Abstract: This article explains some terms in GA/T953-2011 Code of Determining Specific Kinetic Energy of Firearms Muzzle by Velocimeter in Forensic Science implemented in 2011, including the selection of velocimeters, methods of injury force determination and calculating formula of uncertainty. It turns out that any vilocimeter which reaches the standard of testing precision could be applied in determining firearm injury force after testing the initial velocity complied with the Code. In the Code, the main method of testing injury force is velocity test, which could be carried out according to the Code and other methods as well. Calculation test is as scientific and precise as Equation test. Certainty formula concerned in the Code is calculated and deduced from the formula of general theory combined with the terms in the Code.

Key words: font-size: 10.5pt, mso-bidi-font-size: 10.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang="EN-US">velocimeter, injury force, uncertainty, calculation test, equation test

摘要： 2011年在全国公布执行：GA/T953-2011《法庭科学枪口比动能测速仪法测试规程》中的测速仪的选定、致伤力的检测方法、不确定度计算公式结合标准《规程》涉及的特定标识经严格演算与推导的获得作进一步的阐述。说明不论使用什么品种的测速仪，只要测试精度达到要求，都可以按标准《规程》进行初速测试，用以鉴定枪支致伤力。强调在标准《规程》中，致伤力检测的主要方法是测速法，测速法可按本规程执行，但本《规程》未排除其它方法。计算法与等阈值检测法同样具有科学性、准确性。标准《规程》中关于不确定度的公式，由不确定度的通用理论中的公式，结合本规程涉及的特定标识经严格演算与推导获得。

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