Stone I C
J Forensic Sci. 1987 May;32(3):711-6.
The weapon at the scene of a suicide provides a resource in addressing such questions as frequency of blood in or on the weapon, location of the weapon with respect to the body, and evidence of firearm discharge residues on the hand. The first 195 weapons were tested for blood by a technique different from the following 202 weapons. Results were obtained which caused procedural changes in blood detection. Data are presented for frequency of blood in and on the muzzle of weapons, relative frequency of location of suicidal gunshot wound, and percent "positive" findings of gunshot residue metals on the hands. It was found that suicidal gunshot wounds were 3 times more frequent to the head than the chest, and that no significant difference was noted between males and females in this study. Scene photographs reveal that the suicide weapon is in or resting on the hand of the decedent 20% of the time with handguns and 11% of the time with long guns.
自杀现场的武器为解决诸如武器内部或表面的血迹频率、武器相对于身体的位置以及手上枪支射击残留物的证据等问题提供了一种资源。最初的195件武器采用了与随后的202件武器不同的技术进行血迹检测。所获得的结果导致了血迹检测程序的改变。文中给出了武器枪口内部和表面的血迹频率、自杀性枪伤位置的相对频率以及手上枪支残留物金属“阳性”发现的百分比的数据。研究发现，自杀性枪伤发生在头部的频率是胸部的3倍，并且在本研究中男性和女性之间未发现显著差异。现场照片显示，自杀武器有20%的时间在死者手中（手枪情况），11%的时间在死者手中（长枪情况）。
