that black powder would fluoresce did you? Well I did not either
until one day several years ago at the Louisiana IAI Conference.
Several crime scene officers and I were talking about how the
officer in the field likes to use fluorescent powder but the
lab does not like it because the latent examiners like black
latent on a white card. I started mixing powders and low and
behold I came up with a powder that fluoresces orange on a dark
surface and black on a light surface and when you lift the latent
it goes on a white backing card. Now everyone in happy.
All I had to do when I got back to the office
was create the formula for the powder in both standard and magnetic
powders. This sounded easy and three weeks later I finally got
What you now have is a powder that you can
use on various surfaces and use your light source with powder
on dark surfaces and on light surfaces you treat it like if
you had regular black powder. When done lift the latent print
after you photograph it and place the lift on a white backing
The Fluorescent Black Standard or Magnetic Powder
can be purchased through the Lynn
Peavey Company and samples are available.