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El Libro de Referencia de las Huellas Dactilares - Chapter 7: Desarrollo de la Impresión Latente

NCJ Number
250980
Author(s)
Brian Yamashita; Mike French
Date Published
August 2017
Length
10 pages
Annotation

This chapter describes the many processes, techniques and methods in latent print development. 

Abstract

Latent fingerprint development may be achieved with a wide array of optical, physical, and chemical processes, and may be achieved with a wide array of optical, physical, and chemical processes. Because some techniques are often intricately related and continuously changing, it is imperative that those involved in laboratory and crime scene processing be well trained and well practiced. This chapter describes the nature of latent print residue and the most commonly used fingerprint development techniques. The following processes and techniques are discussed: latent print powders; ninhydrin and analogues; 1,8-Diazafluoren-9-one (DFO); 1,2-Indanedione; methylthioninhydrin (5-MTN); modifications for use on chemically treated paper, cyanoacrylate fuming; fluorescence examination; vacuum metal deposition; blood enhancement techniques; aqueous techniques; and formulations for chemical solutions. Figures, tables, and references

Date Published: August 1, 2017