Which method relies on the deposition of polymerized cyanoacrylate ester on residues of latent fingermarks?
A. Ninhydrin
B. Cyanoacrylate fuming
C. Silver nitrate
D. Physical developer
Answer:B
Which method relies on the deposition of polymerized cyanoacrylate ester on residues of latent fingermarks?
A. Ninhydrin B. Cyanoacrylate fuming C. Silver nitrate D. Physical developer
Explanation: Cyanoacrylate fuming is a method commonly used to develop fingerprints on non-porous surfaces, such as glass, metal, or plastic. It involves heating cyanoacrylate, a common household adhesive, which reacts with the moisture and fatty acids in fingerprints, forming a white, solid deposit that enhances the visibility of the fingerprint.