NCJ Number
255150
Journal
Forensic Chemistry Volume: 1 Dated: August 2016 Pages: 74-77
Date Published
August 2016
Length
4 pages
Annotation
This article reports on a project that used steam thermography to image ridge patterns of blood-transferred artificial fingerprints on acrylic, polyester and cotton fabrics.
Abstract
Microscale thermal imaging confirmed that the ridge pattern transfer occurred on the tops of the most prominent threads in weave. Prints were readily imaged on the more hydrophobic fabrics in both heat-up and cool-down phases of vapor exposure. On the more hydrophilic cotton fabric, ridge detail was obscured by the strong background response of the fabric to moisture. The project concluded that microscale thermography indicates that loose cotton strands with transferred blood may respond differentially to moisture relative to uncoated strands. (publisher abstract modified)
Date Published: August 1, 2016
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