What is Latent Prints?

Question

What will be an ideal response?

Answer 1

The latent print unit conducts all work pertaining to the examination of latent prints on evidence submitted to the Federal Bureau of Investigation (FBI) laboratory. Latent prints are impressions produced by the ridged skin on human fingers, palms, and the soles of the feet. Unit examiners analyze and compare latent prints with known prints of individuals in an effort to make identifications or exclusions.
Various techniques, including use of chemicals, powders, lasers, alternate light sources, and other physical means, are used in the detection and development of latent prints. In instances in which a latent print has limited quality and quantity of detail, unit personnel utilize Amido black protein. This is an amino-acid-staining diazo dye used in biochemical research to stain for total protein on transferred membrane blots in microscopic examinations to affect conclusive comparisons.