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- Title
Potential Characteristics to Aid Latent Print Examiners in Analyzing Possible Laterally Reversed Images on Porous Surfaces.
- Authors
Flanders, Jack; Moyer, Ava; Fisher, Casie Parish
- Abstract
This study reviews latent print residue transfers from one porous surface to another. It also determined indicators in a latent print that could serve as "red f lags" during analysis. The study was conducted using the following substrates: 20lb copy paper, A4 paper, and college-ruled lined paper. A transfer sheet was placed on top of each print. A 20lb weight was placed on top of the transfer sheet and was left for 14 days. After this time, the weight was removed, and the substrates were processed with a 1,2-indanedione formulation. Test samples (with original print deposit) and transfer sheets were placed in a humidity chamber, viewed with a laser, and then photographed. Overall, the conclusions ref lect (1) latent prints can transfer from one porous surface to another and (2) there are characteristics that may alert the examiner to the possibility of a laterally reversed image: a corona (also known as halo) effect, fuzzy appearance, or faint appearance.
- Subjects
TRANSFER printing; SURFACE brightness (Astronomy); PRINTS; X-ray microanalysis
- Publication
Journal of Forensic Identification, 2021, Vol 71, Issue 1, p49
- ISSN
0895-173X
- Publication type
Article