The pedestrian street is filled with tourists who stretch for nearly a kilometer, and it is a bustling avenue that pushes the crowds forward even if you don't go any further. The shopping malls on both sides of the street attract attention with sophisticated or modern or luxurious windows, and the assortment of snacks keeps pedestrians empty-handed, and not many people notice the makeshift team of police cars on the corner.

It is the hottest August in the city, and when you walk into this office building located at the intersection of pedestrian streets, the usual cold has turned into a little shade. The exterior of the office building is partially peeling off in paint, and the doors are opened in a very different way than modern office buildings, with mottled checkered floor tiles on the floor like a dense almanac recording visitors to the building built in the 70s.

The elevator was being repaired and stopped on the sixth floor, and the person in charge of the property rushed over to see that they were about to drill down the car to investigate the scene, and told him: "You must be careful, it is too dangerous to go down now." Or wait for the elevator to get ready and come back?. He didn't make sense, and the technician of the elevator company immediately came over to explain the seriousness of the problem. Listening to the worst case scenario in 10,000, everyone's faces were a little solemn.

However, the investigation time waits for no one, and every minute and second passes, the biological traces are disappearing, and the possible clues will be interrupted, which is irreversible to the follow-up work. Investigators are never able to choose the environment for investigation, so they can only race against time to adapt to different scenes as quickly as possible. Qiao Xiao just didn't speak, and walked towards the safe passage stairs, and everyone could only follow silently.

Coming to the basement level, crossing the threshold, they all came directly under the car. Qiao Rao just took the lead in putting on the head covers, foot covers, and gloves neatly, and got into it as soon as he raised his feet.

Qiao Zhen patted Chen Shijie behind Qiao Raogang: "Forensic Doctor Chen, you won't dare to go over, right?" ”

"Oh, just ahead?"

"Of course, go ahead, you should be where the corpse is, a little bit of a man, okay?"

"I didn't say anything, I was waiting for Team Joe's orders."

Qiao Xiao just got out of the space directly below the suspended car, "Here!" Today's task has just been heard by everyone, there is quite a danger, the principle of voluntariness, if you don't want to come, I understand, not reluctantly. I immediately called for support and a replacement. ”

Qiao Zhen was the first to follow in full armor, and Chen Shijie and Shi Yan also cautiously stepped in.

Although I watched countless bloody and bizarre photos of the scene in the police academy, the feeling of the scene was still quite visually impactful. The female corpse was lying on her back on the concrete floor of the basement, naked. She looked quite young, there was not even a trace of visible fine lines on her skin, her long black hair was scattered on the floor, as if it hadn't been washed for a long time, and a few ends of her hair were tangled in dust. There was no panic or sorrow on her face, and she looked as if she was asleep. The woman's left hand is open and flipped to the ground on its side, and the other hand is on the side of the body. Because it was at a seventy-five degree angle to the wall, one of her knees was slightly bent in the shape of a frog's leg, and the other foot was staring at the base of the wall, and the color of her toes changed.

Shi Yan looked at Chen Shijie, who was already busy, and looked at the naked "unconcerned" deceased on the ground, walked up to Qiao Xiaogang and asked in a low voice: "Team Qiao, you see that the deceased didn't have any clothes and any documents, not even shoes, do I need to go to other places to take a look and listen to your command." ”

"Team Joe, apart from a blow to the back of the head and multiple fractures, there is no need for other experiments such as poisoning." Forensic Doctor Chen reported.

Qiao Xiao was silent, nodded, turned his head to look at the elevator track, and asked, "Can the time of death when the subject confirms death from the time when the 110 command is issued now?" ”

"Dad, do you think this is the first scene?"

"Come here, I'll remind you again seriously, don't call Dad when you're working, call Team Qiao. Also, adults talk, children don't interject. ”

Qiao Zhen pouted nonchalantly: "Forensic Doctor Chen seems to be younger than me, it's just that he has been working longer than me." I just don't interject, just go around and look for suspicious objects and traces. ”

"Stay safe." A non-toned command floated from behind Team Joe.

There are not many old office building probes themselves, and the elevator entrance is still black, and there are very few materials that can be copied, cutting off an important clue for no reason.

"Your probes are either out of order or not backed up, how do you usually do this security work?" Qiao Zhen pulled out the USB flash drive a little annoyed, and without waiting for the property manager to make up any excuses, he asked him to follow, and hurriedly walked towards the elevator together.

"Have you ever seen the dead before?" Qiao Zhen took out a photo of the deceased's face and stopped for the manager to take a closer look.

The security manager shuddered with fright, and his face changed.

"What, you know her?"

"It's not that I know, it's that I've seen. I only saw her last week. ”

"When and where will I see her?"

"I was on duty at the time, and she got into an argument with one of our security guards and later called the police."

"Why the argument and what does she want to do?"

