Hefei lawyer and criminal lawyer Hefei: Please analyze a criminal scientific and technological appraisal of intentional homicide by public security organs.

In view of the fact that this question requires forensic expertise, in order to answer this question, I specially consulted Mr. Jin Hu, a barrister who is on holiday in other places. Lawyer Hu believes that the appraisal logic of the appraisal book is wrong:

Because there is a little bleeding in the eyelid conjunctiva of the corpse-→, there is mechanical suffocation during the death of the corpse!

The causes of punctate blepharoconjunctival hemorrhage are bleeding caused by the rupture of microvascular plexus under the eyelid conjunctiva, and the oozing blood condenses between the conjunctiva and the eyeball, causing punctate blepharoconjunctival hemorrhage, which is common in trauma, surgery or some conjunctival inflammation. This is medical common sense. The death of mechanical asphyxia will cause punctate hemorrhage of eyelid conjunctiva of corpse, but it must not be inferred from punctate hemorrhage of eyelid conjunctiva of corpse that there is mechanical asphyxia in the process of death. The causality of this conclusion is reversed!

The general signs (signs) of dead bodies from mechanical asphyxia are: "facial bruising"; "Respiratory secretions increased, affected by local mechanical stimulation or pulmonary edema. When suffocating, respiratory secretions increase, or foam rushes out of the nasal cavity, or sticks to the outside of the mouth and nasal cavity in a flowing way. "

If the dead body has no "facial swelling" and "abnormal secretions in the ear canal and nasal cavity", then the dead body does not meet the general signs of mechanical asphyxia. "The deceased suffered from severe craniocerebral injury caused by blunt instrument, supplemented by mechanical asphyxia." The conclusion is untenable!