Criminal Investigation Notes

After supper, Lu Junchi helped Su take back the bowls and chopsticks. When he finished packing the kitchen and came out, Su Hui was already sitting at the desk, burying himself in various materials and books.

Lu Junchi remembered the vaccination that Lu Haochu had given him: "Tomorrow morning, I will be at the headquarters at [-] o'clock at the latest, and I have a meeting with the criminal police team. You can wake up at [-] o'clock?"

Su nodded back, with a serious and serious expression: "You call me later." Then he added, "Coercive measures can be taken."

"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.

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

Su Hui was full, and felt warm in his body at this moment, he rubbed his forehead: "I think these two cases are different."

He laid out the files of the two cases on the table and compared them with each other. The first case was calm and the scene was neatly cleaned up, but the second case was a mess, with blood stains everywhere.

Generally speaking, in the first case, it was obvious that the murderer came prepared, but in the second case, it seemed like a novice's homework.

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

The more upscale the community, the more complete the security, and the higher the risk factor when committing crimes.

The first case happened in an old residential area, where the highest building was six floors. The second residential area was an elevator room, and the crime occurred on the twelfth floor.

After the first case, they found a blurred image of the suspected murderer from 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, didn't meet the community patrol and the security guards at the gate, and even the cameras along the way didn't capture them?

This obviously doesn't make sense.

Su Hui continued to point to some photos of the corpses and said, "There are also corpses we saw today. In the first case, although there were club wounds, they only appeared on the husband, which means that it was the husband who they entered the house to subdue quickly. In the second case, the wife was wounded to death with a stick, and only the mother-in-law had a knife wound, which does not conform to the murderer's killing pattern."

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

Su Hui tapped the portrait of the prisoner on the side with his hand: "But there is one thing that I can't explain. If it was done by different murderers, why the portraits of the prisoner are so consistent."

If it was a different murderer, the police have not disclosed any information about the first robbery, and the witnesses of the second case should have never seen the murderer. Why can they accurately tell the appearance of the murderer?

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

Lu Junchi couldn't explain these either: "Then let's start investigating from these suspicious points."

Su replied: "Tomorrow, I want to go to the scene of the second case."

Lu Junchi nodded: "I'll contact you, and I'll go over there with Captain Qi tomorrow for a re-examination."

Although he was mentally prepared, when Lu Junchi got up early the next morning, after running, taking a shower, and eating breakfast, Su Hui's room was still quiet, and he had no intention of getting up at all.

Lu Junchi went to bed at twelve o'clock last night. When he was sleeping, Su Hui was still up. He could hear the sound of slippers walking. He didn't know what time he was up.

At [-]:[-] in the morning, Lu Junchi knocked on the door and walked into Su Hui's bedroom.With the curtains drawn, Su Hui wore a blindfold and slept soundly on his side.His mobile phone was placed aside, and the alarm clock on it was ringing, but no one heard it at all. From this posture, it is estimated that the alarm clock rings until the phone runs out of battery and cannot get up.

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 stop the alarm clock: "Hurry up, Su Hui, we will be late later."

Su Hui said in a low voice, "Just... another 10 minutes of sleep."

Lu Junchi looked at the time: "Maximum 5 minutes, after 5 minutes you must afford it."

Su Hui hummed again.

When Lu Junchi went out for a while to change his clothes, and then entered the room, Su Hui was still in the posture he left just now.

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

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

Lu Junchi stopped talking nonsense with him this time, went to the bed and opened the curtains with a clang, then involuntarily picked up Su Hui's blindfold with his fingers, and pulled down the quilt for a while.

Su Hui's sleeping posture was fully exposed. He was lying on his side, wearing pajamas with his upper and lower body, and his top was rolled up long ago, revealing a white and thin waist. He put one hand on his chest, curled up in his arms Aristotle sleeping soundly.

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 08:30, Su Hui finally changed his clothes and came out of the room. He was wearing a shirt today, the lower edge of the clothes was tucked into his trousers, and his waist was so thin that it was so thin.

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

But Lu Junchi stuffed him with a cup of hot milk and said, "After drinking the milk, I bought you steamed stuffed buns for you to eat on the way."

