中文摘要：

致伤物可为侦查和审判提供准确、可靠的线索和证据。在法医学实践中，创内异物的分析与检测一直是致伤物推断和认定的重要途径之一。近年来，随着一系列先进检测技术的应用，使得致伤物在创周遗留的微痕量物证的发现和检验获得了重要进展。微痕量检验也由对火器伤射击残留物的分析扩展到钝器伤和锐器伤检验．并取得了初步的进展。

英文摘要：

The deduction of injury implement can provide accurate and reliable clues or evidences to investigation and judgment. In forensic medical practices, analysis and examination of foreign bodies in wounds is an important way of deducing the injury implement. Recently with the application of a series of advanced examination techniques, detection and examination of trace evidence has achieved a great development. Quantitative examination of trace evidence has also made an initial progress by expanding the analysis of gunshot residues of firearm injuries to the examination of blunt or sharo force injuries.