Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

There was a small amount of dark red stain at the corner of the deceased's mouth, suspected to be blood. A small amount of the stain was carefully extracted with a cotton swab, placed in a specimen preservation container, and marked. It will be tested later to confirm whether it is the deceased's blood and whether there are other components. Inside the deceased's mouth, the mucous membrane was undamaged, there were no traces of bleeding, and no foreign objects were left. The tonsils were not swollen or inflamed, and there were no obvious abnormalities in the throat.

Xiaolin quickly picked up a pen and meticulously recorded every detail of the head examination in the anatomy logbook, ensuring nothing was missed. "Teacher Zhang, the head examination results have been recorded," Xiaolin said after finishing. "The hair fibers and the dark red stains at the corners of the mouth have been marked and will be extracted for further testing."

"Xiao Lin, add the record," Zhang Kai said. "There are small scratches around the bruise on the left cheek of the deceased, 0.3-0.5 cm long, very shallow, and irregular in shape, suspected to be caused by fingernail scratches; skin tissue and skin flakes around the scratches have been extracted, placed in a specimen container, labeled, and will be tested later to check for the presence of the murderer's DNA."

“Record the results of the back examination,” Zhang Kai said. “The deceased’s back was covered with dust and dirt, and the skin was bluish-purple. The lividity was located on the back and buttocks, and was dark purplish-red. It did not fade when pressed. There were no obvious wounds, bruises, scratches, or external injuries on the back. There were no obvious nodules in the muscles. A small amount of dirt and weed debris were marked on the lower back. Subsequent extraction and testing showed no foreign matter such as fibers or hair remaining.”

"Abdominal examination results, record," Zhang Kai said, "The deceased's abdomen was covered with dust and dirt, and the skin was bluish-purple. There were no obvious wounds, bruises, or scratches except for a small scratch on the left side. There was no external injury; the abdomen was not swollen or sunken, and there were no signs of ascites or gas accumulation. There was a small scratch on the left side of the abdomen, 0.5 cm long, very shallow, and irregular in shape, which was suspected to be caused by weeds or gravel. There were no foreign objects such as fibers or hair remaining on the abdominal skin."

"The results of the upper limb examination are recorded," Zhang Kai said while examining the body. "The deceased's arms were bluish-purple, covered with dust and dirt, and had several small scratches, 1-2 cm long, shallow and irregular in shape, suspected to be caused by weeds and gravel. There were no fractures or dislocations in the arms, no bone crepitus, and no abnormalities in the joints. The hands were clenched into fists, and dirt, weed fragments, and fibers were extracted from under the fingernails, labeled in separate containers, and will be tested later. There were no breaks or bleeding in the fingers, and the fingernails were not missing or broken, with no abnormal patterns on the surface. There were several small bruises, 1-2 cm long, irregular in shape, and bluish-purple, on the inside of the arms, suspected to be caused by being beaten. There were no hardening or atrophy in the arm muscles, and no foreign matter such as fibers or hair remained on the skin."

"The results of the lower limb examination are recorded," Zhang Kai said. "The deceased's legs had bluish-purple skin, covered with dust and dirt, and multiple small scratches, 1-2 cm long, shallow, and irregular in shape, suspected to be caused by weeds or gravel. There were no fractures or dislocations in the legs, no bone crepitus, and no joint abnormalities. The feet were bare, wearing black cotton socks with toe damage. The feet were covered with small scratches and bruises. The scratches were irregular and shallow, and the bruises were 1-2 cm long, irregular, and bluish-purple. The scratches were suspected to be caused by weeds or gravel, and the bruises were suspected to be caused by being beaten. There were no breaks or bleeding on the toes, and the toenails were not missing or broken. A small amount of dirt and weed debris from the toenail crevices has been extracted, marked, and will be examined later. There were several small bruises, 1-2 cm long, irregular in shape, and bluish-purple on the inner thighs, suspected to be caused by being beaten. There were no nodules or atrophy in the leg muscles, and no foreign matter such as fibers or hair remained on the skin."

Hearing Zhang Kai's praise, Xiao Lin smiled and said, "Thank you, Teacher Zhang. I will continue to work hard. In the subsequent dissection work, I will be more meticulous and serious, keep good records, and live up to your trust."

“Next, we will begin the internal autopsy,” Zhang Kai continued, his tone becoming more serious. “The internal autopsy is the core of this autopsy. Through the internal autopsy, we will examine the deceased’s internal organs to confirm the specific cause of death and the exact time of death. We will then cross-reference the results of the external examination with the preliminary findings of the on-site investigators. At the same time, we will check for any residual toxins or other hidden injuries in the deceased’s body, extract the deceased’s DNA information, enter it into the national DNA database, compare it to identify the deceased, and search for clues left by the murderer.”

"During the dissection, we must be extremely careful and meticulous, and move gently to avoid causing secondary damage to the internal organs, which would affect the accuracy of the dissection results," Zhang Kai continued to instruct. "Each internal organ must be carefully observed and recorded, its size and weight measured, its shape, color, and texture examined, and any abnormalities such as damage, bleeding, necrosis, or lesions checked. Every discovery must be repeatedly confirmed and recorded in detail. At the same time, relevant internal organ specimens should be extracted, placed in specimen preservation containers, and labeled. Further tests will be conducted later, such as heart tissue specimens and liver tissue specimens, to confirm the degree of damage and check for residual toxins."

“Okay, now, let’s begin the chest dissection,” Zhang Kai said. He then picked up a sterilized scalpel, adjusted the angle of the operating light to illuminate the deceased’s chest more clearly, and then carefully made a “Y”-shaped incision on the deceased’s chest with the scalpel. The incision started from both sides of the deceased’s shoulders, extended downwards, met at the midline of the chest, and then extended downwards to the upper abdomen. The incision was about 20 centimeters long and about 1 centimeter wide. The scalpel was extremely sharp, and the incision was neat, smooth, and without the slightest deviation.

"Xiao Lin, take notes on the chest incision," Zhang Kai said to Xiao Lin while making the incision. "Make a Y-shaped incision on the deceased's chest, starting from both sides of the shoulder, extending downwards, converging at the midline of the chest, and then extending downwards to the upper abdomen. The incision is about 20 centimeters long and about 1 centimeter wide. The incision is neat and smooth, and there are no obvious abnormalities in the skin and muscle tissue. The muscle tissue is dark red, with a small amount of dried blood residue, which is clearly related to the wound on the deceased's chest. The preliminary judgment is that the deceased was stabbed in the chest before death, and the blood seeped into the muscle tissue."

After making the chest incision, Zhang Kai picked up dissecting scissors and forceps, carefully separating the skin and muscle tissue of the chest. First, he pulled the skin on both sides of the incision outwards, then used the dissecting scissors to cut open the pectoralis major and pectoralis minor muscles layer by layer, his movements gentle and precise, avoiding any damage to the remaining muscle tissue during the pulling process. (End of Chapter)