Su Hui raised his eyes and looked at Lu Junchi while drinking.

When the two got on the elevator, Su Hui was still nibbling on the buns.

Lu Junchi had eaten this bun in the morning, and there was a paper pad under it. When he looked at it at this moment, he found that Su Hui hadn't found the paper pad at all, and the worst thing was, a small piece of the paper pad was missing.

Lu Junchi was dripping with sweat, but Su Hui was enjoying his meal there.

"Wait, there's something on the bun." Lu Junchi snatched the bun from Su Hui's hand in a hurry, and tore off the rest of the pads for him. He breathed a sigh of relief, "I'll take it off for you, Let's eat."

Su Hui groaned, took it again, took a bite nonchalantly, and said to Lu Junchi, "The toughness of the bun skin is gone..."

Lu Junchi: "..."

He made up his mind, next time, he must inspect the food before returning it to Su.

After tossing around, I finally arrived at the post on time without any risk.

The other members of the serious crime team had already arrived, and the case files were finally in place.

Everyone first listened to Captain Qi of the criminal police team introduce the situation of the case and the progress of the investigation.

Lu Junchi took Su Hui and Wu Jian with him after finishing his work arrangements, and followed Captain Qi to the 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 Administration. He is in his 40s this year, and his style is a bit conservative.After the case was brought up from the sub-bureau, he was the one who brought people to see it at first, so this time he was the one to accompany it.

This is a duplex on the top floor. The downstairs is the living room, dining room, kitchen and bathroom. The two bedrooms and the study are upstairs. The area of ​​this duplex is not small, it is estimated to be nearly [-] square meters.In Huadu, where land is at a premium, the family can be considered middle class if they can have such a well-decorated house.

Just two days after the incident happened, other members of the family temporarily stayed at relatives' homes, and the crime scene was still well protected.

Su Hui put on gloves and anklets. As soon as he entered the room, he smelled a strong smell of blood, and he coughed a few times due to choking.

Lu Junchi also scanned the scene of the crime, and then he looked at Su Hui. It was very strange that as long as he picked up the materials or came to the scene, the laziness on Su Hui disappeared, replaced by a kind of Full attention.

Su Hui first looked at the first floor as a whole, and lowered his head to observe the traces on the ground. It was marked by various marks from the previous property appraisal, and signs were placed everywhere. Among them, the No. [-] seat is where the body of his former wife Xie Peilan was. The second position is the place where the mother-in-law was injured and fell.

Su Hui first looked at seat number one. According to the previous photos of the scene and the traces of the dead body, it can be seen that Xie Peilan was lying flat next to the TV cabinet.

The autopsy report just received this morning also stated that the deceased died of skull fracture, severe brain injury, and hemorrhage caused by multiple severe blows to the head.

Then Su Hui's gaze fell on the bloodstains on the wall. Those bloodstains were obviously formed by his wife's serious injuries.

It was the largest bloodstain on the scene, and the big red was a blur in his eyes.

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

The duplex building is exquisitely decorated, and all the walls are covered with a layer of wallpaper with dark patterns, and those bloodstains were sprayed onto the wallpaper.

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

Not only does blood contain a lot of information, but the shape of blood spatter is worth studying.Because the color, texture, fluidity, and permeability of blood are different from other liquids, the form of blood spatter is even more special. There are even specialized analysts of blood spatter form abroad.

Compared with those intricate lies and perjury, the blood spatter form is often one of the most difficult to falsify information.

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

Looking at the dark red blood stains on the wall, Su Hui frowned slightly. He had been to some crime scenes before, and he had seen many photos after the crime, but the blood stain on this wall was from his past. What you see is not the same.

The blood stain seemed to be alive, as if it had been smudged by a brush, blooming bewitching flowers on the wallpaper.

These bloodstains seem to tell them something...

Lu Junchi had been observing the bloodstain since Su Hui entered the room, and he leaned over and asked, "Is there a problem here?"

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

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

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

Su Hui didn't mind at all: "Just wash your pants later."

Su Hui carefully looked at the blood on the wall, turned his head and asked Qi Zhengyang who was standing aside: "Captain Qi, the confession you asked earlier was that the mother-in-law went downstairs to check when she heard an 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 I said the same thing."

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