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How can you find fingerprints at home?

Published in Forensics 2 mins read

You can find fingerprints at home using common household items like baby powder or cornstarch, a soft brush, and tape.

Here's a simplified breakdown of how to reveal and lift fingerprints at home:

  1. Prepare your dusting powder: Baby powder, cornstarch, or even cocoa powder can work. The goal is to use a fine powder that will adhere to the oils left behind by fingerprints.

  2. Apply the powder: Gently dust the powder over the area where you suspect there are fingerprints (e.g., a glass, a smooth surface). A soft brush, like a makeup brush, is ideal for this. Lightly tap the brush to avoid applying too much powder.

  3. Reveal the print: The powder will stick to the fingerprint residue. Gently brush away the excess powder, revealing the fingerprint pattern.

  4. Lift the print: Carefully place a piece of clear tape over the dusted fingerprint. Smooth the tape down gently to ensure contact.

  5. Transfer the print: Carefully peel the tape off the surface, lifting the fingerprint with it.

  6. Preserve the print: Stick the tape onto a contrasting colored piece of paper or cardstock to make the fingerprint visible. Black paper is good for light powders and white paper for dark powders.

Remember, this is a simplified method and may not produce perfect results. Professional fingerprinting techniques are more sophisticated.

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