Which of the following fingerprint visualisation techniques is particularly effective on paper that has been wet, materials soaked in petrol and chip wrappers?
A. Gentian Violet.
B. Physical developer.
C. Superglue fuming.
D. Sudan Black.
Answer:B
Which of the following fingerprint visualisation techniques is particularly effective on paper that has been wet, materials soaked in petrol and chip wrappers?
A. Gentian Violet. B. Physical developer. C. Superglue fuming. D. Sudan Black.