Super Cyanoacrylate Esters

The cyanoacrylate ester fuming method of revealing fingerprints was discovered by the Criminal Identification Division of the Japanese National Police Agency in 1978. It was soon practiced all over the world. Amazingly, fingerprint residue exposed to cyanoacrylate ester fumes for brief periods of time become harden tan-colored fingerprint impressions. There are three different esters that [...]

The Sticky Side of Life

Given, the importance of developing latent prints on the sticky-side of tape, several methods for revealing them. Much like the “dusting” method of latent print revelation, a series of sticky-side wet powders are available. Generally, these are dry powders which are suspended in an aqueous solution with an anionic surfactant. Very likely the forces to [...]