Sample interview questions: What techniques do you use for fingerprint analysis in forensic biology?
Sample answer:
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Cyanoacrylate Fuming: This technique involves exposing a surface containing fingerprints to cyanoacrylate fumes. The fumes react with the esters present in the fingerprint residue, producing a white or colored product. This method is non-destructive and can be used to develop fingerprints on a variety of surfaces, including paper, plastic, and metal.
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Powder Dusting: Powder dusting involves applying a fine powder to a surface containing fingerprints. The powder adheres to the oils and sweat in the fingerprint residue, making it visible. This method is relatively simple to perform and can be used on a variety of surfaces. However, it can be destructive to the fingerprint residue, making it difficult to obtain DNA evidence from the same print.
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Chemical Enhancement: Chemical enhancement techniques involve using chemicals to react with the fingerprint residue, making it more visible. Common chemical enhancement techniques includ… Read full answer