The Presence of Gunpowder Residues on a Garment Whose Color

question 39

Multiple Choice

The presence of gunpowder residues on a garment whose color conceals the existence of the residues is best revealed by

• A) infrared spectrophotometry.
• B) color photography.
• C) gas chromatography.
• D) infrared photography.
• E) ultraviolet photography.

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