Unformatted text preview: strips, using a different brand of black marker, felt-tip pen, or ink pen for each strip. Set the strips in the glass so that the ends touch the water but the ink dots are above the water level. As the water soaks up into the paper, the ink will begin to separate into different colors. Note that some inks are not water-soluble; if the ink does not bleed, try using either nail polish remover or rubbing alcohol (stronger solvents that can dissolve the bonds in the ink) instead of water. You can also look at "suspect" paper itself - are there watermarks or imprints from writing on top? Professionals also study handwriting and can analyze a sample of disguised writing to see if it has characteristics that match a suspect's normal writing. http://www.hometrainingtools.com/forensic-science-projects/a/1227/...
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- Spring '10
- Writing, investigator, Pen, ink pen