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27 April, 16:20

During a crime scene investigation, latent prints were obtained from a plastic surface. Which method would have been used by the investigators to detect the latent prints?

A) iodine fuming

B) ninhydrin

C) magna brush

D) silver nitrate

E) adhesive tape

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Answers (1)
  1. 27 April, 19:48
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    The correct answer is option C, Magna Brush

    Plastic is a non-porous surface and usually powder technique is used identify the latent prints on all non-porous surface. The Magna brush technique is used. In this methodology, the powder is spread over the surface and is evenly spread over the surface with a brush. In some recent technologies, the powder is spread though magnetic force. For ensuring better visibility, the colour of the powder must be contrasting to the colour of the surface.
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