The small particles bind into the fatty/oily components in the fingerprint residues due to the addition of a surfactant; This can be only possible due to relative security of such factors taken care of as time passes. Therefore, aged fingerprints could be developed by using the small particle reagent method. https://ewartp961mlj2.blogunteer.com/26475798/details-fiction-and-hodgdon-benchmark-smokeless-gun-powder