Regarding the judgment of left-handedness, it is inferred from the fingerprint marks left when the suspect held the dagger.
Whether a knife is held in the left or right hand can be judged by the direction of the fingerprint wrapping.
At the same time, Lu Chuan discovered some skin residues under Chen Bing's right fingernails.
During the chase and struggle, Chen Bing must have injured the suspect.
"Back to the team!"
After handling the work at the scene, Lu Chuan led the team back to the Criminal Investigation Team.
There's still a lot of work to be done, and Lu Chuan needs to authenticate and analyze the information collected from the scene, especially fingerprints and footprints.
More importantly, the task is to notify Chen Bing's family and his unit.
This task was assigned to Sun Biao.
Meanwhile, Lu Chuan provided a brief report on the situation to the district chief.
