Which of the following reagent used in the development of fingerprints contaminated with blood?
A. Acid Black 1
B. Acid Violet 17
C. Acid Yellow 7
D. All of the above
Answer:D
Which of the following reagent used in the development of fingerprints contaminated with blood?
A. Acid Black 1 B. Acid Violet 17 C. Acid Yellow 7 D. All of the above
Explanation: In the presence of proteins from blood or other body fluids, acid black 1, acid violet 7 produce blue-black, vivid violet and yellow fluorescent images, respectively.