Porous Enhancement
Chemicals for Porous Substrates |
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When a residue is absorbed into a porous material, the following chemicals can be used to enhance the latent fingerprint deposits and make them visible by reacting with target materials within the substrate: 1,2-indanedione, 1,8-diazafluoren-9-one (DFO), ninhydrin, and 1,2-indanedione + ninhydrin. During the enhancement on porous substrates, these chemicals interact with oils or amino acids of a fingerprint impression that has been absorbed into the material.
A process through which material gets incorporated into another material, often the solid surface of a porous material.
The surface of a material that allows for the absorption of the materials into the substrate (e.g., paper, leather, tape, clothing).
Marks or indentations left at a crime scene often in the form of handprints, footprints, or fingerprints that are not visible to the naked eye without some form of enhancement.
The basic building blocks of proteins, which are used to make tissues in our body. Amino acids can be secreted from eccrine glands as sweat and deposited on various substrates.
Describes the transfer of oils or lipids from a finger onto a surface resulting in the replication of the friction ridge pattern seen on the fingertip, including the minutiae.
