油红O显现热敏纸上潜在手印研究

Development of latent fingerprints on the thermal paper by using oil red O

目的建立了一种油红O显现热敏纸上客体表面的潜手印的新方法。方法将检材浸泡在配制好的油红O的显现试剂中,油红可将指纹中遗留的油脂染色从而显现出手印纹线。结果显现出手印纹线为红色,纹线连贯,反差明显。结论油红O能够有效地显现出热敏纸上潜手印。

Objective To set up a new method for developing fingerprints on the thermal paper with oil red O. Method The thermal paper is soaked in the oil red O solution, and the oil red O could colored the fats contained in the fingerprint residue. Result Color of ridges developed by the method is red, continuous, and the contrast is high. Conclusion Oil red O is effective reagent for the development of latent fingerprints on the thermal paper.