RECOVER: LFT Development of fingermarks on hidden surfaces


The latest in a series of tests designed to explore the limits of the RECOVER: LFT fingermark development technique, researchers at Foster+Freeman have been using the revolutionary new technology to visualize marks planted on metal plates, which were then tightly folded to hide the print from view.


While much attention is paid to the discovery and visualization of fingermarks that may have been left on the surface of an object, there may also be cases where identifiable marks exist outside of the examiner's line of sight.

The interior of a tightly folded piece of metal would most likely be unsuitable for any method of development that requires the surface to be painted, dusted, or readily exposed to a chemical treatment.

However when treated using RECOVER: LFT, a chemical vapor enhancement technique, the fingerprints placed on a metal plate can be easily visualized despite being obscured by the plate being folded in half.















 Video: Fingermarks are revealed on a folded metal plate


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