某年7月15日,深圳市宝安区铁仔山上发生一宗抢劫文物案,受害人被枪击致死,经现场勘查从尸体上提取弹头一枚。同年9月抓获犯罪嫌疑人,并收缴手枪三支。笔者负责了该案的弹道检验。此案之前,笔者一直认为弹头检验只要膛线痕迹宽度不同,就可大胆做出否定结论,这也是枪弹痕迹检验中 On July 15 of a certain year, a case of robbery and cultural relics occurred on the hill of Baozi District, Bao’an District, Shenzhen. The victim was shot dead, and a warhead was taken from the body upon investigation. In September the same year arrested the suspects, and confiscated three pistols. The author is responsible for the ballistic examination of the case. Before the case, I always thought that as long as the rifle test width different rifling marks, you can boldly make a negative conclusion, which is also the bullet test traces