Document Detail


An Investigation into the Effects of Force Applied During Deposition on Latent Fingermarks and Inked Fingerprints Using a Variable Force Fingerprint Sampler.
MedLine Citation:
PMID:  25421356     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Physical factors, including the magnitude of the force applied during fingermark deposition, may affect friction ridge surface area and clarity, and the quantity of residue transferred. Consistency between fingermarks may be required; for example, in research projects, yet differences between marks are likely to exist when physical factors are not controlled. Inked fingerprints and latent fingermarks were deposited at 1-10 N at 1 N increments using a variable force fingerprint sampler to control the force, angle of friction ridge and surface contact, and the duration of friction ridge and surface contact. Statistically significant differences existed between the length and width measurements of the inked prints (p ≤ 0.05), particularly at lower forces. Scanning electron microscopy and surface plot analysis demonstrated how differences in force applied during deposition affected ridge surface area, displacement of latent residue, and differences in the quantity of residue transferred. Consistency between inked prints was demonstrated at equivalent forces.
Authors:
Sarah J Fieldhouse
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-24
Journal Detail:
Title:  Journal of forensic sciences     Volume:  -     ISSN:  1556-4029     ISO Abbreviation:  J. Forensic Sci.     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-25     Completed Date:  -     Revised Date:  2014-11-26    
Medline Journal Info:
Nlm Unique ID:  0375370     Medline TA:  J Forensic Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 American Academy of Forensic Sciences.
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