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Types of Prints
Types of prints & how to develop latent prints
Term | Definition |
---|---|
Plastic Print | Formed by an imprint into a soft material such as wax or clay; a 3D impression. |
Visible Print | A print in a colored material such as blood or ink. |
Latent Print | An invisible print found on any surface (window, desk, etc) that must be developed in order to study it. |
Dusting | A way to develop latent prints that uses a fine powder on a hard, nonabsorbent surface. Prints are then lifted using clear sticky tape. |
Iodine Fuming | A way to develop latent prints where crystals react with the fatty oils in the finger to form short lasting golden brown print. Works best on soft porous surfaces like paper. |
Ninhydrin | A way to develop latent prints that reacts with the amino acids left by the finger to form a orange to purple image. Works best on porous surfaces like paper. |
Silver Nitrate | A way to develop latent prints that reacts with the salt left from perspiration in the same way that photographs are developed. |
Cyanoacrylate ester | A way to develop latent prints where superglue reacts with print residues to make a white, permanent impression. Works best on hard, nonporous surfaces like metal & glass. |