At Evidence Processing Room in Santa Ana, CA, Police Dept forensics lab tech examines a gun for latent fingerprints.
In the Evidence Processing Room of the Santa Ana, CA, Police Department's forensics laboratory, a technician brushes black fingerprint powder on a pistol used to commit a crime after cyanoacrylate fuming in an oven to detect latent fingerprints. Cyanoacrylate is warmed to produce fumes that react with the invisible fingerprint residues to form a white polymer (polycyanoacrylate) on the fingerprint ridges.
Size: 4368px × 2912px
Location: Santa Ana, California USA
Photo credit: © Marmaduke St. John / Alamy / Afripics
License: Royalty Free
Model Released: Yes
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