一片木屑、一根头发、一丝纤维……在美国圣迭戈市一条郊外公路旁的水沟里,警察发现了一具尸体。死者满身是血,头已被钝器击破。在仔细检查了现场之后,没有发现罪犯任何的蛛丝马迹,毫无破案线索。受害者是名铁匠,住在圣迭戈市附近的一个吉普赛人居住点。在警方调查时,死者的左邻右舍对此一无所知,不能提供任何线索。除了法医在死者耳内发现一片木屑外,没有其他有价值的证据,看来破案无望。然而,这片木屑被送到了加里福尼亚州的警察科技中心,高倍电子显微镜证明这是从另一铁匠的木棒上掉下来的。当警察出现在他作坊时,罪犯不得不从 A piece of sawdust, a piece of hair, a hint of fiber ... Police found a body in a gutter near an outlying country road in San Diego, United States. The dead covered with blood, the head has been blunt broken. After a careful examination of the scene, did not find any clues criminals, there is no clues. The victim was a blacksmith living in a Gypsy settlement near San Diego. During the police investigation, the neighbors of the deceased knew nothing about it and could not provide any clues. Except that forensic medicine discovered a piece of sawdust in the ear of the deceased, there was no other valuable evidence and it appeared that there was no hope of solving the case. However, the chips were sent to the California Police Technology Center where high-power electron microscopes proved that it was falling from another blacksmith’s wooden stick. When the police appeared in his workshop, the offender had to