Single-metal deposition (SMD) as a latent fingermark enhancement technique: an alternative to multimetal deposition (MMD).
This paper proposes an alternative solution to multimetal deposition (MMD) for the development of latent fingermarks on non-porous and porous surfaces. MMD offers a good sensitivity, however it is very time-consuming and requires many reagents to be carried out. Single-metal deposition (SMD) replaces the silver enhancement of the gold colloids by a gold enhancement procedure. This reduces the number of baths by one as well as the number of reagents and their cost, utilizes reagents with a longer shelf life, and most importantly reduces the labor-intensity of the procedure. It offers quasi-identical results to MMD and thus makes a very attractive alternative.
Stauffer
Eric
E
Institut de Police Scientifique, School of Criminal Sciences, University of Lausanne, Batochime, CH-1015 Lausanne, Switzerland. criminalistics@mac.com
Becue
Andy
A
Singh
Kanwar Vikas
KV
Thampi
K Ravindranathan
KR
Champod
Christophe
C
Margot
Pierre
P
D003365:Costs and Cost Analysis; D003878:Dermatoglyphics; D017979:Gold Colloid; D017612:Gold Compounds; D006801:Humans; D019811:Hydroxylamine; D007091:Image Processing, Computer-Assisted; D010781:Photography; D013499:Surface Properties
D017979:Gold Colloid; D017612:Gold Compounds; C038016:gold chloride; D019811:Hydroxylamine