothes and walked out of the room. He was wearing a shirt today, the bottom edge of the shirt was tucked into his trousers, and the waist was so thin that it was a small bunch.

Su Hui was completely awake at this time, and said a little apologetically: "I'm sorry I got up late, I'm not hungry, I won't eat earlier, don't be late later."

Lu Junchi shoved a glass of hot milk to him and said, "After drinking the milk, I bought you steamed buns to eat on the way."

Su Hui raised his eyes to look at Lu Junchi while drinking.

When the two of them got on the elevator, Su Hui was still eating steamed buns.

This bun Lu Jun had eaten in the morning, and there was a paper pad underneath. He looked at it at this time and found that Su Hui had not found the pad at all. The worst thing was that there was a small piece of the pad missing.

Lu Jun was dripping with sweat, but Su Hui was eating right there.

"Wait, there's something on the bun." Lu Junchi hurriedly grabbed the bun from Su Hui's hand and helped him tore off the rest of the pads. He breathed a sigh of relief, "I took it off for you, Eat it."

Su Hui snorted, took it again, took a bite without hesitation, and said to Lu Junchi, "The tenacity of the steamed buns is gone..."

Lu Junchi: "..."

He made up his mind, next time, he must check the food before giving it to Su Hui.

After tossing around for a while, I finally arrived on time without any risk.

The other members of the serious crime team have already arrived, and the case files have finally arrived.

Everyone first listened to Captain Qi of the Criminal Police Team to introduce the situation of the case and the progress of the investigation.

After Lu Junchi made the work arrangements, he brought Su Hui and Wujian along with Captain Qi to the crime scene of the second case.

Captain Qi, whose real name is Qi Zhengyang, is an old captain of the Second Criminal Investigation Team of the General Bureau. After the case was brought up from the branch, he was the one who brought people to see it at first, so this time he was the one who accompanied him.

This is a duplex top floor. Downstairs are the living room, dining room, kitchen and bathroom. The two bedrooms and study are all upstairs. The area of ​​this duplex is not small, it is estimated to be nearly 200 square meters. In Huadu, where every inch of land is expensive, to have such a well-covered house, this family is considered a middle-class.

This case has just happened for two days. Other members of the family have temporarily stayed at the relative's house, and the crime scene has been well protected.

Su Hui put on gloves and foot covers. As soon as he entered the room, he smelled a strong **** smell, and he coughed a few times.

Lu Junchi also glanced at the environment of the crime scene, and then he looked at Su Hui. It was very strange that as long as he picked up those documents or came to the scene, the slackness of Su Hui disappeared, replaced by a kind of Full focus.

Su Hui first looked at the first floor as a whole, and lowered his head to observe the traces on the ground. Various marks were made on it by the previous book, and signs were placed everywhere. The number 1 position was where the body of his former wife Xie Peilan was located. Location, the second position is where my mother-in-law fell and was injured.

Su Hui first looked at the first position. According to the previous on-site photos and the traces of the dead body, he could see that Xie Peilan was lying flat beside the TV cabinet.

The autopsy report just received this morning also stated that the deceased died of multiple skull fractures, severe brain injuries, and bleeding due to multiple blows to the head.

Then Su Hui's eyes fell on the bloodstains on the wall. The bloodstains were obviously formed by splashes after his wife was seriously injured.

It was the largest bloodstain at the scene, and the large red was a blur in his eyes.

Su Hui took another step forward, and then he could see more clearly, and he could see the tiny blood spots around the blood stain.

The duplex building is exquisitely decorated, and all the walls are covered with a layer of wallpaper with dark flowers, and those blood stains are sprayed on the wallpaper.

With the development of criminal investigation technology, blood has long become one of the important physical evidences in criminal investigation.

Blood not only contains a lot of information, but also the blood spatter form is a direction worthy of research. Because the color, texture, fluidity, and permeability of blood are different from other liquids, the blood spatter shape is even more special, and there are even specialized blood spatter shape analysts abroad.

Compared to those intricate lies, perjury, and blood spatters are often one of the most difficult pieces of information to fake.

In the absence of dead bodies and other physical evidence, bloodstains can present many clues.

Looking at the dark red bloodstains on the walls, Su Hui frowned slightly. He had been to some crime scenes before, and he had seen many photos after the crime, but the bloodstains on the wall belonged to him. Seeing is not the same.

The bloodstain seemed to have life, as if it was smudged out by a brush, and all the coquettish flowers bloomed on the wallpaper.

These bloodstains seem to tell them something...

After seeing Su Hui entering the house, Lu Junchi had been observing the bloodstain. He leaned over and asked, "Is there a problem here?"

Su Hui hummed, and then said, "I need to see more clearly."

As he spoke, he traced the area of ​​blood stains on the wall with his gloved fingers, and when he reached the low place below, his waist injury had just healed, and it was inconvenient, so he simply knelt down.

Lu Junchi reminded him carefully: "The floor is dirty, why don't you pad it..."

Su Hui didn't mind at all: "Just go back and wash your pants."

Su Hui carefully looked at the blood on the wall and asked Qi Zhengyang, who was standing beside him, "Captain Qi, the confession you asked before was that mother-in-law would go downstairs to check when she heard the abnormal sound, right?"

Captain Qi sighed: "Husband, father-in-law's testimony is like this. I went to the hospital this morning and asked my mother-in-law who just woke up, and said the same thing."

Su replied: "Then these people are probably all lying."