"You know, no matter how dilapidated we are, there is still a little company working in it, it is an office building, and the security guard always has to ask when he sees an unfamiliar face, except for the maintenance of food delivery and express delivery. Then she came in empty-handed, asked her where she was going and didn't answer, asked her what she was going to do, she also went on a rampage, and the security guard quarreled, the security guard grabbed her in a hurry, who knew that she pulled out a knife and stabbed the security guard's leg at once, and the security guard immediately called 110. ”

"Is this security guard here today?"

Later, he deducted the bonus because of leave, and he didn't seem to be happy, thinking that this should be considered a work injury. I can't help it, this week I approved him to take a vacation to recuperate at home. ”

The elevator that was being repaired stayed on the sixth floor, and Qiao Zhen groaned for a while, trotting all the way there, only to find that the passenger elevator door had been closed. On the outside of the elevator, I don't know whether the building property or the company where the floor is located has installed a retractable security door, and a lock is hung on the door.

"All the elevators here are like this?" Qiao Zhen asked.

"As long as there are more companies on the floor, they will install doors like this, and some company employees have reported that laptops, wallets, and mobile phones are gone in the office in a blink of an eye, because the personnel here are more complicated, and the mobility is relatively large, and the suspect has not been found, and some companies can't deal with this matter, so they simply thought of a way to do it once and for all, and later the companies on other floors also followed suit."

"And they have other elevators up the stairs?"

"Yes, because our building is old, the passenger elevator has not been renovated due to financial constraints, and the special elevator for internal personnel installed after that has an access control system requires a card to go up the floor."

"Does this reduce the theft rate?"

"There has been a lot of decline, although there are still thefts that happen every now and then, but the employees have nothing to say, who can tell the internal hand-in-hand things, at least it can't rely on our property and the company."

The company lights in the hallway are also dimmed, and the entire floor is filled with the atmosphere of economic depression, which is also incompatible with the prosperous area where it is located. At least for a general passerby, the entire elevator box cannot enter and exit freely on this floor. Qiao Zhen ran the floors up and down the sixth floor without stopping.

"The occupancy rate here is probably less than 50%, right?"

The property manager couldn't keep up with the pace and answered her question breathlessly: "Who says it's not, the theft has a big impact on our property rental, and our hardware is indeed not as good as other office buildings, it's just that the cost is still competitive, but some companies that care about face won't come to us." Some small companies that don't care about the location in the city center have also moved out step by step because employees complained about the high cost of lunch and transportation, and the total occupancy rate is now about less than 30%. ”

"So, you even hired an uncle who dozed off all day long for the gate security?"

"Hey, it turned out that the security guard was temporarily replaced by a leave of absence, and we also had difficulties in our work, and the operating costs were there. I'm not a good property manager. ”

When Qiao Zhen returned to the basement and reported his various discoveries, Old Qiao nodded and asked her, "Then what is your preliminary analysis?" ”

"Team Qiao, I'm not like your old mage, I can draw a lot of conclusions based on experience, and sometimes I can even rely on intuition to identify criminal suspects. I believe in science more, and without numbers and evidence, I can't do any preliminary analysis. ”

"And what do you mean?" Old Qiao was kind and seductive, and Qiao Zhen pretended not to see that he was already confident.

"I suggest, first, check whether the identity and contact information of the deceased are recorded in the police record last week. Second, check the information on the reports of missing persons from yesterday to the present. Third, it is necessary to check the movements and family status of the security guard who took annual leave. Finally, I need Shi Yan and Forensic Doctor Chen to confirm whether the deceased was sexually assaulted as soon as possible. ”

"This has just been confirmed, the deceased did have sex before his death, and I have taken a semen sample. As for whether it is sexual assault, we need to further check and confirm. Forensic Doctor Chen shook the reagent bottle in his hand.

"Qiao Zhen, if the work here is over, you might as well go into the elevator and see if there are any clues. For other work, I will arrange someone to visit and verify. Old Joe instructed.

"Yes, Team Joe, the order has finally been given. Just waiting for you to speak. Qiao Zhen asked Shi Yan to bring her camera, take a hand with her, and go to the elevator.

Team Qiao asked the staff to lead the way, and they had just walked a few steps with Qiao Zhen behind, and when they turned around, they saw the bureau leader walking in with their heads held high. He turned to meet him and gave a general introduction. The leader looked around, frowned, and nodded from time to time.

Qiao Zhen whispered to Shi Yan and them; "Don't be stunned, the leader just has someone to receive you, and we'll continue to work."

Qiao Zhen pulled her directly to the fire escape to the fourth floor: "I found a piece of clothing in the garbage heap in the gap of the private door, and a shoe was found in the corner of the private door on the seventh floor, and the other appeared on the fifth floor. We need to confirm whether it is the clothes of the deceased, and maybe we can restore the real situation at the first scene. ”

Shi Yan was just about to take off her hood, put it back on quietly, and walked to Qiao Zhen's side: "You're welcome, this is the job of our trace group, rebuilding and restoring the scene." ”