Document Type

Article

Publication Version

Published Version

Publication Date

2018

Journal or Book Title

Journal of Forensic Identification

Volume

68

Issue

4

First Page

588

Last Page

606

Abstract

A three-part study was designed to find the safest and most efficient method of processing glassine stamp bags containing suspected heroin while preserving the qualitative properties of the substance. Gravimetric analysis was also conducted to determine whether selected processing methods add weight to clean stamp bags. Qualitatively, the processing methods chosen for this study did not eliminate heroin from the samples. Results of a blind evaluation of developed latent prints indicate that under the controlled conditions of this study, magnetic powdering yielded the most “of value” latent fingerprints. However, because previous research has shown that magnetic powder is most effective a short time after fingerprint deposition (which was the case in this study), this conclusion should be regarded as tentative until longer times between deposition and recovery are studied. Gravimetrically, the processing methods used in this study add an amount of weight to the bags that is within the uncertainty of measurement for this laboratory.

Comments

This is an article published as Barnes, Brittany, Jason Clark, Joseph Kadane, Marla Priestley, Neil Spencer, Deborah Tator, Denielle Wauthier, and Joshua Yohannan. "Latent Print Processing of Glassine Stamp Bags Containing Suspected Heroin: The Search for an Efficient and Safe Method." Journal of Forensic Identification 68, no. 4 (2018). Posted with permission of CSAFE.

Copyright Owner

International Association for Identification

Language

en

File Format

application/pdf

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