ISSN: 0022-1198
CODEN: JFSCA
Page Count: 3

Recovery of Latent Prints and Drug Residues from a Problem Porous Surface
Katz, AI
Crime laboratory analysts III, Wisconsin State Crime Lab—Milwaukee, WI

Nielson, JP
Crime laboratory analysts III, Wisconsin State Crime Lab—Milwaukee, WI

(Received 2 June 1987; accepted 19 January 1988)

Abstract

A protocol to maximize the probability of recovery of both drug residues and latent prints has been previously reported. A particular type of substrate (paper) has been encountered which traps drug residues in the paper matrix, thereby preventing recovery by the methods previously reported. In the case in which the existing protocol fails to recover drug residues, an additional technique is described which has allowed recovery of confirmatory amounts of the drug. The technique consists of sonication of the substrate in methanol after latent print processing.

Keywords:
forensic science, cocaine, drug residues, spectroscopic analysis fingerprints, mass spectrometry, latent prints

Paper ID: JFS12599J
DOI: 10.1520/JFS12599J
ASTM International is a member of CrossRef.