met free Chapter 930 A murder occurs at the briefing.
Chapter 930 A murder occurs at the briefing.
After the previous case concluded, the conference room of the Dongchuan City Criminal Investigation Detachment was filled with smoke. Qin Chuan was reviewing the case closure report, while photos of key evidence were displayed on the projector. Detachment Captain Li Ming reported on the recent security situation while occasionally glancing at his superior, known for his ruthless methods.
Suddenly, the shrill ring of the telephone shattered the rhythm of the meeting. Li Ming glanced at his phone, his expression instantly turning serious: "Director Qin, a murder has occurred in Beizhou Residential Area, Dongchuan District, Dongchuan City!" Qin Chuan slammed his folder shut, his eyes sharp as an eagle: "Meeting adjourned! Li Ming, you come with me to lead the team to the scene, everyone else stand by!" As soon as he finished speaking, he strode towards the door, his black trench coat fluttering behind him.
The sirens ripped through the city air as a convoy of five police cars sped toward the crime scene. Qin Chuan sat in the command vehicle, his hands clasped on his knees, silent. A tense atmosphere hung in the air. The streetscape outside the window rushed past, sunlight casting dappled shadows on his face.
Beizhou Residential Area is an old community built over twenty years ago, its walls covered in ivy and crumbling. Inside the police cordon, residents gathered downstairs, discussing the situation with unease. As soon as Qin Chuan got out of the car, a strong stench of blood assaulted his nostrils. He put on latex gloves and a mask, and together with Li Ming, quickly crossed the police cordon and headed straight for the building where the incident had occurred.
The crime scene was in room 302. The security door was ajar, and detectives were collecting fingerprints at the entrance. "Chief Qin has preserved the scene fairly well. The deceased is a woman, estimated to be between 25 and 30 years old. The preliminary assessment is that she died two to three hours ago," Xiao Zhang reported, his voice trembling slightly.
Qin Chuan pushed open the door, and the scene before him was horrifying. On the living room floor, a woman lay naked in a pool of blood, a deep wound on her neck exposing the bone. Blood soaked through the carpet beneath her, seeping out through the cracks in the floorboards. The woman's eyes were wide open, her face frozen in terror. Torn clothes and personal belongings were scattered around her, clearly indicating that she had endured a violent struggle.
“The carotid artery was completely severed, which is the fatal wound.” Forensic doctor Zhang Lin squatted beside the body and carefully examined the wound with tweezers. “The murder weapon should be a sharp knife. It was a fatal blow, and the method was quite ruthless.” He pointed to the woman’s right fingernail: “Skin tissue was extracted from between her fingers. It should have been left during the struggle with the murderer. It has been sent for DNA testing.”
Qin Chuan bent down to examine the ground. Bloodstains stretched from the living room to the bedroom, forming irregular drag marks. "First, identify the deceased. Check the community's surveillance footage and see who has entered or left in the last three days." His gaze swept over the wedding photo on the wall. The smiling woman in the photo contrasted sharply with the gruesome scene on the ground. "Also, focus on questioning the neighbors to see if they heard any unusual noises or saw any suspicious persons."
Li Ming nodded and immediately arranged for officers to begin their work.
The first step is on-site investigation.
Qin Chuan was very familiar with on-site observation, and the system also had related skills. So after arranging the relevant deployment work, Qin Chuan did not leave directly, but participated in the on-site investigation. He saw that the director was working on the front line, and everyone else was putting in their best effort.
Of course, in reality, no police chief would actually go as far as Qin Chuan to the front line and even participate in some specific work on the ground. This is mainly because Qin Chuan is relatively young, and also because he truly has the ability to do this kind of work.
It's not that all bureau chiefs are very familiar with the detailed operating procedures for on-site investigations. This requires highly specialized basic knowledge and technical skills. Some equipment has only been developed in recent years, and some bureau chiefs have never even seen it, let alone know how to use it. Therefore, there are very few bureau chiefs like Qin Chuan who can go deep into the front-line work, even direct others, and still follow the procedures and regulations to carry out on-site investigations.
Of course, since becoming the director of the Public Security Bureau, Qin Chuan doesn't go to the front line to directly participate in case handling as often as he does now, but he will still go to the scene whenever he has the opportunity.
Qin Chuan crouched down and carefully picked up half a bloodstained fingerprint from the edge of the bed sheet with tweezers, examining it closely under the cold white light of the crime scene investigation lamp. Technician Xiao Wang immediately brought over with a scale ruler, and with a "click," the high-definition camera completely recorded this fingerprint, which could become crucial evidence. "Use the 502 glue fumigation method to treat the entire house," Qin Chuan ordered without looking up, "focusing on the doors, windows, and areas where the murder weapon might have come into contact with the fingerprints."
The investigation team sprang into action. Two officers donned goggles and, armed with a 502 glue fuming device, sealed off the entire room. As the heating device activated, the colorless, transparent 502 glue evaporated, reacting chemically with residual amino acids and glucose from the fingerprints, gradually revealing white fingerprint patterns on the walls and furniture. Technician Li, holding a DSLR camera, employed a small aperture and long exposure technique to ensure every fingerprint detail was clearly captured.
"Director Qin, fresh scratches found on the master bedroom windowsill!" Technician Lao Zhou's voice came from the bedroom. Qin Chuan strode over and saw a scratch about 30 centimeters long on the outside of the windowsill, with several dark blue fibers hanging from the edge. "Take fiber samples and compare them with the city's textile factory material database." Qin Chuan examined the depth of the scratch with a magnifying glass. "The marks are distributed diagonally; the murderer most likely entered through this window." He reached out to measure the width of the windowsill and turned to his assistant, saying, "Record the data and analyze the murderer's build based on the shoe prints."
In the living room, footprint expert Lao Zhao was kneeling on the floor, using an electrostatic adsorption membrane to extract dust footprints. "There are two sets of shoe prints here," he explained, pointing to the floor. "One set is a size 42 athletic shoe print, matching the style found in the deceased's shoe cabinet; the other set is a size 44 leather shoe print, with a diamond-shaped grid pattern and obvious pressure distribution on the forefoot, indicating that this person had a habit of leaning forward when walking." He carefully peeled off the adsorption membrane and placed it in a transparent evidence bag: "These shoe print characteristics most likely indicate a certain brand of business leather shoes, which are less common in the market and relatively easy to investigate."
On the forensic team's side, Lao Zhou was conducting a post-mortem examination. Donning goggles, he shone a multi-band light source onto the body: "The neck wound is V-shaped, with clean edges and one blunt and one sharp angle, consistent with a right-to-left oblique cut by a single-edged sharp instrument." He measured the wound width with calipers: "The wound is approximately 8 centimeters long and 4.5 centimeters deep, directly severing the carotid artery, leading to death from acute hemorrhagic shock." Simultaneously, his assistant, Xiao Wang, operated a 3D scanner to create a three-dimensional model of the body's injuries.