The criminalist is detecting latent evidence. Luminol reacts with hemoglobin in blood, allowing for the detection of traces of blood that might not be visible to the naked eye, which classifies it as latent evidence.
A criminalist uses a fluorescent chemical called luminol and an ultraviolet light source to see a large bloodstain on a carpet. Which type of evidence is he detecting?
Question 2 options:
direct evidence
gross evidence
latent evidence
trace evidence
1 answer