【摘要】 通过使用铁红粉末对不同客体表面不同手印物质的潜在手印进行显现，表明铁红粉末对潜在皮脂手印和油脂手印显现效果较好；同时对于瓷砖、玻璃等非渗透性客体上的潜在手印显现效果也非常突出，并可显现7天内的潜手印；与传统粉末相比，适用范围更广泛，显现效果更明显，灵敏度更高。因此，铁红粉末能够单独作为显现材料用于手印显现中，可用于非渗透客体表面较新鲜的皮脂或油脂手印的显现，可在司法实践中推广使用。更多还原

【Abstract】 This study focuses on the latent fingerprint development of different substances on the surface of different objects by applying red iron oxide powder as the developing agent.For the latent sebum fingerprints and grease fingerprints, the development is better; for the latent fingerprints on the non-permeable objects such as tiles and glasses, the development is also clear and can be shown for 7 days.Compared to the traditional powders, the red iron oxide powder is more applicable and more sensitive.Therefore, the red iron oxide powder can be applied alone as the material for latent fingerprint development, and can be applied in the fingerprint development of the relatively fresh sebum or grease fingerprints on the surface of the non-permeable objects.This is applicable generally in judicial practice.更多还原