Through the damage on the skin, to determine the directionality of the force, he had heard the old forensic expert Wu You analyze it before.
However, the judgment of damage direction in the past was much simpler than this.
At least the bleeding on the skin could be seen with the naked eye.
Jiang An stretched out his hand, explaining, "Under normal circumstances, our skin is very smooth and flat."
"When the skin comes into contact and rubs against an irregular object, localized skin damage occurs, forming local skin flap protrusions."
"Judging from the direction of my palm movement just now, we can also determine that the external force on the deceased's skin was from the chest to the neck."
Wan looked curious and said, "The deceased was naked, and the chest rubbed against the ground..."
After thinking for a while, Zhang Yean said, "Could the body have been dragged?"
Jiang An turned to glance at Zhang Yean.
