物證鑑識在槍擊現場偵查上的應用

The Application of Physical Evidence Examination to the Investigation of Gunshot Incidents

槍擊事件常嚴重危害社會治安，故深受政府和民眾之重視。槍擊過程留下之物證非經鑑定無法用於案件的偵查和審判，故物證鑑定工作是槍擊現場偵查的重點。本文擇重點闡述涉案槍枝鑑識、涉案子彈鑑識、射擊後彈頭及彈殼比對、槍擊現場微物跡證鑑識、槍擊現場生物跡證鑑識和彈道重建等領域的重要觀念和技術，並舉知名槍擊現場為例，輔助說明，期能增進偵查人員對槍擊現場物證鑑識的暸解。槍擊事件常吸引媒體注意，其報導常誤導閱聽大眾，造成執法和司法上的困擾。負責偵查和審判的專業人員應委託適當的鑑識機關和鑑定專家，協助進行相關物證的鑑定和槍擊事件的重建，以維持執法和司法的可信和公正。

Gunshot incidents often seriously jeopardize the safety of the society, thus attract the attention of the government and the people. Physical evidences left on the gunshot crime scene should be forensically examined before they can be utilized to assist the investigation and court judgment of gunshot incidents. In this article, I described the critical knowledge and techniques for the forensic examination of physical evidences related to gunshot incidents. The topics included in this article are: forensic examination of firearms, forensic examination of cartridges, forensic comparison of fired bullets and cartridge cases, forensic examination of trace evidences, forensic examination of biological evidences, and ballistic reconstruction of gunshot incidents. Well-known gunshot cases are taken as examples to illustrate the described contents. Hopefully, this will improve the investigators' understanding concerning the forensic investigation of gunshot cases. Gunshot incidents often became high-profile news. And the misleading information provided by public media often interferes with the investigation and court judgment of the gunshot incidents. Thus the prosecutors' office and the court should ask for assistance from forensic experts to conduct the examination of related physical evidences and the reconstruction of gunshot incidents to maintain the reliability and justice of law enforcement and court judgment.