Which chemical treatment involves using dyes to stain the fingerprint residue on non-porous surfaces, enhancing their visibility?
A. Ninhydrin
B. Cyanoacrylate fuming
C. DFO (1,8-diazafluoren-9-one)
D. Acid Yellow 7
Answer:D
Which chemical treatment involves using dyes to stain the fingerprint residue on non-porous surfaces, enhancing their visibility?
A. Ninhydrin B. Cyanoacrylate fuming C. DFO (1,8-diazafluoren-9-one) D. Acid Yellow 7
Explanation: Acid Yellow 7 is a dye that can be used to stain the fingerprint residue on non-porous surfaces, enhancing their visibility and aiding in fingerprint development.