However, she believed in her medical expertise and did not suffer from stage fright because she was the first to speak.
Huang Hanhan thought to himself, it's not a big deal to speak first, it would be a good start for everyone. As for getting a "full house", then there is no extravagant hope!
Huang Hanhan stood up when he thought of this, "Okay! Let me talk about my specific judgment first."
After finishing her opening remarks, she asked everyone: "The five photos are arranged in the same order. I guess the photos in your hands are also the same? Instructor, are our photos arranged in the same order?"
Seeing Xie Liuyun and others nodding, she looked at Qian Feng and got the same affirmative answer.
So, Huang Hanhan began to explain his judgment on the photos, "In order, the causes of death of the mice in the photos were 'a heavy blow to the head, death by drowning, death by squeezing, disease and poisoning'."
After expressing his judgment, Huang Hanhan picked up his notebook, looked at the contents of his notebook, and read aloud: "The white mouse in the first photo has a depression on the left back of its head, and there is blood oozing from its ears and nose.
, should have died from intracranial hemorrhage caused by a heavy blow to the head;
The white mouse in the second photo has no obvious trauma on its body, but its eyes are wide open, its belly is bulging, and there are water stains on the floor where it lies. It should have died of drowning and lack of oxygen;
The white mouse in the third photo has no obvious trauma on its body, but there are blood stains around its eyes, ears, nose, and mouth. Its limbs are curled up, and its right front paw and left hind leg are at an exaggerated angle. It should be that the whole body was squeezed and caused massive bleeding inside the body.
to die;
The white mouse in the fourth photo has no obvious trauma on its body, its limbs bend and straighten at normal angles, and its facial features are not distorted. It should have died of illness;
The white mouse in the fifth photo has no obvious trauma on its body, but its limbs are tightened, its front and rear paws are clenched, its mouth is slightly open, and its tongue is blue and black. It should be that it died of poisoning.
These are the basis for my judgment on the cause of death of the five mice. Please correct me, instructor."
Qian Feng nodded, put down the analysis and judgment written by Huang Hanhan in his hand, picked up another one, and called out: "Sheng Qingfeng, please explain your judgment and basis for the five photos."
Sheng Qingfeng stood up as instructed and began to explain his analysis and judgment.
Afterwards, it was Shang Baifeng who spoke, and finally Xie Liuyun.
Coincidentally, everyone's judgments are consistent, but the basis for judgment is somewhat different.
This surprised Xie Liuyun and the others. You looked at me, and I looked at you, smiling knowingly.
After all four people expressed their opinions, Qian Feng said to everyone: "What everyone said is good. I will now start to analyze and explain the five photos in detail in order.
I hope everyone will listen carefully and take notes. If there is anything unclear, you can interrupt me at any time to ask questions."
After everyone was ready to listen to the lecture, Qian Feng picked up the first photo and said, "Please take a look at the first photo in your hands. First of all, I want to make sure that you know the cause of death of this white mouse."
The judgment was correct. The mouse was hit hard on the head with a blunt object, causing the skull to be broken and intracranial hemorrhage to death.
Remember, I said 'blunt object' rather than 'heavy object'. Although the two words differ only by one word, the meaning of the words is very different.
'Heavy objects' include regular-shaped objects with a certain weight, irregular-shaped objects, sharp objects and blunt objects, etc. The content is relatively broad. If it is not explained accurately, it can easily cause misunderstandings and affect the detection of cases.
In the work content of forensic scientists, the word 'heavy object' cannot appear directly and be used to describe objects. This does not meet the requirements of the regulations."
After emphasizing this point, Qian Feng pointed to the white mouse in the photo and said: "The white mouse has no injuries on other parts of its body. Only a trauma was found on the left back side of its head, which shows that it was caught off guard.
The rat was hit hard on the head and lost its resistance. It did not provoke another attack from the attacker. This injury was the mouse's fatal injury.
In addition, the injury was sunken and there was no obvious wound, indicating that the weapon that caused this trauma was a 'blunt object'.
The skin around the depression on the head was damaged and torn, showing that the force of the 'blunt object' was very violent.
At the same time, we cannot rule out the possibility that the 'blunt object' itself is very heavy, which can invisibly increase the intensity of hitting the mouse's head.
At this time, I would like to focus on my own speculation. This is an inference and assumption based on the injury on the head of the mouse. It can be used as a reference for colleagues in charge of criminal investigation.
As I have just mentioned, according to the injury, the "blunt object" only hit the mouse's head once, and there was no sign of a second blow to cause such a trauma.
It can be seen from this that the person who attacked the white mice was very skilled and experienced in the way of committing the crime, and may be a professional killer.
Let's look at the blood oozing from the ears and nose of the mouse. This fully proves that the trauma to its head has caused intracranial hemorrhage, which is the direct cause of death.
Assuming that we are at a crime scene or in the workshop, I will ask everyone to wear masks to filter the inhaled air and wear gloves to prevent contact with contamination. After taking the above protective measures, the injury to the mice will be
Please do further inspection.
The specific content is to directly touch the skin outside the wound with your hands to feel whether the skull is broken, and check whether there are fractures in the limbs, neck, chest and abdomen to further determine the cause of death of the mouse.
For example, open its eyelids to check the condition of its eyes. If there is congestion under the eyes, the mouse must have died of suffocation.
If there are finger marks, strangulation marks or cervical vertebra fractures on the neck, the rat will undoubtedly die of homicide.
All these situations require us to carefully examine and explore, and if necessary, conduct anatomy to verify our assumptions."
After saying this, Qian Feng said with some emotion: "In short, the forensic doctor is the last person the deceased communicates with, and the last person the deceased relies on in the world.
Therefore, the professional ethics of a forensic doctor is to 'always respect life and always respect the deceased', the professional requirement is to 'strive to decipher what the deceased wanted to say but did not say', and the work goal is to 'provide valuable and important clues for solving the case, so that the deceased can be
Gain liberation and rest'.
I have been working as a forensic scientist for five years, and I still haven’t done enough. I must continue to work hard.
All of you here are people with extraordinary qualifications, and I will impart everything I have learned to others. I only hope to work with you in the future to make this world less guilty and more peaceful!"
Listening to Qian Feng's words, Xie Liuyun and others were a little moved, and unconsciously strengthened their sense of mission and responsibility.